Details of the Researcher

PHOTO

Ken Osaka
Section
Graduate School of Dentistry
Job title
Professor
Degree

  • 博士（医学）（東京大学）

  • 修士（保健学）（東京大学）

Profile
http://www.dent.tohoku.ac.jp/ih/prof/prof.html

Research History 8

  • 2016/10 - Present
    東北大学スマートエイジング学際重点研究センター　部門長・教授

  • 2012/04 - Present
    Tohoku University　International Research Institute of Disaster Science

  • 2004/04 - 2005/07
    Ministry of Health, Labour and Welfare

  • 2004/04 - 2005/07
    Ministry of Health, Labour and Welfare

  • 2004/04 - 2005/07
    厚生労働省老健局老人保健課　課長補佐

  • 2003/10 - 2004/03
    国立感染症研究所　主任研究官

  • 2001/07 - 2002/06
    Harvard School of Public Health　Tekemi Fellow

  • 1997/04 - 2001/06
    National Institute of Infectious Diseases　Staff Researcher

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Education 3

  • The University of Tokyo　Graduate School, Division of Medical Sciences

    - 1997/03/31

  • The University of Tokyo　Graduate School, Division of Medical Sciences　International Health Policy & Planniing

    - 1995/03/31

  • Tohoku University　Faculty of Medicine

    - 1990/03/31

Committee Memberships 17

  • 東京都iCDC　アドバイザリーボード

    2020/10 - Present

  • 厚生労働省　新型コロナクラスター対策班

    2020/04 - Present

  • 内閣府食品安全委員会　微生物・ウイルス専門委員 （座長）

    - Present

  • 仙台市　宮城総合支所学校保健・地域保健連絡会議（思春期保健分野）アドバイザー

  • 石巻市　地域包括ケアシステムアドバイザー

  • 岩沼市　介護保険事業計画委員会委員

  • 宮城県　元広域防災拠点整備検討委員

  • 宮城県　元行政評価委員（医療福祉教育分科会長）

  • 宮城県　感染症対策委員（元麻疹部会長）

  • 宮城県　医療介護総合確保事業計画策定懇話会委員

  • 宮城県　介護予防に関する事業評価・市町村支援委員会委員

  • 宮城県　市町村国保広域化等支援委員会(座長)

  • 宮城県　みやぎ21健康プラン協議会会長

  • 内閣府食品安全委員会　技術評価WG専門委員

  • 厚生労働省　社会保障審議会介護給付費分科会介護報酬改定検証・研究委員

  • 厚生労働省　がん検診の事業の評価に関する委員会委員

  • WHO/FAO microbiological risk assessment　Expert drafting member

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Research Areas 1

  • Life sciences / Hygiene and public health (non-laboratory) /

Papers 266

  1. Impact of posterior occlusal contact loss on cardiovascular disease using a Japanese claims database. International-journal

    Takashi Miyano, Yudai Tamada, Taro Kusama, Ken Osaka, Kenji Takeuchi

    Scientific reports　15　(1)　16693-16693　2025/05/14

    DOI： 10.1038/s41598-025-01846-x 　

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    Cardiovascular disease (CVD) is a global health concern; however, its association with the posterior occlusal contact remains unexplored. This study investigated the association between posterior occlusal contact and CVD risk in a large Japanese cohort and examined whether the loss of posterior occlusal contact in individuals with at least 20 teeth was a distinct CVD risk factor. Using Japanese health insurance claims data from 1,209,997 adults aged ≥ 40 years without prior CVD history (April 2016-March 2022), participants were categorized using the Eichner classification to assess posterior occlusal contact. Over an average follow-up period of 36.2 months, 51,471 participants developed CVD. Compared with individuals with full occlusal contact (Eichner A), those with reduced contact (Eichner B and C) demonstrated significantly higher CVD risks, with hazard ratios of 1.25 (95% confidence interval [CI]: 1.19-1.32) and 1.31 (95% CI: 1.17-1.46), respectively. In a subgroup analysis of participants with ≥ 20 teeth, reduced occlusal contact from Eichner A2 to B2 was associated with an increased risk of CVD, especially in those aged 40-59 years. These findings suggest that reduced posterior occlusal contact may contribute to increased CVD risk, emphasizing the importance of preserving natural occlusal support for CVD prevention.

  2. Differences in health care expenditure due to the comorbidity status of periodontal disease and diabetes mellitus. International-journal

    Anna Kinugawa, Kenji Takeuchi, Yudai Tamada, Taro Kusama, Misuzu Sato, Megumi Maeda, Fumiko Murata, Ken Osaka, Haruhisa Fukuda

    Journal of periodontology　2025/01/18

    DOI： 10.1002/JPER.24-0496 　

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    BACKGROUND: To investigate the differences in health care expenditure (HCE) due to the comorbidity status of periodontal disease (PD) and diabetes mellitus (DM). METHODS: This cohort study used health care claims and oral health screening data to identify participants with PD or DM and followed them for 1 year to assess their HCE. PD and DM were determined based on PD screening and medical claims data, respectively. The study participants were divided into four groups: participants without PD and DM (PD-/DM-), participants with PD and without DM (PD+/DM-), participants without PD and with DM (PD-/DM+), and participants with PD and DM (PD+/DM+). Covariates included age, sex, smoking status, and Charlson Comorbidity Index (CCI) score. A generalized linear model (GLM) with a gamma distribution and log link function was used to examine the association between comorbidity and annual HCE, and a two-part model was used to assess the differences in annual HCE. RESULTS: In total, 790 participants (mean age: 63.1, 30.3% male) were included. Compared with the PD-/DM- group, the relative cost ratio (RCR) for the PD+/DM+, PD-/DM+, PD+/DM- groups were 1.31 (95% confidence interval [CI]: 1.06-1.62), 1.27 (95% CI: 0.99-1.64), 1.01 (95% CI: 0.89-1.14) times higher, respectively. The adjusted mean annual HCE for the PD+/DM+, PD-/DM+, PD+/DM- groups were \59,328 (95% CI: 14,171-104,484), \50,228 (95% CI: -15,801-116,256), \-2,162 (95% CI: -24,598-20,274) higher than the PD-/DM- group, respectively. CONCLUSION: This study provides a significant contribution of PD to the increase in HCE, particularly in individuals with DM. PLAIN LANGUAGE SUMMARY: The association between periodontal disease (PD) and diabetes mellitus (DM) has commonly been described in previous literature, but the health expenditure incurred when PD and DM coexist is not clear. This study investigates the differences in health care expenditure (HCE) due to the comorbidity status of PD and DM. HCE is calculated from medical, dental, and pharmacy-dispensing expenditures from the claims data. PD was defined by periodontal pocket scores, and DM was determined based on medical records. Study participants were divided into four groups based on whether they had PD, DM, both, or neither. The results showed that people with both PD and DM had higher HCE compared with those without PD and DM. These findings may suggest the importance of cooperation between medical and dental professionals in the treatment of DM in terms of HCE.

  3. Periodontal Care Is Associated With a Lower Risk of Dialysis Initiation in Middle-Aged Patients With Type 2 Diabetes Mellitus: A 6-Year Follow-Up Cohort Study Based on a Nationwide Healthcare Database. International-journal

    Taro Kusama, Yudai Tamada, Ken Osaka, Kenji Takeuch

    Journal of clinical periodontology　52　(5)　717-726　2025/01/05

    DOI： 10.1111/jcpe.14105 　

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    OBJECTIVE: To investigate the association between dental attendance with periodontal care and the risk of dialysis initiation in patients with type 2 diabetes mellitus (T2D). METHODS: This retrospective cohort study used data from the Japan Medical Data Center (JMDC) claims database (January 2015 to August 2022). Patients with T2D, aged 40-74, were included. Dental attendance with periodontal care and initiation of dialysis were used as the exposure and outcome variables, respectively. We fitted the Cox proportional hazards model, including potential confounders, to estimate hazard ratios (HRs) and 95% confidence intervals (95%CIs). RESULTS: Among 99,273 participants (mean age = 54.4 years [SD = 7.8], male = 71.9%), the incidence rate of dialysis initiation was 0.92 per 1000 person-years. After adjusting for all covariates, those with periodontal care (HR = 0.68 [95%CI = 0.51-0.91] for ≥ 1 time/year and HR = 0.56 [95%CI = 0.41-0.77] for ≥ 1 time/6 months) had a significantly lower risk of dialysis initiation compared to those without dental attendance. CONCLUSION: Periodontal disease care in patients with T2D is associated with a reduced risk of dialysis initiation by 32%-44%. This suggests that integrating periodontal care into diabetes management may help prevent the progression of diabetic nephropathy and improve patient outcomes.

  4. Bidirectional longitudinal associations between subjective oral health and subjective well-being. International-journal

    Taro Kusama, Takamasa Komiyama, Kenji Takeuchi, Wael Sabbah, Ken Osaka, Jennifer E Gallagher

    Archives of gerontology and geriatrics　131　105740-105740　2024/12/31

    DOI： 10.1016/j.archger.2024.105740 　

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    OBJECTIVE: This study investigated the bidirectional longitudinal association between subjective oral health (SOH) and subjective well-being (SWB) over time. METHODS: This cohort study was based on a four-wave surveys conducted by the English Longitudinal Study of Aging. SOH was measured by oral impacts on daily performance (OIDP), self-rated oral health (SROH), and SWB was measured by the Center for Epidemiologic Studies-Depression (CES-D) scale, Control, Autonomy, Self-Realization, and Pleasure (CASP-19), and satisfaction with life scale (SWLS). To evaluate the bidirectional associations between SOH and SWB, separate models were created using SOH and SWB as the outcome and exposure, respectively. Additionally, the synchronous and lagged effects of exposure on outcomes were checked by employing exposures measured at different time points. A generalized estimating equation model was fitted, including the exposure variables, outcome variables in the previous wave, and baseline covariates. RESULTS: Among 4,510 participants (mean age=61.7 years [1SD=7.9], men=43.1 %), 8.1 %, 18.2 %, 14.3 %, 30.5 %, and 25.0 % had poor SOH and SWB as measured by OIDP, SROH, CES-D, CASP-19, and SWLS at baseline, respectively. The results of the regression models with all combinations of SOH and SWB measures showed that poor conditions of SOH or SWB were significantly associated with poor conditions of the other measures (all p < 0.05). In almost all combinations of SOH and SWB measures, the synchronous effect was stronger than the lagged effect. CONCLUSION: SOH and SWB are closely linked, and comprehensive care that considers oral health could contribute to well-being later in life.

  5. School-Based Fluoride Mouth-Rinse Programs and Dental Caries Treatment Expenditure: An Ecological Study of the NDB Open Data Japan. International-journal

    Daisuke Tadokoro, Kazue Honda, Taro Kusama, Kenji Takeuchi, Ken Osaka, Jun Aida

    Community dentistry and oral epidemiology　53　(2)　216-223　2024/12/25

    DOI： 10.1111/cdoe.13024 　

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    OBJECTIVES: The prevalence of dental caries is high in Japan, leading to a huge burden of overall expenditure on dental caries treatment for the population. School-based fluoride mouth-rinse (S-FMR) has been implemented as a public health intervention. However, its cost-effectiveness remains unclear, where universal health insurance covers a broad range of dental treatments at relatively low cost. The aim of the study was to determine whether S-FMR is associated with lower dental caries treatment expenditure in Japan, where the universal health insurance system widely covers dental treatments. In addition, the cost-benefit of S-FMR was estimated. METHODS: This ecological study examined the association between S-FMR coverage and dental caries treatment expenditure in all 47 prefectures of Japan. Data were obtained from the National Database of Health Insurance Claims and Specific Health Checkups of Japan open data (NDB Open Data Japan), national survey data on the prevalence of S-FMR, and other census data for each prefecture. The outcome variable was the average annual treatment expenditure of for children aged 5-14 per child. The explanatory variable was the S-FMR coverage of children per prefecture, divided into quartiles: (Q1) 0.0%-0.48%, (Q2) 0.54%-6.9%, (Q3) 7.2%-25.0% and (Q4) 26.9%-80.4%. Linear regression analysis was performed with adjustment for the number of dental clinics per 100 000 individuals, per capita prefectural income, and percentage of the population aged between 5 and 14 years. RESULTS: The dental caries treatment expenditure was lower in prefectures with higher S-FMR coverage: (Q1) 2378 JPY, (Q2) 2215 JPY, (Q3) 2217 JPY and (Q4) 2065 JPY. Linear regression analysis showed that, compared to the prefectures with the lowest S-FMR coverage, the prefectures with the highest coverage exhibited significantly lower per person dental caries treatment expenditure by 186.0 (95% CI = 96.6, 275.4) JPY. When annual cost of S-FMR per person was lower, 200 JPY, S-FMR would save 0.9 billion JPY if all prefectures change from Q1 to Q4 (approximately 8.2 million USD). CONCLUSIONS: Although public healthcare insurance in Japan covers most dental treatments at a relatively low cost, the current findings suggest that S-FMR could still be a cost-effective public health intervention.

  6. Effects of hypothetical low versus moderate-to-high intensity weight management regimens on knee replacements. International-journal

    Takahiro Miki, Upul Cooray, Masashi Kanai, Yuta Hagiwara, Masayasu Murakami, Ken Osaka, Takaaki Ikeda

    American journal of epidemiology　2024/11/28

    DOI： 10.1093/aje/kwae446 　

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    This study aimed to investigate the efficacy of a hypothetical biennial weight management regimen in reducing the necessity for knee replacement (KR) surgery among middle-aged and older adults with or at a higher risk for knee osteoarthritis (OA). Data from the Osteoarthritis Initiative cohort in the US, comprising community-dwelling adults aged 45-79 years at high risk for or with symptomatic knee OA who underwent baseline assessments from September 2008 to December 2010 were used. Subsequent evaluations were conducted at 12, 24, and 96 months. A hypothetical biennial weight management regimen, ranging from low to moderate-to-high intensity, was employed as the exposure, whereas the incidence of KR during follow-up was the outcome. This study, using a targeted learning approach to estimate hypothetical weight management regimens adjusted for time-varying confounding and attrition due to loss to follow-up, revealed that a 7.5% reduction in body mass index (high-intensity) resulted in a notable decrease in KR rates, from 5.93% [95% confidence interval (CI), 5.64-6.21] in the baseline maintenance regimen (low-intensity) to 3.60% (95% CI, 2.70-4.50) in the high-intensity regimen. In conclusion, a hypothetical weight management regimen significantly reduces the need for KR surgery in adults with knee OA.

  7. Longitudinal association between posterior occlusal contact and dementia development in a large retrospective cohort study using a Japanese claims database International-journal

    Takashi Miyano, Yudai Tamada, Taro Kusama, Ken Osaka, Kenji Takeuchi

    Scientific Reports　14　(1)　27513-27513　2024/11/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41598-024-79399-8 　

    eISSN： 2045-2322

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    This study examines the association between posterior occlusal contact and the risk of dementia development in the Japanese population, utilizing Eichner classification to evaluate occlusal status. Data from Japanese health insurance claims were analyzed for the period from April 2016 to March 2022. Participants had undergone specific health checkups, had no prior history of dementia, and were classified according to their dental occlusal contact. Dementia diagnoses were determined using ICD-10 codes, and participants were divided into three groups-A, B, and C-based on the Eichner classification, which indicates the extent of occlusal contact. Over an average follow-up period of 35.6 months, 691 dementia were identified among 931,309 participants. Those diagnosed with dementia were more likely to belong to Eichner B and C groups, signifying reduced occlusal contact. After adjusting for covariates, the hazard ratios (95% confidence intervals) for Eichner B and C were 1.73 (1.31-2.28) and 2.10 (1.35-3.26), respectively. Sensitivity analyses confirmed these findings in adults aged 60-75. These findings suggest that reduced posterior occlusal contact correlates with an increased risk of dementia. Since the study is limited to participants under the age of 75, further research is required to determine its generalizability to older populations.

  8. Associations of hypothetical early intensive in-hospital rehabilitation with activities of daily living after hip fracture surgery in patients with and without dementia: Emulating a randomized controlled trial using medical claims data International-journal

    Takaaki Ikeda, Upul Cooray, Ryutaro Matsugaki, Yuta Suzuki, Michiaki Takagi, Keiji Muramatsu, Kiyohide Fushimi, Masayasu Murakami, Ken Osaka, Shinya Matsuda

    Journal of Clinical Epidemiology　176　111550-111550　2024/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.jclinepi.2024.111550 　

    ISSN： 0895-4356

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    OBJECTIVES: To investigate the impact of early intensive in-hospital rehabilitation, initiated within 2 days of surgery and lasting up to 7 days, on the recovery of activities of daily living in patients with and without dementia. STUDY DESIGN AND SETTING: Medical claims data from 925 hospitals in Japan were analyzed. We enrolled patients aged ≥50 years who underwent hip fracture surgery within 2 days of admission between April 1, 2018, and December 31, 2019. Low- (20 minutes per day starting on day 2), highest- (60 minutes per day starting on day 1), and gradually increasing (20 minutes on day 1, 40 minutes on days 2-4, and 60 minutes per day thereafter) intensity regimens were used as exposures. The outcomes were Barthel Index (BI) scores at 14 and 30 days postoperatively. For per-protocol analysis, a target trial emulation framework with the sequential doubly robust estimator was used. RESULTS: Among patients without dementia (N = 11,461), no significant differences in BI scores were observed at 14 days postoperatively across regimens. At 30 days postoperatively, significant differences in BI scores were noted between highest- and low-intensity regimens and between gradually increasing intensity and low-intensity regimens, with additive BI scores of 15.2 (95% CI, 10.7-19.7) and 14.7 (95% CI, 9.2-20.2), respectively. In patients with dementia (N = 14,302), significant differences in BI scores were noted at 14 days postoperatively between highest- and low-intensity regimens and between gradually increasing intensity and low-intensity regimens, with additive BI scores of 8.7 (95% CI, 5.2-12.2) and 10.7 (95% CI, 5.8-15.6), respectively. At 30 days postoperatively, a significant difference in BI scores was observed between gradually increasing intensity and low-intensity regimens, with an additive BI score of 17.9 (95% CI, 11.3-24.5). CONCLUSION: Early intensive in-hospital rehabilitation is highly relevant and beneficial for dementia patients.

  9. Public Periodontal Screening Increases Subsequent Regular Dental Visits: The Life Study Peer-reviewed

    Y. Tamada, T. Kusama, M. Maeda, F. Murata, K. Osaka, H. Fukuda, K. Takeuchi

    JDR Clinical & Translational Research　2024/09/25

    Publisher: SAGE Publications

    DOI： 10.1177/23800844241275859 　

    ISSN： 2380-0844

    eISSN： 2380-0852

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    Introduction: A public oral health screening, periodontal disease screening, has been implemented in Japan, but it remains unclear whether screening encourages subsequent regular dental visits. This study aimed to examine whether people who underwent periodontal disease screening were more likely to regularly visit dentists after undergoing the screening than before using a difference-in-differences (DID) approach. Methods: This study used health care claims data of municipality residents who underwent periodontal disease screening in 2017 or 2018. For each screening recipient, 4 individuals were extracted from those who did not undergo screening as controls. In the DID analysis, we assessed the change in the proportion of dentist visits at least once every 180 d after undergoing screening. Results: A total of 4,050 participants were included in the analysis. The proportion of participants visiting dentists was consistent throughout the study period (approximately 45%) among the participants who did not undergo the screening. However, among the participants who underwent the screening, while the proportion who visited dentists was consistent before screening (approximately 60%), the proportion was higher after screening (1–180 d after, 81.2%). DID analysis indicated that the proportion increased by 12.9% after the screening. In addition, the age-subgroup DID estimates were higher in the younger population (aged 20–35 y, 13.9%; 40–55 y, 12.8%; 60 y, 12.6%). Conclusions: Among people who underwent periodontal disease screening, a higher proportion visited dentists after undergoing the screening than before, suggesting that periodontal disease screening was associated with an increase in subsequent regular dental visits. Knowledge Transfer Statement: Our results provide evidence that a public oral health screening could increase regular dental visits, which has the potential to improve and maintain people’s oral health, especially in the younger population.

  10. Number of Teeth and Dementia-free Life Expectancy: A 10-Year Follow-Up Study From the Japan Gerontological Evaluation Study. International-journal

    Sakura Kiuchi, Yusuke Matsuyama, Kenji Takeuchi, Taro Kusama, Upul Cooray, Ken Osaka, Jun Aida

    Journal of the American Medical Directors Association　25　(11)　105258-105258　2024/09/11

    DOI： 10.1016/j.jamda.2024.105258 　

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    OBJECTIVES: Previous studies have reported that tooth loss is associated with an increased risk of dementia; however, few have explored the association between number of teeth and dementia-free and total life expectancies. We investigated whether having more teeth is associated with longer dementia-free and total life expectancies. DESIGN: A 10-year follow-up prospective cohort study from 2010 to 2020. SETTING AND PARTICIPANTS: Functionally independent older adults aged ≥65 years living in 9 municipalities in Japan. METHODS: The exposure was the number of teeth (≥20, 10-19, 1-9, and 0). Dementia onset and mortality within the 10-year follow-up were used as the outcome. Dementia-free and total life expectancies according to the number of teeth were derived from multistate modeling estimates. RESULTS: A total of 44,083 participants were included (men: 46.8%). The mean age was 73.7 years (standard deviation [SD] = 6.0). During follow-up, 17.3% and 21.4% of the participants experienced the onset of dementia and death, respectively. Having fewer teeth was associated with dementia (hazard ratio [HR], 1.14; 95% confidence interval [CI], 1.07-1.22, 10-19 teeth; HR, 1.15; 95% CI, 1.08-1.22, 1-9 teeth; HR, 1.13; 95% CI, 1.05-1.21, 0 teeth) and death (HR, 1.13; 95% CI, 1.05-1.22, 10-19 teeth; HR, 1.27; 95% CI, 1.19-1.37, 1-9 teeth; HR, 1.47; 95% CI, 1.36-1.59, 0 teeth) compared with having ≥20 teeth. Dementia-free life expectancies at the age of 65 years were 16.43 years and 18.88 years with ≥20 teeth, and 14.40 years and 17.12 years with 0 teeth for men and women, respectively. The total life expectancies at the age of 65 were 17.84 years and 22.03 years with ≥20 teeth, and 15.42 years and 19.79 years with 0 teeth for men and women, respectively. CONCLUSIONS AND IMPLICATIONS: Having more teeth was associated with longer dementia-free and total life expectancies.

  11. Detection of oral cancer and oral potentially malignant disorders using artificial intelligence-based image analysis. International-journal

    Atsumu Kouketsu, Chiaki Doi, Hiroaki Tanaka, Takashi Araki, Rina Nakayama, Tsuguyoshi Toyooka, Satoshi Hiyama, Masahiro Iikubo, Ken Osaka, Keiichi Sasaki, Hirokazu Nagai, Tsuyoshi Sugiura, Kensuke Yamauchi, Kanako Kuroda, Yuta Yanagisawa, Hitoshi Miyashita, Tomonari Kajita, Ryosuke Iwama, Tsuyoshi Kurobane, Tetsu Takahashi

    Head & neck　46　(9)　2253-2260　2024/09

    DOI： 10.1002/hed.27843 　

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    BACKGROUND: We aimed to construct an artificial intelligence-based model for detecting oral cancer and dysplastic leukoplakia using oral cavity images captured with a single-lens reflex camera. SUBJECTS AND METHODS: We used 1043 images of lesions from 424 patients with oral squamous cell carcinoma (OSCC), leukoplakia, and other oral mucosal diseases. An object detection model was constructed using a Single Shot Multibox Detector to detect oral diseases and their locations using images. The model was trained using 523 images of oral cancer, and its performance was evaluated using images of oral cancer (n = 66), leukoplakia (n = 49), and other oral diseases (n = 405). RESULTS: For the detection of only OSCC versus OSCC and leukoplakia, the model demonstrated a sensitivity of 93.9% versus 83.7%, a negative predictive value of 98.8% versus 94.5%, and a specificity of 81.2% versus 81.2%. CONCLUSIONS: Our proposed model is a potential diagnostic tool for oral diseases.

  12. Differences in cumulative long-term care costs by dental visit pattern among Japanese older adults: the JAGES cohort study. International-journal

    Sakura Kiuchi, Kenji Takeuchi, Masashige Saito, Taro Kusama, Noriko Nakazawa, Kinya Fujita, Katsunori Kondo, Jun Aida, Ken Osaka

    The journals of gerontology. Series A, Biological sciences and medical sciences　79　(9)　2024/08/05

    DOI： 10.1093/gerona/glae194 　

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    BACKGROUND: Long-term care (LTC) costs create burdens on aging societies. Maintaining oral health through dental visits may result in shorter LTC periods, thereby decreasing LTC costs; however, this remains unverified. We examined whether dental visits in the past 6 months were associated with cumulative LTC insurance (LTCI) costs. METHODS: This cohort study of the Japan Gerontological Evaluation Study targeted independent adults aged ≥65 years in 2010 over an eight-year follow-up. We used data from a self-reported questionnaire and LTCI records from the municipalities. The outcome was cumulative LTCI costs, and exposure was dental visits within 6 months for prevention, treatment, and prevention or treatment. A two-part model was used to estimate the differences in the predicted cumulative LTCI costs and 95% confidence intervals (CIs) for each dental visit. RESULTS: The mean age of the 8,429 participants was 73.7 years (standard deviation [SD]=6.0), and 46.1% were men. During the follow-up period, 17.6% started using LTCI services. The mean cumulative LTCI cost was USD 4877.0 (SD=19082.1). The predicted cumulative LTCI costs were lower among those had dental visits than among those who did not. The differences in predicted cumulative LTCI cost were -USD 1089.9 (95%CI = -1,888.5 - -291.2) for dental preventive visits, -USD 806.7 (95%CI = -1,647.4 - 34.0) for treatment visits, and -USD 980.6 (95%CI = -1,835.7 - -125.5) for preventive or treatment visits. CONCLUSIONS: Dental visits, particularly preventive visits, were associated with lower cumulative LTCI costs. Maintaining oral health through dental visits may effectively reduce the LTCI costs.

  13. A principal component analysis of metabolome and cognitive decline among Japanese older adults: cross-sectional analysis using Tohoku Medical Megabank Cohort Study.

    Sakura Kiuchi, Kumi Nakaya, Upul Cooray, Kenji Takeuchi, Ikuko N Motoike, Naoki Nakaya, Yasuyuki Taki, Seizo Koshiba, Shunji Mugikura, Ken Osaka, Atsushi Hozawa

    Journal of epidemiology　35　(1)　39-46　2024/07/06

    DOI： 10.2188/jea.JE20240099 　

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    BackgroundDementia is the leading cause of disability and imposes a significant burden on society. Previous studies have suggested an association between metabolites and cognitive decline. Although the metabolite composition differs between Western and Asian populations, studies targeting Asian populations remain scarce.MethodsThis cross-sectional study used data from a cohort survey of community-dwelling older adults aged ≥ 60 years living in Miyagi, Japan, conducted by Tohoku Medical Megabank Organization between 2013 and 2016. Forty-three metabolite variables quantified using nuclear magnetic resonance spectroscopy were used as explanatory variables. Dependent variable was the presence of cognitive decline (≤ 23 points), assessed by the Mini-Mental State Examination. Principal component (PC) analysis was performed to reduce the dimensionality of metabolite variables, followed by logistic regression analysis to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for cognitive decline.ResultsA total of 2,940 participants were included (men: 49.0%, mean age: 67.6 years). Among them, 1.9% showed cognitive decline. The first 12 PC components (PC1-PC12) accounted for 71.7% of the total variance. Multivariate analysis showed that PC1, which mainly represented essential amino acids, was associated with lower odds of cognitive decline (OR = 0.89; 95% CI, 0.80-0.98). PC2, which mainly included ketone bodies, was associated with cognitive decline (OR = 1.29; 95% CI, 1.11-1.51). PC3, which included amino acids, was associated with lower odds of cognitive decline (OR = 0.81; 95% CI, 0.66-0.99).ConclusionAmino acids are protectively associated with cognitive decline, whereas ketone metabolites are associated with higher odds of cognitive decline.

  14. Association between Number of Teeth and Eating out of Home: A 2019 Statistical Survey of the Japanese Representative Population. International-journal

    Anna Kinugawa, Takafumi Yamamoto, Taro Kusama, Kenji Takeuchi, Ken Osaka

    Nutrients　16　(13)　2024/07/01

    DOI： 10.3390/nu16132102 　

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    Eating out of home (EOH), with its diverse food options, can benefit those with difficulty preparing their meals, especially older adults. Oral health status may be a determinant of EOH, as food accessibility is influenced by oral health, but this association remains unclear. This cross-sectional study used merged data from two national statistical surveys conducted in 2019. Participants were individuals aged ≥ 65 years who responded to both surveys. The frequency of EOH (<once/week or ≥once/week) was the dependent variable. The number of teeth was used as the independent variable (≥20, 10-19, 1-9, and 0). Prevalence ratios (PRs) and 95% confidence intervals (CIs) were calculated using multivariate Poisson regression analysis to identify the association between EOH and the number of teeth, adjusting for possible confounders. We analyzed 2164 participants (mean age = 74.0, women 52.4%). Of these, 456 (21.1%) participants were EOH ≥ once/week; 1142 (52.8%) participants had ≥20 teeth. Compared to those with ≥20 teeth, those with <20 teeth had a lower prevalence of EOH ≥ once/week (10-19: PR = 0.89, 95% CI = 0.72-1.09, 1-9: PR = 0.67, 95% CI = 0.51-0.89, and 0: PR = 0.53, 95% CI = 0.36-0.77, respectively). We observed an association between fewer teeth and a lower frequency of EOH.

  15. Childhood socioeconomic status affects dental pain in later life Peer-reviewed

    Yamamoto T, Cooray U, Kusama T, Kiuchi S, Abbas H, Kondo K, Osaka K, Aida J

    Journal of Dental Research Clinical & Translational Research　2024/06

    DOI： 10.1177/23800844241271740 　

  16. Changes in the utilization of outpatient and visiting dental care and per-attendance care cost by age groups during COVID-19 pandemic waves in Japan: A time-series analysis from LIFE study.

    Taro Kusama, Yudai Tamada, Megumi Maeda, Fumiko Murata, Ken Osaka, Haruhisa Fukuda, Kenji Takeuchi

    Journal of epidemiology　34　(11)　553-559　2024/04/06

    DOI： 10.2188/jea.JE20230323 　

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    BACKGROUND: The influence of the coronavirus disease (COVID-19) pandemic on dental care utilization may have differed according to individual characteristics or type of dental care provision. This study aimed to evaluate the changes in dental care utilization and per-attendance costs by age group and type of dental care during the COVID-19 pandemic in Japan. METHODS: This time-series study used healthcare insurance claims data from 01/07/2019 to 09/27/2021 (143 weeks) from nine municipalities in Japan. Dental care utilization rate per week and average dental care cost per attendance by age groups (0-19y/20-64y/65-74y/≥ 75y) and types of dental care (outpatient/visiting) were used as outcome variables. COVID-19 pandemic waves in Japan were used as predictors: 1st (03/23/2020-05/17/2020), 2nd (06/22/2020-09/27/2020), 3rd (10/26/2020-02/21/2021), 4th (02/22/2021-06/07/2021), and 5th (07/05/2021-09/13/2021) waves. Fixed effect models were employed to estimate the proportional changes. RESULTS: In the fixed effect model, we observed large declines in dental care utilization during the 1st (17.0-22.0%) and 2nd waves (3.0-13.0%) compared to the non-pandemic wave period in all age groups. In contrast, the average dental care cost per attendance increased in all age groups by 5.2-8.6% during the 1st wave. CONCLUSIONS: During the initial wave of the COVID-19 pandemic in Japan, dental care utilization decreased in all age groups, whereas the average dental care cost per attendance increased. The COVID-19 pandemic may have changed the dental care provision pattern towards less frequent and more concentrated dental care to avoid the risk of infection.

  17. The association between objective and subjective oral health conditions and the presence of anorexia of aging among Japanese older Adults1. International-journal

    Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Jun Aida, Ken Osaka

    Appetite　198　107332-107332　2024/04/04

    DOI： 10.1016/j.appet.2024.107332 　

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    Anorexia of aging is a risk factor for malnutrition among older adults. This study aimed to evaluate the association between objective and subjective oral health and anorexia among independent older adults. This cross-sectional study targeted independent older adults aged ≥65 years who participated in the Japan Gerontological Evaluation Study conducted in 2022. The outcome variable was the presence of anorexia, as assessed by the Simplified Nutritional Appetite Questionnaire. Exposure variables were dental status (≥20 teeth, 10-19 teeth with/without dentures, and 0-9 teeth with/without dentures) as objective oral health and oral health-related quality of life measured by five items of the short version of the Oral Impacts on Daily Performances (OIDP) (eating, speaking, smiling, emotional stability, and enjoying with others) as subjective oral health. We fitted the Poisson regression model, including possible confounders, and estimated prevalence ratios (PRs) and 95% confidence intervals. Among 19,787 participants (mean age: 74.6 years [1SD = 6.2], male: 48.5%), 9.0% were classified as having anorexia. After adjusting possible confounders, those with ≤19 teeth had a higher proportion of experiencing anorexia compared to those with ≥20 teeth; however, the association was less pronounced among those with dentures (0-9 teeth with dentures: PR = 1.48 [1.31-1.68], and 0-9 teeth without dentures: PR = 2.08 [1.65-2.63]). Even after adjusting for dental status, each item of OIDP was significantly associated with the presence of anorexia (all p < 0.05). The results showed that both objective and subjective poor oral health were significantly associated with a higher probability of developing anorexia of aging. Therefore, improving both objective and subjective oral health through appropriate dental care could contribute to maintaining appetite in later life.

  18. Dental prosthesis use moderates association between tooth loss and risk of depressive symptoms in older adults with severe tooth loss: The JAGES cohort trial.

    Noriko Nakazawa, Kenji Takeuchi, Taro Kusama, Sakura Kiuchi, Katsunori Kondo, Ken Osaka

    Journal of prosthodontic research　68　(4)　578-584　2024/03/13

    DOI： 10.2186/jpr.JPR_D_23_00046 　

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    PURPOSE: Depression is a leading cause of disability. Although tooth loss increases the risk of depressive symptoms, it is unclear whether dental prosthesis use moderates this risk. This study aimed to investigate whether dental prosthesis use moderates the association between tooth loss and new depressive symptoms in older adults. METHODS: This cohort study used data from the 2016 and 2019 Japan Gerontological Evaluation Study (JAGES). The participants were independent older adults aged ≥65 years without depressive symptoms in 2016. The onset of depressive symptoms in 2019 was the outcome variable. The explanatory variables were dental status (≥20 teeth, 10-19 teeth with or without dental prostheses, and 0-9 teeth with or without dental prostheses) in 2016. Risk ratios (RRs) and 95% confidence intervals (CIs) were estimated using Poisson regression models with potential confounders as covariates. RESULTS: The analysis included 50,169 participants (mean age: 72.8 [standard deviation, 5.4] years). During follow-up, the incidence of depressive symptoms was 11.3%. Compared to those who had ≥20 teeth, the RR of depressive symptom onset was highest among those who had 0-9 teeth without dental prostheses (RR, 1.27; 95% CI, 1.04-1.56), after the adjustment for confounders. However, this risk was lower in those with 0-9 teeth and dental prostheses (RR, 1.08; 95% CI, 1.01-1.15). CONCLUSIONS: These data highlight the potential of dental prostheses as an important factor in reducing the risk of depressive symptoms among individuals with severe tooth loss.

  19. 新型コロナウイルス2価ワクチン有効性の経時的変化 VENUS Study

    玉田 雄大, 塩田 千尋, 竹内 研時, 小坂 健, 前田 恵, 村田 典子, 福田 治久

    日本衛生学雑誌　79　(Suppl.)　S225-S225　2024/03

    Publisher: (一社)日本衛生学会

    ISSN： 0021-5082

    eISSN： 1882-6482

  20. 支持政党と新型コロナワクチン接種に対する忌避との関連 JASTIS2022横断研究

    草間 太郎, 玉田 雄大, 塩田 千尋, 竹内 研時, 小坂 健, 田淵 貴大

    日本衛生学雑誌　79　(Suppl.)　S225-S225　2024/03

    Publisher: (一社)日本衛生学会

    ISSN： 0021-5082

    eISSN： 1882-6482

  21. Differences in prevalence of self-reported oral hypofunction between older adult patients with rheumatoid arthritis and the general older population: A cross-sectional study using propensity score matching. International-journal

    Yoko Kudo, Kenji Takeuchi, Taro Kusama, Toshihisa Kojima, Yuko Waguri-Nagaya, Mako Nagayoshi, Katsunori Kondo, Kentaro Mizuta, Ken Osaka, Masayo Kojima

    Journal of oral rehabilitation　51　(6)　924-930　2024/02/14

    DOI： 10.1111/joor.13658 　

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    OBJECTIVE: To examine the association between rheumatoid arthritis (RA) and oral hypofunction (OHF) using propensity score matching (PSM) to adjust for differences between older adults with RA and the general older adult population. METHODS: We conducted a cross-sectional survey among 189 older adults with RA in 2019 (mean age, 71.9 ± 3.6) and 47 178 independent older adult residents in 2016 (mean age, 71.6 ± 4.0), respectively. The questionnaire covered information on socio-demographic characteristics and OHF for both groups. Age, sex, educational level and smoking history were used to determine PSM. Prevalence ratios (PRs) and 95% confidence intervals (CIs) of self-reported OHF (fewer remaining teeth, decreased masticatory function, deterioration of swallowing function and oral dryness) were estimated using Poisson regressions. RESULT: OHF was observed in 44.4% of patients with RA and 27.5% of residents. Before PSM, the prevalence of OHF among patients with RA was higher than that of residents (PR, 1.75; 95% CI, 1.50-2.05). After PSM, there were 189 patients with RA and residents, and the prevalence of OHF among patients with RA was still higher (PR, 1.61; 95% CI, 1.22-2.13). Poisson regression showed that the prevalence of 19 or fewer teeth (PR, 1.06; 95% CI, 0.82-1.36), difficulties eating tough foods (PR, 1.18; 95% CI, 0.90-1.55), difficulties swallowing tea or soup (PR, 1.77; 95% CI, 1.19-2.63), and dry mouth (PR, 2.79; 95% CI, 1.90-4.07) was higher among patients with RA than residents. CONCLUSION: Compared with the general older adult population, patients with RA have a higher prevalence of self-reported OHF.

  22. Tooth loss mediates the association between smoking and an increased risk of dementia among older adults: The <scp>JAGES</scp> prospective cohort study International-journal

    Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Yudai Tamada, Takahiro Tabuchi, Ken Osaka

    Journal of Clinical Periodontology　51　(12)　1610-1618　2024/02/07

    Publisher: Wiley

    DOI： 10.1111/jcpe.13959 　

    ISSN： 0303-6979

    eISSN： 1600-051X

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    Abstract Aim Tooth loss has various causes; however, its cause‐specific effects on health outcomes remain unclear. This study evaluated whether the association between past/current smoking and risk of dementia was mediated by tooth loss. Materials and Methods This 9‐year‐follow‐up prospective cohort study targeted adults aged ≥65 years. Dementia incidence during 2013–2019, smoking status (never, past/current) in 2010 and the number of remaining teeth (≤19, ≥20) in 2013 were the outcome, exposure and mediator, respectively. We used causal mediation analysis to fit the Cox proportional hazards model and estimated the hazard ratio (HR) and 95% confidence interval (CI) of the natural indirect effect (NIE) of smoking on dementia incidence through tooth loss and their mediated proportions. Results Among 32,986 participants (mean age 72.6 years [1 SD = 5.4]; men 48.4%), the dementia incidence during follow‐up was 2.11/100 person‐years. Tooth loss significantly mediated the association between past/current smoking and dementia incidence; the NIE of fewer remaining teeth for past/current smokers compared to never smokers was HR = 1.03 (95% CI: 1.02–1.05), and the mediated proportion was 18.0%. Conclusions Tooth loss significantly mediates the association between past/current smoking and an increased risk of dementia among older adults.

  23. Bivalent mRNA vaccine effectiveness against COVID-19 among older adults in Japan: a test-negative study from the VENUS study International-journal

    Yudai Tamada, Kenji Takeuchi, Taro Kusama, Megumi Maeda, Fumiko Murata, Ken Osaka, Haruhisa Fukuda

    BMC Infectious Diseases　24　(1)　135-135　2024/01/29

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1186/s12879-024-09035-3 　

    eISSN： 1471-2334

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    Abstract Background Bivalent COVID-19 vaccines have been implemented worldwide since the booster vaccination campaigns of autumn of 2022, but little is known about their effectiveness. Thus, this study holistically evaluated the effectiveness of bivalent vaccines against infection in older adults in Japan. Methods We adopted the test-negative design using COVID-19 test data of individuals, aged ≥ 65 years, residing in three municipalities in Japan, who underwent tests in medical institutions between October 1 and December 30, 2022. Logistic regression analyses were conducted to estimate the odds of testing positive according to vaccination status. Vaccine effectiveness was defined as (1 − odds ratio) × 100%. Results A total of 3,908 positive and 16,090 negative results were included in the analyses. Receiving a bivalent dose in addition to ≥ 2 monovalent doses was 33.6% (95% confidence interval [CI]: 20.8, 44.3%) more effective than receiving no vaccination, and 18.2% (95% CI: 9.4, 26.0%) more effective than receiving ≥ 2 monovalent doses but not receiving a bivalent vaccination. In addition, the effectiveness peaked at 14–20 days after administration and then gradually declined over time. Furthermore, a bivalent booster dose provided 18.6% (95% CI: 9.9, 26.5%) additional protection among those vaccinated with ≥ 2 monovalent doses, in the absence of a previous infection history. However, we did not find sufficient evidence of effectiveness of bivalent vaccines among previously infected older adults. Conclusions Bivalent vaccines are effective against COVID-19 infections among older adults without a history of infection.

  24. Correlates of COVID-19 conspiracy theory beliefs in Japan: A cross-sectional study of 28,175 residents. International-journal

    Yukihiro Sato, Ichiro Kawachi, Yasuaki Saijo, Eiji Yoshioka, Ken Osaka, Takahiro Tabuchi

    PloS one　19　(12)　e0310673　2024

    DOI： 10.1371/journal.pone.0310673 　

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    BACKGROUND: The COVID-19 pandemic was associated with an increase in conspiracy theories worldwide. However, in Japan, the prevalence of COVID-19 conspiracy beliefs has remained unclear. This study aimed to estimate the prevalence and correlates of COVID-19 conspiracy beliefs using a survey of 28,175 residents of Japan aged 16-81 years old. METHODS: A cross-sectional self-administered survey was conducted from September to October 2021. To assess the number of COVID-19 conspiracy beliefs, we used three questions from the Oxford Coronavirus Explanations, Attitudes, and Narratives Survey. Independent variables included general vaccine conspiracy beliefs, sociodemographic variables, information sources for COVID-19, trust in authorities, and fear of COVID-19. RESULTS: After applying sampling weights and imputation, the estimated prevalence of holding at least one COVID-19 conspiracy belief was 24.4%. From a linear regression model, several factors were independently associated with conspiracy beliefs. Notably, people with the lowest level of education (lower secondary school) endorsed fewer COVID-19 conspiracy beliefs (B -0.089, vs. upper secondary school). Furthermore, higher socioeconomic backgrounds-such as higher income, higher wealth, and regular employment-were associated with endorsing conspiracy beliefs. Only 37.3% of respondents trusted the government of Japan, but paradoxically, trust in the government was positively associated with conspiracy beliefs (B 0.175, vs. distrust). CONCLUSIONS: COVID-19 conspiracy beliefs can be prevalent in about a quarter of the residents of Japan. Certain groups are more likely to endorse conspiracy beliefs, and targeting interventions towards these groups might be efficient in stemming the spread of conspiracy beliefs.

  25. Validity of claims-based definition of number of remaining teeth in Japan: Results from the Longevity Improvement and Fair Evidence Study. International-journal

    Yudai Tamada, Taro Kusama, Sachiko Ono, Megumi Maeda, Fumiko Murata, Ken Osaka, Haruhisa Fukuda, Kenji Takeuchi

    PloS one　19　(5)　e0299849　2024

    DOI： 10.1371/journal.pone.0299849 　

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    BACKGROUND: Secondary healthcare data use has been increasing in the dental research field. The validity of the number of remaining teeth assessed from Japanese dental claims data has been reported in several studies, but has not been tested in the general population in Japan. OBJECTIVES: To evaluate the validity of the number of remaining teeth assessed from Japanese dental claims data and assess its predictability against subsequent health deterioration. METHODS: We used the claims data of residents of a municipality that implemented oral health screening programs. Using the number of teeth in the screening records as the reference standard, we assessed the validity of the claims-based number of teeth by calculating the mean differences. In addition, we assessed the association between the claims-based number of teeth and pneumococcal disease (PD) or Alzheimer's disease (AD) in adults aged ≥65 years using Cox proportional hazards analyses. RESULTS: Of the 10,154 participants, the mean number of teeth assessed from the claims data was 20.9, that in the screening records was 20.5, and their mean difference was 0.5. During the 3-year follow-up, PD or AD onset was observed in 10.4% (3,212/30,838) and 5.3% (1,589/30,207) of participants, respectively. Compared with participants with ≥20 teeth, those with 1-9 teeth had a 1.29 (95% confidence interval [CI]: 1.17-1.43) or 1.19 (95% CI: 1.04-1.36) times higher risk of developing PD or AD, respectively. CONCLUSION: High validity of the claims-based number of teeth was observed. In addition, the claims-based number of teeth was associated with the risk of PD and AD.

  26. Poor oral health and dementia risk under time-varying confounding: A cohort study based on marginal structural models. International-journal

    Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Jun Aida, Ken Osaka

    Journal of the American Geriatrics Society　72　(3)　729-741　2023/12/08

    DOI： 10.1111/jgs.18707 　

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    BACKGROUND: Bidirectional association between oral health, including tooth loss and oral hypofunction, and cognitive impairment can induce time-varying confounding in association with dementia. This study aimed to investigate the association between oral health and the development of dementia among older adults, considering cognitive impairment as a time-varying confounder. METHODS: This nine-year follow-up cohort study targeted independent older adults aged ≥65 years who participated in the Japan Gerontological Evaluation Study. The exposure variables were self-reported poor oral health (≤19 remaining teeth, edentulousness, chewing difficulty, swallowing problems, and xerostomia), which were assessed in 2010 and 2013. The outcome variable was the incidence of dementia between 2013 and 2019, which was obtained from the municipalities' administrative database. Furthermore, in 2010 and 2013, we considered cognitive impairment as a time-varying confounder and treated it based on a marginal structural model (MSM), including possible baseline confounders. Oral health and cognitive impairment were assessed using the items of Kihon checklist. We employed a Cox proportional hazards model with a stabilized inverse probability weight and estimated hazard ratios (HRs) and 95% confidence intervals (CIs). RESULTS: Among 37,556 participants (mean age: 72.8 years [1 SD = 5.5], males: 46.8%), the dementia incidence rate was 2.2/100 person-year. The proportions of those with ≤19 remaining teeth, edentulousness, chewing difficulty, swallowing problems, and xerostomia were 61.3%, 11.0%, 24.4%, 14.7%, and 19.2%, respectively. From the regression analysis based on MSM, ≤19 remaining teeth (HR = 1.12, 95% CI = 1.03-1.23), edentulousness (HR = 1.20, 95% CI = 1.09-1.32), chewing difficulty (HR = 1.11, 95% CI = 1.02-1.21), and xerostomia (HR = 1.10, 95% CI = 1.01-1.20) were significantly associated with an increased risk of dementia; however, swallowing problems were not significantly associated with dementia onset (p > 0.05). CONCLUSIONS: Even after considering time-varying confounding by cognitive function at baseline and follow-up, we observed significant associations between poor oral health and increased risk of dementia among older adults.

  27. Does online communication mitigate the association between a decrease in face-to-face communication and laughter during the COVID-19 pandemic? A cross-sectional study from JACSIS study. International-journal

    Sakura Kiuchi, Kenji Takeuchi, Taro Kusama, Upul Cooray, Yudai Tamada, Ken Osaka, Takahiro Tabuchi

    Preventive medicine reports　36　102432-102432　2023/12

    DOI： 10.1016/j.pmedr.2023.102432 　

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    Laughter has a protective effect on human health. The spread of coronavirus disease 2019 (COVID-19) has changed opportunities for face-to-face communication and might decrease opportunities for laughter. This cross-sectional study aimed to investigate whether the decrease in face-to-face communication during the COVID-19 pandemic is associated with a decrease in laughter. Additionally, we investigated whether an increase in online communication mitigates this association. Data from the "Japan COVID-19 and Society Internet Survey (JACSIS)," conducted between August and September 2020, were used. Participants aged 15-79 years were included in this study. The outcome was a decrease in laughter before the onset of the COVID-19 pandemic. The explanatory variables were decreased face-to-face communication with friends and increased online communication (text message, telephone, and video contact). Causal mediation analysis was used to calculate prevalence ratios (PRs) and 95 % confidence intervals (CIs) of the controlled direct effects of increased online communication. Furthermore, the proportions eliminated (PEs) by an increase in online communication were calculated. Among the 25,482 participants, 40.4 % had decreased face-to-face communication and 21.4 % had a decreased frequency of laughter. After adjusting for confounders, a decrease in face-to-face communication was significantly associated with a decrease in laughter (PR = 1.62, 95 %CI = 1.55-1.70). PEs for decrease in laughter were 27.2 % (95 %CI = -2.0 to 56.4) for text-based communication, 36.1 % (95 %CI = 12.3-59.8) for telephone-based communication, and 28.6 % (95 %CI = 0.6-56.6) for video-based communication. Although a decrease in face-to-face communication was associated with a decrease in laughter during the COVID-19 pandemic, online communication, particularly telephone-based communication, mitigated this association.

  28. Oral Hypofunction and Risk of Weight Change among Independent Older Adults. International-journal

    Chihiro Shiota, Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Ken Osaka

    Nutrients　15　(20)　2023/10/15

    DOI： 10.3390/nu15204370 　

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    Oral health is essential for nutritional status; however, little is known about its association with weight change. This study aimed to investigate whether the risk of weight change differs according to the presence of each important component of oral hypofunction (fewer remaining teeth, low chewing efficiency, swallowing problems, and xerostomia) among independent older adults. This was a three-year follow-up cohort study based on self-reported questionnaires. The participants were independent older adults aged ≥65 from the Japan Gerontological Evaluation Study (JAGES). We used >5% weight loss/gain during follow-up as the outcome variables, and the number of remaining teeth (≥20/10-19/0-9), the presence of chewing difficulty, swallowing problems, and xerostomia (yes/no) as the exposure variables. We fitted the Poisson regression model, including possible confounders to estimate the risk ratios (RRs) and 95% confidence intervals (CIs). For weight loss, RRs were significantly higher among those with 0-9 remaining teeth (RR = 1.17; 95% CI = 1.11-1.23), chewing difficulty (RR = 1.12; 95% CI = 1.07-1.16), and xerostomia (RR = 1.11; 95% CI = 1.06-1.16), but there was no significant association with swallowing problems (RR = 1.01; 95% CI = 0.97-1.06). For weight gain, we also found similar associations with oral hypofunction. Oral hypofunction among older adults could have non-negligible health impacts on nutritional status.

  29. Reduced number of teeth with and without dental prostheses and low frequency of laughter in older adults: Mediation by poor oral function.

    Yudai Tamada, Kenji Takeuchi, Taro Kusama, Masashige Saito, Tetsuya Ohira, Kokoro Shirai, Chikae Yamaguchi, Katsunori Kondo, Jun Aida, Ken Osaka

    Journal of prosthodontic research　68　(3)　441-448　2023/10/05

    DOI： 10.2186/jpr.JPR_D_23_00071 　

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    PURPOSE: Laughter is expected to have health-protective effects, but the potential link between tooth loss and laughter remains unclear. Therefore, this study aimed to examine the association between tooth loss and a low frequency of laughter among older adults in Japan, to elucidate whether this association could be mitigated by dental prostheses, and to evaluate the magnitude of the association mediated by poor oral function. METHODS: We used cross-sectional data from 157,708 functionally independent participants aged ≥65 years (46.3% male) from the Japan Gerontological Evaluation Study. A modified Poisson regression model was applied to examine the association between the number of remaining teeth (≥20/10-19/0-9), dental prostheses use, and infrequent laughter (i.e., laughing never or almost never). Causal mediation analysis was performed to assess whether the association was mediated by difficulties in eating hard foods, choking, or dry mouth. RESULTS: Among the participants, 9,129 reported infrequent laughter. Participants with ≤9 and 10-19 teeth who did not use dental prostheses had a 1.29 and 1.14 times higher likelihood of infrequent laughter than those with ≥20 teeth, respectively. Furthermore, difficulty eating hard foods, choking, and dry mouth mediated 22.8%, 0.4%, and 4.3% of the association between fewer remaining teeth and infrequent laughter, respectively. Meanwhile, we did not find evidence for the differences in infrequent laughter between participants with ≤19 teeth using dental prostheses and those with ≥20 teeth. CONCLUSIONS: Tooth loss among individuals without dental prostheses was associated with infrequent laughter, and this association was mediated by poor oral function.

  30. Association between dietary pattern and insomnia symptoms among independent older adults: A cross-sectional study based on JAGES. International-journal

    Anna Kinugawa, Taro Kusama, Kenji Takeuchi, Jun Aida, Sakura Kiuchi, Ryoko Katagiri, Hiroyuki Hikichi, Satoshi Sasaki, Katsunori Kondo, Ken Osaka

    Sleep medicine　112　70-76　2023/10/02

    DOI： 10.1016/j.sleep.2023.09.027 　

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    BACKGROUND: Poor diet can cause sleep disorders; however, this association has not been established in older populations. This study investigated the association between dietary patterns and insomnia symptoms in independent older adults. METHODS: This cross-sectional study targeted independent older Japanese adults aged ≥74 years. We used insomnia symptoms classified into three domains: difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), and insomnia. These symptoms were assessed as dependent variables by a self-reported questionnaire. Dietary patterns (DP), identified by principal component analysis of a self-administered diet history questionnaire, were used as independent variables. Poisson regression analysis was used to estimate the prevalence ratios and 95% confidence intervals with adjustment for potential confounders. RESULTS: Among 1,311 participants (mean age = 80.1; women, 48.5%), we identified three dietary patterns: DP1 was characterized by a high intake of vegetables, soy products, and fruits and a low intake of rice; DP2 was characterized by a high intake of fish, chicken, processed meat, and noodles and a low intake of soy products; and DP3 was characterized by a lower intake of fruits and confectionaries. Higher DP1 scores were significantly associated with a lower prevalence of DIS (p-for-trend = 0.012). A higher DP2 score was significantly associated with a higher prevalence of insomnia (p-for-trend = 0.032). There was no significant association between DP3 and insomnia symptoms (p-for-trend >0.05). CONCLUSION: Our results highlighted that a dietary pattern with a high intake of vegetables, soy products, and fruits may contribute to reducing insomnia symptoms among independent older adults.

  31. 加熱式タバコを含むタバコ製品の使用と歯周病発症リスクとの関連の検討

    塩田 千尋, 竹内 研時, 草間 太郎, 木内 桜, 玉田 雄大, 小坂 健, 田淵 貴大

    日本公衆衛生学会総会抄録集　82回　297-297　2023/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  32. Test-negative designによる新型コロナウイルス2価ワクチンの有効性評価 VENUS Study

    玉田 雄大, 竹内 研時, 草間 太郎, 小坂 健, 前田 恵, 村田 典子, 福田 治久

    日本公衆衛生学会総会抄録集　82回　326-326　2023/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  33. 地域住民コホート調査によるメタボロームと認知機能低下の関連

    木内 桜, 中谷 久美, 竹内 研時, 小坂 健, 寳澤 篤

    日本公衆衛生学会総会抄録集　82回　389-389　2023/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  34. Estimation of external dose for wild Japanese macaques captured in Fukushima prefecture: decomposition of electron spin resonance spectrum International-journal

    Yusuke Mitsuyasu, Toshitaka Oka, Atsushi Takahashi, Yasushi Kino, Kenichi Okutsu, Tsutomu Sekine, Takuma Yamashita, Yoshinaka Shimizu, Mirei Chiba, Toshihiko Suzuki, Ken Osaka, Keiichi Sasaki, Masatoshi Suzuki, Manabu Fukumoto, Hisashi Shinoda

    Radiation Protection Dosimetry　199　(14)　1620-1625　2023/09/18

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/rpd/ncad146 　

    ISSN： 0144-8420

    eISSN： 1742-3406

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    Abstract The signal intensities of CO2− radicals in teeth can be utilised as an individual indicator of the cumulative external dose for animals. To accurately determine the external dose, it is desirable to analyse the CO2− radical intensity and improve its detection limit. We recently reported a dose–response in the range of 0–200 mGy and estimated the absorbed dose for seven wild Japanese macaques captured in/around the related areas to the Fukushima Daiichi Nuclear Power Plant accident. Herein, for further improvement of this method, we examined the electron spin resonance spectra of the teeth of these seven and an additional four macaques captured in Fukushima by applying two spectrum-decomposition algorithms.

  35. Compliance Trajectory and Patterns of COVID-19 Preventive Measures, Japan, 2020-2022. International-journal

    Taro Kusama, Kenji Takeuchi, Yudai Tamada, Sakura Kiuchi, Ken Osaka, Takahiro Tabuchi

    Emerging infectious diseases　29　(9)　1747-1756　2023/07/24

    DOI： 10.3201/eid2909.221754 　

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    COVID-19 remains a global health threat. Compliance with nonpharmaceutical interventions is essential because of limited effectiveness of COVID-19 vaccines, emergence of highly contagious variants, and declining COVID-19 antibody titers over time. We evaluated compliance with 14 nonpharmaceutical intervention-related COVID-19 preventive behaviors, including mask wearing, ventilation, and surface sanitation, in a longitudinal study in Japan using 4 waves of Internet survey data obtained during 2020-2022. Compliance with most preventive behaviors increased or remained stable during the 2-year period, except for surface sanitation and going out behaviors; compliance with ventilation behavior substantially decreased in winter. Compliance patterns identified from latent class analysis showed that the number of persons in the low compliance class decreased, whereas those in the personal hygiene class increased. Our findings reflect the relaxation of mobility restriction policy in Japan, where the COVID-19 pandemic continues. Policymakers should consider behavioral changes caused by new policies to improve COVID-19 prevention strategies.

  36. Effectiveness of COVID-19 vaccines against infection in Japan: A test-negative study from the VENUS study. International-journal

    Yudai Tamada, Kenji Takeuchi, Taro Kusama, Megumi Maeda, Fumiko Murata, Ken Osaka, Haruhisa Fukuda

    Vaccine　41　(37)　5447-5453　2023/07/22

    DOI： 10.1016/j.vaccine.2023.07.035 　

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    BACKGROUND: Although the effectiveness of coronavirus disease 2019 (COVID-19) vaccines is a crucial public health concern, evidence from Western Pacific countries is limited, including Japan. This study aimed to estimate the COVID-19 vaccines effectiveness (VE) against infection during the Delta variant predominance (July-September 2021) in Japan. METHODS: We performed a test-negative study using COVID-19 test data of ≥20-year-old residents in four municipalities who were tested in medical institutions between July 1 and September 30, 2021. We extracted COVID-19 test data from healthcare claims data, and the vaccination status at the testing date was ascertained using the Vaccination Record System data. Confirmed positive cases were identified using data from the national system for COVID-19, Health Center Real-time Information-sharing System on COVID-19. Logistic regression analyses were conducted to estimate the odds of testing positive according to vaccination status. VE was calculated as (1 - odds ratio) × 100%. RESULTS: This study included 530 positive and 15,650 negative results. Adjusted manufacturer-unspecified VE was 4.1% (95% confidence interval [CI], -36.5-32.6) at 0-13 days after the first dose, 45.2% (95% CI, 13.4-65.3) at ≥14 days after the first dose, 85.2% (95% CI, 69.9-92.7) at 0-13 days after the second dose, and 79.6% (95% CI, 72.6-84.8) at ≥14 days after the second dose. In addition, the VE after the second dose was highest at 14-34 days after the dose (VE, 89.1%; 95% CI, 80.5-93.9). CONCLUSIONS: High real-world effectiveness of COVID-19 vaccines, especially two doses, against infection during the Delta variant predominance in Japan was confirmed.

  37. Dental prosthesis use is associated with higher protein intake among older adults with tooth loss. International-journal

    Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Jun Aida, Hiroyuki Hikichi, Satoshi Sasaki, Katsunori Kondo, Ken Osaka

    Journal of oral rehabilitation　50　(11)　1229-1238　2023/07/02

    DOI： 10.1111/joor.13554 　

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    BACKGROUND: Tooth loss is associated with reduced protein intake, which leads to sarcopenia and frailty in older adults. OBJECTIVE: To evaluate the protective effect of dental prostheses on decreased protein intake in older adults with tooth loss. METHODS: This cross-sectional study was based on a self-reported questionnaire targeting older adults. Data were obtained from the Iwanuma Survey of the Japan Gerontological Evaluation Study. We used % energy intake (%E) of total protein as the outcome and the use of dental prostheses and number of remaining teeth as explanatory variables. We estimated the controlled direct effects of tooth loss by fixing the use/non-use of dental prostheses based on a causal mediation analysis, including possible confounders. RESULTS: Among 2095 participants, the mean age was 81.1 years (1SD = 5.1), and 43.9% were men. The average protein intake was 17.4%E (1SD = 3.4) of the total energy intake. Among participants with ≥20, 10-19 and 0-9 remaining teeth, the average protein intake was 17.7%E, 17.2%E/17.4%E and 17.0%E/15.4%E (with/without a dental prosthesis), respectively. Compared to participants with ≥20 remaining teeth, those with 10-19 remaining teeth without a dental prosthesis did not have a significantly different total protein intake (p > .05). Among those with 0-9 remaining teeth without a dental prosthesis, total protein intake was significantly low (-2.31%, p < .001); however, the use of dental prostheses mitigated the association by 79.4% (p < .001). CONCLUSION: Our results suggest that prosthodontic treatment could contribute to maintaining protein intake in older adults with severe tooth loss.

  38. Effect of Tooth Loss on Cognitive Function among Older Adults in Singapore

    S. Kiuchi, U. Cooray, J. Aida, K. Osaka, A. Chan, R. Malhotra, M.A. Peres

    Journal of Dental Research　2023/07

    DOI： 10.1177/00220345231172109 　

  39. Exposure to household dysfunction at childhood and later number of teeth among older Japanese adults: A life course study from the Japan Gerontological Evaluation Study. International-journal

    Hazem Abbas, Kenji Takeuchi, Sakura Kiuchi, Katsunori Kondo, Ken Osaka

    Journal of public health dentistry　83　(3)　299-308　2023/07

    DOI： 10.1111/jphd.12582 　

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    OBJECTIVES: The aim of this retrospective cohort study was to investigate the life course association between exposure to two household dysfunctions (father violence against mother and parental divorce) at childhood (≤18 years) with later number of remaining teeth (≥65 years) in functionally independent older Japanese population. This was the first study to investigate this research question in the Asian context. METHODS: The Japan Gerontological Evaluation study (JAGES) self-reported retrospective data gathered in 2013 was used (n = 21,604). Each household dysfunction was binary variable (Yes/No), while the five categories of the number of remaining teeth were ≥20, 10-19, 5-9, 1-4, and no teeth. Sex-stratified ordered logistic regression models were used to calculate the odds ratios (OR) of having fewer teeth. The models were adjusted for age, economic adversity in childhood, educational attainment, comorbidities, and smoking status. RESULTS: Overall, 46.4% were men and a total of 1149 participants (5.3%) experienced household dysfunction at childhood [men = 642 (6.4%), women = 507 (4.4%)]. The regression models showed higher OR of having fewer teeth among men who experienced a household dysfunction [OR = 1.16; 95% Confidence interval (CI) = 1.00-1.36] than men who did not. This association was not observed among women [OR = 0.94; 95% CI = 0.79-1.13]. Similar magnitude and direction of the association was observed among men but not among women when the two components of household dysfunction were used separately and aggregately as exposure variables. CONCLUSION: An exposure to a household dysfunction at childhood was associated with having fewer teeth in later life among men but not among women.

  40. The role of science communication and academic health advocacy in improving population oral health and tackling inequalities. International-journal

    Hazem Abbas, Kenji Takeuchi, Ken Osaka, Carol C Guarnizo-Herreño, Georgios Tsakos, Richard G Watt

    Community dentistry and oral epidemiology　51　(4)　606-608　2023/06/06

    DOI： 10.1111/cdoe.12882 　

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    Oral conditions are a public health problem globally and stark oral health inequalities exist between and within countries. Yet, oral diseases are rarely considered as a health priority and evidence-informed policy generation is challenging. Science communication and health advocacy are critical in that respect. However, due to time limitations, research workload and other factors, academics are usually hindered from participating in such lengthy endeavours. Here, we make the case that 'science communication and health advocacy task forces' should be a priority at academic institutions. The two main duties of these task forces are knowledge transfer about the burden of oral conditions and patterns of inequalities, and their underlying social and commercial determinants, and advocacy and mediation between the stakeholders involved directly or indirectly in policy making. These interdisciplinary task forces, including both academics and non-academics, should collectively have skills that include (1) knowledge about oral health, dental public health and epidemiology, (2) ability to communicate clearly and coherently and make the case in both lay and scientific language terms, (3) familiarity with digital and social media platforms and ability to create visual aids, videos and documentaries, (4) good negotiation skills and (5) maintaining scientific transparency and avoiding getting involved in confrontation with political parties. In the current context, the role of the academic institutions should not only be the production of knowledge, but also the active transferability and application of this knowledge towards public benefit.

  41. Assessing the impacts of smoking cessation and resumption on back pain risk in later life International-journal Peer-reviewed

    Takaaki Ikeda, Upul Cooray, Masayasu Murakami, Ken Osaka

    European Journal of Pain　27　(8)　973-980　2023/05/25

    DOI： 10.1002/ejp.2139 　

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    BACKGROUND: This study aimed to assess the impacts of smoking cessation and resumption over 4 years on the risk of back pain at the 6-year follow-up among older adults in England. METHODS: We analysed 6467 men and women aged ≥50 years in the English Longitudinal Study of Aging. Self-reported smoking status, assessed in waves 4 (2008-2009) and 6 (2012-2013), was used as exposure for the study, whereas self-reported back pain of moderate or severe intensity, assessed in wave 7 (2014-2015), was used as the outcome. A targeted minimum loss-based estimator was used with longitudinal modified treatment policies to adjust for baseline and time-varying covariates. RESULTS: Regarding the estimation of the effects of changes in smoking status on the risk of back pain, during the follow-up, individuals who resumed smoking within 4 years had a higher risk of back pain than those who avoided smoking for over 4 years, and the relative risk (RR) (95% confidence interval [CI]) was 1.536 (1.214-1.942). Regarding the estimation of effects of smoking cessation on the risk of back pain, smoking cessation over 4 years was associated with a significantly lower risk of back pain, as indicated by the originally observed data, and the RR (95% CI) was 0.955 (0.912-0.999). CONCLUSIONS: Older adults who avoided smoking for over 4 years had a lower risk of back pain. However, those who resumed smoking within 4 years had a higher risk of back pain. SIGNIFICANCE: Older adults who avoided smoking for over 4 years had a lower risk of back pain. However, those who resumed smoking within 4 years had a higher risk of back pain. Our study data suggest the importance of maintaining smoking cessation to reduce the risk of back pain in the older population.

  42. Change in Geographic Accessibility to Dental Clinics Affects Access to Care

    T. Yamamoto, M. Hanazato, H. Hikichi, K. Kondo, K. Osaka, I. Kawachi, J. Aida

    Journal of Dental Research　002203452311677-002203452311677　2023/05/19

    Publisher: SAGE Publications

    DOI： 10.1177/00220345231167771 　

    ISSN： 0022-0345

    eISSN： 1544-0591

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    Access to dental clinics is a feature of the neighborhood service environment that may influence oral health care utilization. However, residential selection poses a challenge to causal inference. By studying the involuntary relocation of survivors of the 2011 Great East Japan Earthquake and Tsunami (GEJE), we examined the association between changes in geographic distance to dental clinics and dental visits. Longitudinal data from a cohort of older residents in Iwanuma City directly impacted by the GEJE were analyzed in this study. The baseline survey was conducted in 2010, 7 mo before the occurrence of GEJE, and a follow-up was conducted in 2016. Using Poisson regression models, we estimated the incidence rate ratios (IRR) and 95% confidence intervals (CIs) for the uptake of denture use (as a proxy for dental visits) according to changes in distance from the nearest dental clinic to their house. Age at baseline, housing damage by the disaster, deteriorating economic conditions, and worsened physical activity were used as confounders. Among the 1,098 participants who had not worn dentures before the GEJE, 495 were men (45.1%), with a mean ± SD age at baseline of 74.0 ± 6.9 y. During the 6-year follow-up, 372 (33.9%) participants initiated denture use. Compared to those who experienced a large increase in distance to dental clinics (&gt;370.0–6,299.1 m), a large decrease in distance to dental clinics (&gt;429.0–5,382.6 m) was associated with a marginally significantly higher initiation of denture use among disaster survivors (IRR = 1.28; 95% CI, 0.99–1.66). The experience of major housing damage was independently associated with higher initiation of denture use (IRR = 1.77; 95% CI, 1.47−2.14). Improved geographic access to dental clinics may increase dental visits of disaster survivors. Further studies in non-disaster-affected areas are needed to generalize these findings.

  43. Lower socio-economic status in adolescence is associated with poor oral health at an older age: Mediation by social and behavioural factors. International-journal

    Kinumi Yamamoto-Kuramoto, Taro Kusama, Sakura Kiuchi, Katsunori Kondo, Ken Osaka, Kenji Takeuchi, Jun Aida

    Gerodontology　40　(4)　509-517　2023/04/10

    DOI： 10.1111/ger.12688 　

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    AIM: To examine the mediators between lower socio-economic status (SES) in adolescence and oral health at an older age to uncover the underlying mechanisms of the association. METHODS: Participants (n = 21 536) aged ≥65 years from the Japan Gerontological Evaluation Study were evaluated. The dependent variables were self-rated chewing difficulty and having ≤19 remaining teeth. The main independent variable was self-perceived SES in adolescence. The Karlson-Holm-Breen method was used for mediation analysis. RESULTS: Mean age of the participants was 74.8 years (standard deviation = 6.4), and 51.5% were female. Overall, 5598 (26.0%) participants reported chewing difficulty and 9404 (43.7%) had ≤19 remaining teeth. Lower SES in adolescence was associated with a higher prevalence of chewing difficulty (odds ratio [OR] = 1.38, 95%confidence interval [CI] = 1.29-1.48; total effect). After controlling for mediators, OR for lower SES in adolescence was 1.22 (95%CI = 1.13-1.30; direct effect) and 1.13 (95%CI = 1.11-1.16; indirect effect). Mediators, prominently the number of teeth and income, explained 39.3% of the associations. Lower SES in adolescence increased the odds of ≤19 remaining teeth by OR = 1.23 (95% CI = 1.16-1.31; total effect). After controlling for mediators, the OR for lower SES in adolescence was 1.03 (95%CI = 0.97-1.10; direct effect) and 1.19 (95%CI = 1.16-1.23; indirect effect). Mediators, prominently educational attainment, explained 85.0% of the associations. CONCLUSIONS: Lower SES in adolescence was associated with poor oral health at an older age through mediators. Approaches that consider social determinants from the beginning of the life course are required.

  44. 歯科受診の有無と8年間の累積介護費用との関連 JAGESコホート研究

    木内 桜, 竹内 研時, 草間 太郎, 中澤 典子, 相田 潤, 小坂 健, 近藤 克則, 斉藤 雅茂

    口腔衛生学会雑誌　73　(増刊)　142-142　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  45. 労働者におけるVisual Display Terminals時間と歯痛との関連 JACSIS研究

    村松 賢志郎, 塩田 千尋, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　165-165　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  46. 良好な職場環境と予防目的の歯科受診との関連 JACSIS研究

    劉 芳吟, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　166-166　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  47. 新型コロナウイルス流行下における帰宅時のうがい習慣と味覚・嗅覚障害との関連の検討 JASTIS研究

    大内 博貴, 中澤 典子, 竹内 研時, 草間 太郎, 木内 桜, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　173-173　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  48. 高齢者の日常生活における笑いの頻度と抑うつ状態の関連 JAGES縦断研究

    岡崎 愛, 竹内 研時, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　176-176　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  49. ストロング系アルコール飲料の摂取習慣と歯周病との関連 JACSIS研究

    佐藤 那紀, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　182-182　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  50. 歯科受診の有無と8年間の累積介護費用との関連 JAGESコホート研究

    木内 桜, 竹内 研時, 草間 太郎, 中澤 典子, 相田 潤, 小坂 健, 近藤 克則, 斉藤 雅茂

    口腔衛生学会雑誌　73　(増刊)　142-142　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  51. 労働者におけるVisual Display Terminals時間と歯痛との関連 JACSIS研究

    村松 賢志郎, 塩田 千尋, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　165-165　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  52. 良好な職場環境と予防目的の歯科受診との関連 JACSIS研究

    劉 芳吟, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　166-166　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  53. 新型コロナウイルス流行下における帰宅時のうがい習慣と味覚・嗅覚障害との関連の検討 JASTIS研究

    大内 博貴, 中澤 典子, 竹内 研時, 草間 太郎, 木内 桜, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　173-173　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  54. 高齢者の日常生活における笑いの頻度と抑うつ状態の関連 JAGES縦断研究

    岡崎 愛, 竹内 研時, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　176-176　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  55. ストロング系アルコール飲料の摂取習慣と歯周病との関連 JACSIS研究

    佐藤 那紀, 竹内 研時, 草間 太郎, 木内 桜, 中澤 典子, 塩田 千尋, 小坂 健

    口腔衛生学会雑誌　73　(増刊)　182-182　2023/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  56. Association Between Toothbrushing Habits and COVID-19 Symptoms International-journal

    Hazem Abbas, Kenji Takeuchi, Shihoko Koyama, Ken Osaka, Takahiro Tabuchi

    International Dental Journal　73　(2)　302-310　2023/04

    DOI： 10.1016/j.identj.2022.07.011 　

    ISSN： 0020-6539

    eISSN： 1875-595X

  57. Association Between Toothbrushing Habits and COVID-19 Symptoms. International-journal

    Hazem Abbas, Kenji Takeuchi, Shihoko Koyama, Ken Osaka, Takahiro Tabuchi

    International dental journal　73　(2)　302-310　2023/04

    DOI： 10.1016/j.identj.2022.07.011 　

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    OBJECTIVES: The association between toothbrushing and coronavirus disease 2019 (COVID-19) infections is unknown. The aim of this study was to test the hypothesis that the change in time and frequency of toothbrushing is associated with having COVID-19 symptoms. METHODS: In this 8-month retrospective cohort study, we used the data from the Japan COVID-19 and Society Internet Survey (JACSIS; N = 22,366), which was conducted between August and September 2020. The logistic regression analyses were used to calculate the odds ratios (ORs) of having the 3 main COVID-19 symptoms (high fever, cough, and taste and smell disorder). Confounders were age, sex, educational attainment, equivalised income level, self-rated health, health literacy, and living area. RESULTS: The mean age of the participants was 49 years (SD = ±17.3), and 49.2% were male. Overall 2704 (12.1%) participants changed (increased or decreased) the time and frequency of toothbrushing, whilst 19,662 (87.9%) did not change. Only 60 participants (0.3%) had the 3 main COVID-19 symptoms. All logistic regression models showed that those who had a change in time and frequency of toothbrushing had higher odds of having the 3 main COVID-19 symptoms compared to those who had unchanged time and frequency of toothbrushing. The ORs ranged from 6.00 (95% confidence interval [CI], 3.60-9.99) in the crude model to 4.08 (95% CI, 2.38-6.98) in the fully adjusted model. CONCLUSIONS: The change in time and frequency of toothbrushing from before to after the COVID-19 pandemic was associated with having the 3 main COVID-19 symptoms.

  58. Oral status and incident functional disability: A 9-year prospective cohort study from the JAGES. International-journal

    Kinumi Yamamoto-Kuramoto, Sakura Kiuchi, Kenji Takeuchi, Taro Kusama, Noriko Nakazawa, Yudai Tamada, Jun Aida, Katsunori Kondo, Ken Osaka

    Archives of gerontology and geriatrics　111　105009-105009　2023/03/28

    DOI： 10.1016/j.archger.2023.105009 　

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    INTRODUCTION: The population-attributable risk of oral status for incident functional disability remains unknown. We investigated the impact of a range of oral statuses (number of remaining teeth, chewing difficulty, dry mouth, and choking) on incident functional disability. METHODS: Participants (n = 44,083) aged ≥ 65 years from the Japan Gerontological Evaluation Study were evaluated. The outcome variable was incident functional disability, and the explanatory variables were four select oral statuses. The possible confounders were included as covariates. Using the Cox proportional hazards model, we calculated hazard ratios (HRs), 95% confidence intervals (CIs), and their population-attributable fractions (PAFs). RESULTS: The mean age of the participants was 73.7 (standard deviation=6.0) years at baseline, and 53.2% were women. A total of 8,091 participants (18.4%) developed functional disabilities during the follow-up period. Among the four oral statuses, the incidence rate of functional disability was the highest in those with chewing difficulty (3.27/100 person-years), followed by those with dry mouth (3.20/100 person-years), choking (3.10/100 person-years), and ≤19 remaining teeth (2.89/100 person-years). After adjusting for all covariates, chewing difficulty showed the highest risk of functional disability (HR=1.22, 95%CI=1.16-1.28), followed by ≤19 remaining teeth (HR=1.18, 95%CI=1.12-1.25), dry mouth (HR=1.18, 95%CI=1.12-1.24), and choking (HR=1.10, 95%CI=1.04-1.17). Regarding PAF, ≤19 remaining teeth (12.0%) were the largest, followed by chewing difficulty (7.2%), dry mouth (4.6%), and choking (1.9%). CONCLUSIONS: Maintaining a good oral status may reduce the risk of functional disability later in life. Given its population contribution, tooth loss had the largest impact among the four oral conditions.

  59. Education-related inequalities in oral health among older adults: Comparing Singapore and Japan. International-journal

    Sakura Kiuchi, Jun Aida, Upul Cooray, Ken Osaka, Angelique Chan, Rahul Malhotra, Marco A Peres

    Community dentistry and oral epidemiology　51　(4)　671-679　2023/03/09

    DOI： 10.1111/cdoe.12846 　

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    OBJECTIVES: Oral health inequalities exist worldwide, and cross-country comparisons can provide valuable insights into country-level characteristics contributing to such inequalities. However, comparative studies in Asian countries are limited. This study examined the magnitude of education-related oral health inequalities in older adults in Singapore and Japan. METHODS: Longitudinal data for older adults, aged ≥65 years, from the Panel on Health and Ageing of Singaporean Elderly (PHASE; 2009, 2011-2012, and 2015) and Japan Gerontological Evaluation Study (JAGES; 2010, 2013, and 2016) were used. Dependent variables were being edentate and having a minimal functional dentition (MFD; i.e. ≥20 teeth). The absolute and relative inequalities were calculated using the slope index of inequality (SII) and relative index of inequality (RII) for educational level [low (<6 years); middle (6-12 years); high (>12 years)] in each country. RESULTS: A total of 1032 PHASE participants and 35 717 JAGES participants were included. At baseline among PHASE participants, 35.9% were edentate and 24.4% had MFD, while among JAGES participants, 8.5% were edentate and 42.4% had MFD. The prevalence of low, middle and high educational levels for PHASE was 76.5%, 18.0% and 5.5%, and for JAGES were 0.9%, 78.1% and 19.7%, respectively. Older adults in Japan had lower education-related inequalities for being edentate [for both SII (-0.53, 95% CI = -0.55 to -0.50) and RII (0.40, 95% CI = 0.33-0.48)] and for not having MFD for both SII (-0.24, 95% CI = -0.27 to -0.20) and RII (0.83, 95% CI = 0.79-0.87) compared to Singapore. CONCLUSIONS: Education-related inequalities for being edentate and not having MFD were higher among older adults in Singapore compared to Japan.

  60. 自立高齢者における口腔の健康状態と体重減少の関連 JAGESコホート研究

    塩田 千尋, 草間 太郎, 竹内 研時, 木内 桜, 近藤 克則, 小坂 健

    Journal of Epidemiology　33　(Suppl.1)　115-115　2023/02

    Publisher: (一社)日本疫学会

    ISSN： 0917-5040

    eISSN： 1349-9092

  61. 高齢者における口腔機能と要介護発生との関連 JAGESコホート研究

    山元 絹美, 竹内 研時, 木内 桜, 草間 太郎, 中澤 典子, 玉田 雄大, 近藤 克則, 小坂 健

    Journal of Epidemiology　33　(Suppl.1)　156-156　2023/02

    Publisher: (一社)日本疫学会

    ISSN： 0917-5040

    eISSN： 1349-9092

  62. Co-Payments and Inequality in Gingival Bleeding and Dental Visits. International-journal

    Noriko Nakazawa, Taro Kusama, Kenji Takeuchi, Sakura Kiuchi, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka, Jun Aida

    International dental journal　73　(5)　628-635　2023/01/13

    DOI： 10.1016/j.identj.2022.11.009 　

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    OBJECTIVES: Japan's universal health insurance covers a wide range of dental treatments, and the co-payment rates differ by age. We investigated whether the inequality in gingival bleeding and dental visits was smaller amongst those with lower co-payment rates. METHODS: This cross-sectional study used data from the 2019 Japan Gerontological Evaluation Study. The participants were functionally independent adults aged 65 years or older. The dependent variables were current gingival bleeding as a symptom of periodontal diseases and dental nonattendance for treatment in the past year. The independent variables were ridit scores of equivalent income and educational status. For covariates, we used age, sex, and the number of remaining teeth. To evaluate the inequalities, we used the slope index of inequality (SII) and the relative index of inequality (RII). We also conducted stratified analyses by co-payment rates (30%, 20%, and 10%) to clarify the difference in inequalities by co-payment rate. RESULTS: A total of 15,389 participants were included in the analysis; their mean age was 71.8 (SD = 4.1) and 51.8% were women. There were significant absolute and relative inequalities in gingival bleeding and dental visits by equivalent income and education. With regards to educational status, inequalities were lower with a decrease in the co-payment rate. In particular, relative inequality by education in gingival bleeding was the largest amongst the 30% co-payment group (RII, 1.918; 95% confidence interval [CI], 1.386 to 2.656). For gingival bleeding, the absolute and relative inequality by equivalent income were not significant amongst the 10% co-payment group (SII, -0.003; 95% CI, -0.003 to 0.028; RII, 1.006; 95% CI = 0.676 to 1.498). CONCLUSIONS: A low co-payment rate was associated with smaller inequalities in gingival bleeding and dental visits by equivalent income and educational status.

  63. In-hospital Rehabilitation Therapy Outcomes in Adult Down’s Syndrome Patients with Community-acquired Pneumonia: A Nationwide Observational Study

    Takaaki Ikeda, Upul Cooray, Toshifumi Yodoshi, Makoto Kaneko, Ken Osaka, Masayasu Murakami

    Progress in Rehabilitation Medicine　8　n/a-n/a　2023

    Publisher: Japanese Association of Rehabilitation Medicine

    DOI： 10.2490/prm.20230033 　

    eISSN： 2432-1354

  64. Health-related quality of life in various health conditions: two consecutive surveys of older Japanese adults International-journal

    Takaaki Ikeda, Yoshimune Hiratsuka, Natsuyo Yanagi, Yasunori Komaki, Masayasu Murakami, Jun Aida, Katsunori Kondo, Ken Osaka

    Quality of Life Research　32　(4)　1209-1219　2022/11/19

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1007/s11136-022-03295-9 　

    ISSN： 0962-9343

    eISSN： 1573-2649

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    PURPOSE: Measuring health-related quality of life (HRQOL) in various health conditions in different countries is important given the regional differences. This study employed large-scale nationwide data targeting older adults in Japan to estimate the HRQOL in the key health conditions that are the major causes of disability. METHODS: Our data were derived from two survey waves (2016 and 2019 surveys) of cross-sectional data from the Japan Gerontological Evaluation Study, an ongoing nationwide study targeting functionally independent older adults in Japan. A total of 28,345 individuals from 27 of the 47 Japanese provinces were analyzed. The EuroQoL 5-dimension 5-level instrument (EQ-5D-5L) was employed to assess the HRQOL utility scores. The targeted minimum loss-based estimator with sampling weighting methods was applied to estimate the utility score in eight major health conditions, including sensory organ disease, musculoskeletal disease, oral disorders, and depressive disorders. RESULTS: The estimated HRQOL utility score for those with the poorest health conditions in self-rated health, hearing loss, vision loss, number of remaining teeth (e.g., no teeth with no denture use), oral dysfunction, depressive symptoms, chronic low back pain, and chronic knee pain was 0.576 (95% confidence interval (CI) 0.555-0.598), 0.768 (95% CI 0.737-0.800), 0.680 (95% CI 0.662-0.699), 0.809 (95% CI 0.796-0.821), 0.776 (95% CI 0.764-0.788), 0.723 (95% CI 0.710-0.737), 0.715 (95% CI 0.690-0.739), and 0.742 (95% CI 0.722-0.763), respectively. CONCLUSION: We successfully provided a catalog for the HRQOL utility score in key health conditions that are the leading causes of disability among older adults.

  65. Free Sugar Intake and Periodontal Diseases: A Systematic Review. International-journal

    Taro Kusama, Noriko Nakazawa, Kenji Takeuchi, Sakura Kiuchi, Ken Osaka

    Nutrients　14　(21)　2022/10/22

    DOI： 10.3390/nu14214444 　

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    High free sugar intake is associated with an increased risk of various non-communicable diseases. We aimed to systematically review articles investigating the association between free sugar intake and periodontal diseases. This systematic review was conducted according to PRISMA guidelines and was registered in the PROSPERO database (CRD42022337828). We obtained articles from PubMed, Web of Science, and Scopus in April 2022. The study selection was performed according to predefined eligibility criteria based on the following PECOS: (P) general population, (E/C) free-sugar-containing food/beverage intake, (O) clinically measured periodontal diseases, and (S) observational study and clinical trial. Of the 839 screened records, 13 studies were included in the review. Most studies (n = 12) had a cross-sectional design. The age groups in the included studies were children/adolescents (n = 5) and adults (n = 8). Among the included studies, 11 reported a significant association between the frequent intake of free-sugar-containing food or beverages and a higher prevalence or incidence of periodontal diseases. The quality of most of the included studies was scored "fair" based on the Newcastle-Ottawa Quality Assessment Scale. Although the majority of the included studies reported a significant positive association between high free sugar intake and periodontal diseases, the evidence is considered to be limited due to the study designs.

  66. Duration of Education and Back Pain: Lessons from English Schooling Reforms. International-journal

    Takaaki Ikeda, Yusuke Matsuyama, Masayasu Murakami, Ken Osaka

    American journal of epidemiology　192　(2)　195-204　2022/09/26

    DOI： 10.1093/aje/kwac168 　

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    This study aimed to examine the associations of increases in the duration of education with back pain using the exogenous variation generated by the English schooling reforms of 1947 and 1972. We analyzed cross-sectional data derived from nine waves (waves 1-9; 2002-2019) of the English Longitudinal Study of Ageing. An instrumental variables regression using two-stage least squares with the two-way cluster-robust standard error was used. The mean severity of back pain, measured using the Numerical Rating Scale, was used as the outcome. A total of 22,868 observations from 5,070 participants were included (the 1947 reform = 16,565 observations from 3,231 participants, mean age = 74.5; the 1972 reform = 6,303 observations from 1,839 participants, mean age = 59.3). The schooling reforms significantly extended years of school attendance by a mean of 0.57 years for the 1942 reform cohort and 0.66 years for 1972 reform cohort. For participants born within ±5 years of the pivotal cohorts, an additional year of education decreased the severity of back pain by 0.78 points (95% confidence interval, 0.65-0.92) for the 1972 reform cohort. Our finding underscores the importance of the length of education in the reduction of back pain in middle-aged individuals.

  67. Effects of the different periods and magnitude of COVID ‐19 infection spread on cancer operations: Interrupted time series analysis of medical claims data International-journal Peer-reviewed

    Natsue Kashiwagura, Fuyuhiko Motoi, Upul Cooray, Ryu Fukase, Yukiko Katayama, Ken Osaka, Masayasu Murakami, Takaaki Ikeda

    Cancer Medicine　12　(4)　4707-4714　2022/09/20

    DOI： 10.1002/cam4.5259 　

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    BACKGROUND: No clear evidence exists regarding the effects of the different periods and magnitude of spread of the COVID-19 infection on cancer treatments. This study investigated the effects of the different periods and magnitude of COVID-19 infection spread on in-hospital cancer operations. METHODS: Medical claims data from 17 hospitals where in-hospital operations for patients with malignant neoplasms were performed between 1 April 2017 and 31 March 2021 in Yamagata were extracted and analyzed. The critical time points as exposure used to evaluate the impact of different COVID-19 infection spread periods on cancer operations were (1) April 2020 (emergency declaration introduced by the government) and (2) December 2020 (the second wave). From April to November 2020 and December 2020 to March 21, the number of confirmed COVID-19 cases was 130 and 840, respectively. The 17 hospitals were classified into intervention or control groups based on whether in-hospital treatments for patients with COVID-19 were provided. RESULTS: The interrupted time series analysis reported that the difference in the trend of pre-COVID-19 and postsecond wave (March 2020 to December 2020) periods was statistically significant between groups, with 50.67 fewer operations (95% confidence interval [CI] = 12.19-89.15) performed per month in the intervention group compared with the control group. Moreover, the immediate change in the number of operations in April 2020 (beginning of the first wave) was statistically significant between groups, with 80.14 operations (95% CI = 39.62-120.67) less immediately after the first wave in the intervention group compared with the control group. CONCLUSION: Our findings suggest that a statement of emergency by the government and the COVID-19 infection spread are both associated with the number of cancer operations performed in the Yamagata prefecture during the COVID-19 pandemic.

  68. Changes in body mass index on the risk of back pain: Estimating the impacts of weight gain and loss International-journal Peer-reviewed

    Takaaki Ikeda, Upul Cooray, Yuta Suzuki, Anna Kinugawa, Masayasu Murakami, Ken Osaka

    The Journals of Gerontology: Series A　78　(6)　973-979　2022/09/08

    DOI： 10.1093/gerona/glac184 　

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    BACKGROUND: The relationship between obesity and back pain in older populations is poorly understood. This study aimed to examine (a) the impacts of changes in obesity status on back pain risk and (b) the heterogeneity in the influence of changes in obesity status according to muscle strength. METHODS: We analyzed 6 868 participants in waves 4 (2008-2009), 6 (2012-2013), and 7 (2014-2015) of the English Longitudinal Study of Ageing. The exposure comprised continuous body mass index (BMI) values, whereas the outcome comprised self-reported moderate or severe back pain. The targeted minimum loss-based estimator was used to estimate the impacts of hypothetical changes in BMI in each wave under 10 scenarios encompassing a 5%-25% hypothetical reduction/increase in BMI. We also performed stratified analysis using handgrip strength at the baseline. RESULTS: For the hypothetical reduction scenarios, a 10% (relative risk [RR]; 95% confidence interval [CI] = 0.82 [0.73-0.92], p = .001) reduction in BMI estimated a significantly lower back pain risk compared to the observed data. For the hypothetical increase scenarios, a 5% (RR [95% CI] = 1.11 [1.04-1.19], p = .002) increase in BMI estimated a significantly higher back pain risk. Increased BMI had a higher risk of back pain among those with weak strength when stratified by handgrip strength but not among those with strong strength. CONCLUSION: Our study confirmed that weight gain leads to a greater risk of back pain as well as heterogeneity in the influence of changes in obesity status according to the handgrip strength.

  69. 高齢者における歯科補綴装置の使用が抑うつ発症リスクへもたらす効果 JAGES縦断研究

    中澤 典子, 竹内 研時, 草間 太郎, 木内 桜, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　81回　229-229　2022/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  70. 高齢者の喫煙状況と健康・Well-beingとの関連 Out-come-wide縦断研究

    玉田 雄大, 草間 太郎, 竹内 研時, 木内 桜, 小坂 健, 近藤 克則, 田淵 貴大

    日本公衆衛生学会総会抄録集　81回　318-318　2022/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  71. SARS-CoV-2流行下における日本の一般住民の予防行動の遵守割合の推移

    塩田 千尋, 玉田 雄大, 竹内 研時, 草間 太郎, 木内 桜, 小坂 健, 田淵 貴大

    日本公衆衛生学会総会抄録集　81回　458-458　2022/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  72. Knowledge, Practices and Attitudes towards Silver Diamine Fluoride Therapy among Dentists in Japan: A Mixed Methods Study. International-journal

    Hollis Haotian Chai, Sakura Kiuchi, Ken Osaka, Jun Aida, Chun-Hung Chu, Shiqian Sherry Gao

    International journal of environmental research and public health　19　(14)　2022/07/17

    DOI： 10.3390/ijerph19148705 　

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    In 2021, the World Health Organization included silver diamine fluoride (SDF) as an essential medicine to manage caries in adults and children. SDF was developed in the 1960s, but its use for children became unpopular in Japan because of the decline and low prevalence of early childhood caries. This mixed methods study explored the knowledge, practices and attitudes towards SDF therapy among dentists promoting fluoride use in Japan. It also investigated senior dentists' perceptions of SDF therapy in Japan. The quantitative study invited all 173 members of the largest organisation promoting fluoride use in Japan to complete a web-based questionnaire survey. Sixty (60/173; 35%) dentists promoting fluoride use in Japan completed the questionnaire survey. All dentists knew of SDF treatment, and 50 (50/60; 83%) used SDF for dental care. Fifty-nine dentists (59/60; 98%) agreed that SDF therapy was simple and quick. All 60 dentists agreed that SDF was effective to arrest caries; 51 dentists (51/60; 85%) agreed that SDF was effective to prevent caries. Most dentists (51/60; 85%) were concerned about SDF's unaesthetic staining. Fifty-seven dentists (57/60; 95%) used SDF to arrest primary posterior teeth, and 52 dentists (52/60; 87%) used SDF to arrest root caries. However, 25 dentists (25/60; 42%) did not use SDF to prevent caries in permanent teeth. The qualitative study interviewed 12 senior dentists using snowball sampling and achieved data saturation. The dentists opined that SDF therapy was effective, simple, painless, non-invasive and inexpensive. SDF is seldom used in Japan at present because of the unaesthetic black staining and the low prevalence of early childhood caries; however, it can regain popularity by arresting root caries in the aging population.

  73. Detection limit of electron spin resonance for Japanese deciduous tooth enamel and density separation method for enamel–dentine separation International-journal

    Toshitaka Oka, Atsushi Takahashi, Kazuma Koarai, Yasushi Kino, Tsutomu Sekine, Yoshinaka Shimizu, Mirei Chiba, Toshihiko Suzuki, Ken Osaka, Keiichi Sasaki, Hisashi Shinoda

    Journal of Radiation Research　63　(4)　609-614　2022/07/02

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/jrr/rrac033 　

    ISSN： 0449-3060

    eISSN： 1349-9157

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    Abstract Electron spin resonance (ESR) dosimetry is one of the most powerful tools for radiation dose reconstruction. The detection limit of this technique using human teeth is reported to be 56 mGy or 67 mGy; however, the absorbed dose of Fukushima residents after the Fukushima Daiichi Nuclear Power Plant (FNPP) accident was estimated to be lower than this detection limit. Our aim is to assess the absorbed radiation dose of children in Fukushima Prefecture after the accident; therefore, it is important to estimate the detection limit for their teeth. The detection limit for enamel of deciduous teeth of Japanese children separated by the mechanical method is estimated to be 115.0 mGy. The density separation method can effectively separate enamel from third molars of Japanese people. As we have collected thousands of teeth from children in Fukushima, the present technique may be useful to examine their external absorbed dose after the FNPP accident.

  74. Difference of income inequalities of denture use by co‐payment rates: A <scp>JAGES</scp> cross‐sectional study International-journal

    Manami Hoshi‐Harada, Jun Aida, Upul Cooray, Noriko Nakazawa, Katsunori Kondo, Ken Osaka

    Community Dentistry and Oral Epidemiology　51　(3)　557-564　2022/05/15

    Publisher: Wiley

    DOI： 10.1111/cdoe.12749 　

    ISSN： 0301-5661

    eISSN： 1600-0528

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    OBJECTIVES: Studies suggest that wearing dentures to restore missing teeth can have a positive impact on health status. However, income inequalities in denture wearing exist. The aim of this study was to investigate how differing co-payment rates under the current Japanese Universal Health Insurance Coverage System affect income inequalities in denture non-use among older adults with severe tooth loss. METHODS: This cross-sectional study used data from the 2019 Japan Gerontological Evaluation Study (JAGES). Self-administered questionnaires were mailed to 345 356 independent people who did not receive long-term care insurance benefits and were aged ≥65 years. The dependent variable was denture non-use, and the independent variable was the equivalent annual household income. The Slope Index of Inequality (SII) and Relative Index of Inequality (RII) were used with regression-based approaches to determine both absolute and relative inequalities in denture non-use by co-payment rates. The covariates were sex, age, years of education, number of teeth and comorbidities. RESULTS: Of the 240 889 responses received (response rate =69.9%), we analysed 21 594 participants who fulfilled the inclusion criteria. The mean age was 72.8 years (standard deviation =4.1), and 57.6% were men. For 30 per cent, 20 per cent and 10 per cent co-payment rates, the percentages of people who did not use dentures and had severe tooth loss (≤9 teeth) were 18.3%, 13.3%, and 8.5%, respectively. All analyses confirmed significant inequalities in denture non-use. The lower the co-payment rate, the smaller the inequalities. SIIs for each co-payment rate were as follows: 30 per cent =13.35% (95% confidence interval [CI] = 9.61-17.09); 20 per cent =7.85% (95% CI = 4.88-10.81); and 10 per cent =4.85% (95% CI = 2.55-7.16). Inclusion of interaction term between income and co-payment rate significantly lowered the inequalities by co-payment rate in logistic regression analysis and SII. For RII, although the interaction was not statistically significant, a similar trend was observed. CONCLUSIONS: Income inequalities in denture use existed among older adults with severe tooth loss in Japan, and the inequalities appeared to be greater when the co-payment rate was higher.

  75. Community intervention programs prolong the onset of functional disability among older Japanese.

    Takafumi Yamamoto, Hiroyuki Hikichi, Katsunori Kondo, Ken Osaka, Jun Aida

    Geriatrics & gerontology international　22　(6)　465-470　2022/04/22

    DOI： 10.1111/ggi.14385 　

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    AIM: This study examined the effects of a "community-based center" intervention to prevent the onset of functional disability among residents in disaster-affected areas. METHODS: We used data from a prospective cohort study conducted from 2010 to 2016 in Iwanuma City, Japan. Participants were community-dwelling independent adults aged ≥65 years. The exposure variable was the experience of using a community-based center. The outcome variable was functional disability onset. The average treatment effect on the treated (ATET) was estimated by adjusting for possible confounders. Additional analysis stratified by sex was conducted considering the sex differences in social participation rates. RESULTS: Among 3794 participants (mean ± SD age = 72.9 ±5.3 years, 46.0% men), 196 (5.2%) used the community-based center, and 849 (22.4%) exhibited disability onset. Of those with functional disabilities, 40 (20.4%) used the community-based center, while 809 (22.5%) did not. The ATET for functional disability onset with community-based center activities across all participants were not significant (ATET: 0.51 years [95% confidence interval [CI] = -0.23; 1.27]). However, the direction of the effect of community-based center activities differed by sex (ATET: -0.14, 95% CI = -2.59; 2.31 for men [n = 18], and 0.66, 95% CI = 0.18; 1.16 for women [n = 178]). Women exhibited a 15.63% (95% CI = 3.58; 27.68) increase in the time until functional disability onset. CONCLUSIONS: The use of community-based centers was associated with a longer period without functional disability in women. Geriatr Gerontol Int ••; ••: ••-•• Geriatr Gerontol Int 2022; ••: ••-••.

  76. Association among the number of teeth, dental prosthesis use, and subjective happiness: A cross-sectional study from the Japan Gerontological Evaluation study (JAGES) International-journal

    Hazem Abbas, Jun Aida, Katsunori Kondo, Ken Osaka

    The Journal of Prosthetic Dentistry　131　(5)　871-877　2022/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.prosdent.2022.02.014 　

    ISSN： 0022-3913

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    STATEMENT OF PROBLEM: Little is known about the association between the number of teeth and self-rated happiness or the association between dental prosthesis use and self-rated happiness in an older population. PURPOSE: The purpose of this cross-sectional study was to examine the association between the number remaining of teeth with and without dental prosthesis use and self-rated happiness in an older population. MATERIAL AND METHODS: The survey data from the 2016 Japan Gerontological Evaluation Study (JAGES) on independent participants aged 65 years or older were assessed. The Poisson regression and multiple imputation methods were used for analyses. Covariates were age, sex, marital status, educational attainment, self-rated health, self-rated economic situation, and symptoms of depression. RESULTS: The data from 178 090 participants, 81 489 men (45.8%) and 96 601 women (54.2%), were analyzed, with a mean ±standard deviation age of 73.6 ±6.1 years. Overall, 66.4% of the participants were happy, declining to 45.7% in those who had 0 to 9 teeth and no dental prosthesis (n=3102). It was 61.5% in those who had 0 to 9 teeth and used a dental prosthesis (n=41 424), 56.8% in those who had 10 to 19 teeth and no dental prosthesis (n=6719), 65% in those who had 10 to 19 teeth and used a dental prosthesis (n=31 592), 70.5% in those who had ≥20 teeth and no dental prosthesis (n=52 525), and 70.1% in those who had ≥20 teeth and used a dental prosthesis (n=42 728). The interaction analysis showed that the reduction in the probability of being happy among those with fewer teeth was smaller among those who used a dental prosthesis. CONCLUSIONS: Having a higher number of teeth and using a dental prosthesis were independently associated with being happy. A significant interaction suggested that dental prosthesis use improves happiness among those with moderate to severe tooth loss (<20 remaining teeth).

  77. 新型コロナウイルス感染症拡大期の対面交流と笑いの頻度との関連

    木内 桜, 竹内 研時, 草間 太郎, 小坂 健

    口腔衛生学会雑誌　72　(増刊)　86-86　2022/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  78. 歯の喪失による死亡リスク上昇における体重減少の媒介効果 高齢者を対象としたJAGESコホート研究

    草間 太郎, 竹内 研時, 木内 桜, 相田 潤, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　72　(増刊)　93-93　2022/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  79. 新型コロナウイルス感染症拡大期の対面交流と笑いの頻度との関連

    木内 桜, 竹内 研時, 草間 太郎, 小坂 健

    口腔衛生学会雑誌　72　(増刊)　86-86　2022/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  80. 歯の喪失による死亡リスク上昇における体重減少の媒介効果 高齢者を対象としたJAGESコホート研究

    草間 太郎, 竹内 研時, 木内 桜, 相田 潤, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　72　(増刊)　93-93　2022/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  81. Does remaining teeth and dental prosthesis associate with social isolation? A six-year longitudinal study from the Japan Gerontological Evaluation Study (JAGES). International-journal

    Hazem Abbas, Jun Aida, Upul Cooray, Takaaki Ikeda, Shihoko Koyama, Katsunori Kondo, Ken Osaka

    Community dentistry and oral epidemiology　51　(2)　345-354　2022/03/30

    DOI： 10.1111/cdoe.12746 　

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    OBJECTIVES: Social isolation was associated with increased mortality and numerous adverse health outcomes. However, the longitudinal association between oral health and social isolation has not been studied. In this longitudinal prospective cohort study, the association between the number of remaining teeth and dental prosthesis use with social isolation after 6-years follow-up was examined. METHODS: Functionally independent adults aged 65 years or older, who were not socially isolated in 2010, were followed up until 2016 in the Japan Gerontological Evaluation Study. Data from 26 417 participants were analysed after random forest imputation to address missing data. Logistic regression models were used to calculate the odds ratio (OR) for incident social isolation in 2016 after adjusting for age, sex, educational attainment, income, activities of daily living, living area and having depressive symptoms. RESULTS: The mean age of the participants at baseline was 72.3 (SD = 5.0). A total of 1,127 (4.3%) participants were socially isolated at follow-up. Of these, 338 (3.2%) had ≥20 teeth (with or without using dental prosthesis), 171 (3.9%) had 10-19 teeth and used dental prosthesis, 112 (4.2%) had 10-19 teeth and did not use the dental prosthesis, 338 (5.1%) had 0-9 teeth and used dental prosthesis, and 168 (7.6%) had 0-9 teeth and did not use the dental prosthesis. Fully adjusted logistic regression models showed that the OR of incident social isolation was higher for those with fewer teeth; OR = 1.13 (95%CI = 0.96-1.33) for those with 10-19 teeth and OR = 1.36 (95%CI = 1.17-1.58) for those with 0-9 teeth, compared to those with ≥20 teeth. The OR of incident social isolation was lower for those who used a dental prosthesis [OR = 0.90, 95%CI = 0.80-1.02)] compared to those who did not use a dental prosthesis. The interaction between the number of teeth and dental prosthesis use demonstrated that the latter mitigated the incidence of social isolation for participants with tooth loss. Compared to those with ≥20 teeth (with or without prosthesis use), participants with 0-9 teeth that did not use a dental prosthesis were 79% [OR = 1.79, 95%CI = 1.49-2.19] more likely to be socially isolated, whereas participants with 0-9 teeth that used a dental prosthesis were only 23% [OR = 1.23, 95%CI = 1.05-1.45] more likely to be socially isolated. CONCLUSION: Tooth loss was the main predictor for social isolation at follow-up, while no dental prostheses use was an additional risk factor. Dental prosthesis use may reduce the risk of social isolation especially in those with severe tooth loss.

  82. Information Usage and Compliance with Preventive Behaviors for COVID-19: A Longitudinal Study with Data from the JACSIS 2020/JASTIS 2021. International-journal

    Taro Kusama, Sakura Kiuchi, Kenji Takeuchi, Takaaki Ikeda, Noriko Nakazawa, Anna Kinugawa, Ken Osaka, Takahiro Tabuchi

    Healthcare (Basel, Switzerland)　10　(3)　2022/03/13

    DOI： 10.3390/healthcare10030521 　

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    The influence of different types of information sources on individual preventive behaviors remains unclear. We aimed to investigate the associations between individual information usage to obtain information about COVID-19 and compliance with preventive behaviors. This longitudinal study was based on an Internet survey conducted in August-September 2020 and February 2021. We used compliance with four preventive behaviors for COVID-19, "wearing a mask", "ventilation", "social distancing", and "avoiding crowds" as outcome variables, and 20 types of information sources based on people or institutions (Medical worker, Government, etc.) and media (TV news, Twitter, etc.) as predictors. Absolute differences and 95% confidence intervals were estimated using generalized estimating equations adjusted for possible confounders. Among the 18,151 participants aged 20-79, the mean age was 51.7 (SD = 15.9) in 2020, and 51.3% were male. In total, compliance with "wearing a mask", "ventilation", "social distancing", and "avoiding crowds" was seen in 86.2%, 46.9%, 45.4%, and 62.6% of individuals in 2020, and 89.3%, 38.2%, 47.2%, and 61.6% of individuals in 2021, respectively. In the multivariate analysis, "medical workers", "professionals", "the government", "Twitter", "news websites", and "TV news" were positively associated with compliance with two or more preventive behaviors (p &lt; 0.05). The type of information source may play an important role in providing information for COVID-19 prevention.

  83. Maintaining Moderate or Vigorous Exercise Reduces the Risk of Low Back Pain at 4 Years of Follow-Up: Evidence From the English Longitudinal Study of Ageing. International-journal

    Takaaki Ikeda, Upul Cooray, Masayasu Murakami, Ken Osaka

    The journal of pain　23　(3)　390-397　2022/03

    DOI： 10.1016/j.jpain.2021.08.008 　

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    Few studies have examined whether maintaining moderate or vigorous physical activity (PA) reduces the risk of low back pain in older people. This study aimed to examine the magnitude of the associations of changes in PA on the risk of low back pain at 4 years of follow-up. We analyzed 4,882 participants in the English Longitudinal Study of Ageing who were initially free from low back pain (mean age, 65.6 ± 8.9 years at baseline). Self-reported PA, which was assessed at wave 6 (2012-2013) and wave 7 (2014-2015), was used as the exposure. The PA of the respondents was categorized into "no PA at all," "up to moderate PA," and "up to vigorous PA" groups. Self-reported moderate/severe low back pain assessed at 4 years of follow-up (2016-2017) was used as the outcome. Maintaining moderate (relative risk [RR], 0.59; 95% confidence interval [CI], 0.36-0.99) or vigorous (RR, 0.46; 95% CI, 0.27-0.77) PA at least 1-3 times a month was negatively associated with prevalence of low back pain compared with no PA at all. Interventions for maintaining either moderate or vigorous PA might be beneficial in preventing the incidence of low back pain in the older population. PERSPECTIVE: This study examined the magnitude of the association between changes in physical activity over time and the risk of low back pain. The findings suggest that encouraging people to maintain at least moderate physical activity over 2 years is useful for reducing the risk of low back pain at 4 years of follow-up.

  84. The lack of opportunity to eat together is associated with an increased risk of weight loss among independent older adults: a prospective cohort study based on the JAGES. International-journal

    Taro Kusama, Sakura Kiuchi, Yukako Tani, Jun Aida, Katsunori Kondo, Ken Osaka

    Age and ageing　51　(3)　2022/03/01

    DOI： 10.1093/ageing/afac022 　

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    OBJECTIVE: the present study aimed to investigate the relationship between the frequency of eating together and the risk of weight loss in older adults. METHODS: this was a three-year follow-up prospective cohort study based on a self-reported questionnaire. We used data from the Japan Gerontological Evaluation Study (JAGES) conducted in 2016 and 2019. The participants were independent older adults aged ≥65 years in Japan. We used >5% weight loss during follow-up as the outcome variable and frequency of eating together as the explanatory variable. The relative risks (RRs) and 95% confidence intervals (95% CIs) were estimated based on the Poisson regression model with a Huber-White sandwich estimator for standard errors, including possible confounders. RESULTS: among 56,919 participants, the mean age was 73.0 years (1SD = 5.5) at baseline, and 47.9% were male. About 15.1% (n = 8,596) of the participants experienced >5% weight loss during follow-up. The proportion of each category of the eating together frequency was 36.6% for 'every day', 10.3% for 'several times a week', 26.8% for 'several times a month', 20.5% for 'several times a year' and 5.8% for 'seldom'. Compared to 'every day', only 'several times a year (RR = 1.07, 95% CI = 1.01-1.13)' and 'seldom (RR = 1.17, 95% CI = 1.08-1.27)' were significantly associated with the increased risk of >5% weight loss. CONCLUSION: there is a temporal association between less frequent opportunities to eat together and the increased risk of weight loss among independent older adults.

  85. Large contribution of oral status for death among modifiable risk factors in older adults: the JAGES prospective cohort study. International-journal

    Noriko Nakazawa, Taro Kusama, Upul Cooray, Takafumi Yamamoto, Sakura Kiuchi, Hazem Abbas, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka, Jun Aida

    The journals of gerontology. Series A, Biological sciences and medical sciences　78　(1)　167-173　2022/03/01

    DOI： 10.1093/gerona/glac052 　

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    BACKGROUND: Oral diseases are preventable and modifiable, but highly prevalent, and cause worse oral status. Particularly, tooth loss has increased in aging societies. However, studies on population-attributable risks of modifiable risk factors for mortality have neglected oral status. This study aimed to investigate the impact of modifiable risk factors on mortality, including oral status. METHODS: This cohort study used the Japan Gerontological Evaluation Study (JAGES) data, including participants aged ≥65 years. The outcome was death between August 2010 to March 2017. We calculated the hazard ratios (HRs) and population attributable fraction (PAF) of modifiable risk factors (oral status, hypertension, depression, heart disease, diabetes, physical activity, smoking status, and alcohol drinking history) for mortality. RESULTS: Analyses included 24,175 men and 27,888 women (mean age: 73.8 [6.0] and 74.2 [6.1], respectively). In men, after adjusting for covariates, having no teeth showed the highest hazard ratio (hazard ratio [HR]=1.67, 95% confidence interval [CI]=1.51-1.86) among the modifiable risk factors, and the PAF for the number of teeth (18.2%) was the second largest following age. In women, having no teeth had the third largest HR (HR=1.37, 95%CI=1.19-1.56) following current and former smoking. The PAF for the number of teeth (8.5%) was the sixth largest, which was larger than that of smoking status (4.8%). CONCLUSIONS: In the older population, the HR and PAF of the number of teeth on mortality were sufficiently large compared with other modifiable risk factors, especially in men. Therefore, maintaining good oral status should be included more in global health policies.

  86. An Interpretable Machine Learning Approach to Predict Fall Risk Among Community-Dwelling Older Adults: a Three-Year Longitudinal Study. International-journal

    Takaaki Ikeda, Upul Cooray, Masanori Hariyama, Jun Aida, Katsunori Kondo, Masayasu Murakami, Ken Osaka

    Journal of general internal medicine　37　(11)　2727-2735　2022/02/02

    DOI： 10.1007/s11606-022-07394-8 　

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    BACKGROUND: Adverse health effects resulting from falls are a major public health concern. Although studies have identified risk factors for falls, none have examined long-term prediction of fall risk. Furthermore, recent evidence suggests that there are additional risk factors, such as psychosocial factors. OBJECTIVE: In this 3-year longitudinal study, we evaluated a predictive model for risk of fall among community-dwelling older adults using machine learning methods. DESIGN: A 3-year follow-up prospective longitudinal study (from 2010 to 2013). SETTING: Twenty-four municipalities in nine of the 47 prefectures (provinces) of Japan. PARTICIPANTS: Community-dwelling individuals aged ≥65 years who were functionally independent at baseline (n = 61,883). METHODS: The baseline survey was conducted from August 2010 to January 2012, and the follow-up survey was conducted from October to December 2013. Both surveys were conducted involving self-reported questionnaires. The measured outcome at the follow-up survey was self-reported multiple falls during the previous year. The 142 variables included in the baseline survey were regarded as candidate predictors. The random-forest-based Boruta algorithm was used to select predictors, and the eXtreme Gradient Boosting algorithm with 10 repetitions of nested k-fold cross-validation was used for modeling and model evaluation. Furthermore, we used shapley additive explanations to gain insight into the behavior of the prediction model. KEY RESULTS: Fourteen out of 142 candidate features were selected as predictors. Among these predictors, experience of falling as of the baseline survey was the most important feature, followed by self-rated health and age. Moreover, sense of coherence was newly identified as a risk factor for falls. CONCLUSIONS: This study suggests that machine learning tools can be adapted to explore new associative factors, make accurate predictions, and provide actionable insights for fall prevention strategies.

  87. Weight Loss Mediated the Relationship between Tooth Loss and Mortality Risk

    T. Kusama, K. Takeuchi, S. Kiuchi, J. Aida, K. Kondo, K. Osaka

    Journal of Dental Research　2022

    DOI： 10.1177/00220345221120642 　

    ISSN： 0022-0345

    eISSN： 1544-0591

  88. Subjective cognitive complaints and dental clinic visits: A cross-sectional study from the Japan Gerontological Evaluation Study

    Kinumi Yamamoto-Kuramoto, Sakura Kiuchi, Taro Kusama, Katsunori Kondo, Kenji Takeuchi, Ken Osaka, Jun Aida

    Geriatrics and Gerontology International　22　(9)　773-778　2022

    DOI： 10.1111/ggi.14455 　

    ISSN： 1444-1586

    eISSN： 1447-0594

  89. 子どもの頃の経済状況は高齢期の口腔の健康に関連するか 因果媒介分析による検討

    山元 絹美, 草間 太郎, 木内 桜, 近藤 克則, 小坂 健, 相田 潤

    Journal of Epidemiology　32　(Suppl.1)　169-169　2022/01

    Publisher: (一社)日本疫学会

    ISSN： 0917-5040

    eISSN： 1349-9092

  90. Association of poor dental status with eating alone: A cross-sectional Japan gerontological evaluation study among independent older adults. International-journal

    Anna Kinugawa, Taro Kusama, Takafumi Yamamoto, Sakura Kiuchi, Noriko Nakazawa, Katsunori Kondo, Ken Osaka, Jun Aida

    Appetite　168　105732-105732　2022/01/01

    DOI： 10.1016/j.appet.2021.105732 　

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    Eating alone is reported to deteriorate health; however, the relationship between eating alone and poor dental health remains unclear. This cross-sectional study aimed to investigate the association between poor dental health and eating alone. Data of participants (n = 156,287) aged ≥65 years from the Japan Gerontological Evaluation Study were evaluated using logistic regression to estimate adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the association between dental status, including prosthesis use, and eating status. Differences in these associations according to living status were also examined. The mean age of participants was 73.7 (SD = 6.0) years. The percentages of participants eating alone with 20 or more teeth, 10-19 teeth with dental prostheses, 0-9 teeth with dental prostheses, 10-19 teeth without dental prostheses, and 0-9 teeth without dental prostheses were 13.8%, 16.0%, 18.6%, 18.9%, and 27.0%, respectively. After adjusting for covariates, participants with 0-9 teeth without any dental prosthesis showed a significantly higher odds ratio for eating alone (OR = 1.81, 95% CI = 1.58-2.07) than those with 20 or more teeth. Among participants with poorer dental status, the probability of eating alone was higher in those living alone than in those living with others. Among older adults, poor dental status was significantly associated with eating alone, and this association was stronger among those living alone. Maintaining better dental status by using a dental prosthesis might reduce the risk of eating alone, especially for those living alone.

  91. Importance of socioeconomic factors in predicting tooth loss among older adults in Japan: Evidence from a machine learning analysis. International-journal

    Upul Cooray, Richard G Watt, Georgios Tsakos, Anja Heilmann, Masanori Hariyama, Takafumi Yamamoto, Isuruni Kuruppuarachchige, Katsunori Kondo, Ken Osaka, Jun Aida

    Social science & medicine (1982)　291　114486-114486　2021/12

    DOI： 10.1016/j.socscimed.2021.114486 　

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    Prevalence of tooth loss has increased due to population aging. Tooth loss negatively affects the overall physical and social well-being of older adults. Understanding the role of socio-demographic and other predictors associated with tooth loss that are measured in non-clinical settings can be useful in community-level prevention. We used high-dimensional epidemiological data to investigate important factors in predicting tooth loss among older adults over a 6-year period of follow-up. Data was from participants of 2010 and 2016 waves of the Japan Gerontological Evaluation Study (JAGES). A total of 19,407 community-dwelling functionally independent older adults aged 65 and older were included in the analysis. Tooth loss was measured as moving from a higher number of teeth category at the baseline to a lower number of teeth category at the follow-up. Out of 119 potential predictors, age, sex, number of teeth, denture use, chewing difficulty, household income, employment, education, smoking, fruit and vegetable consumption, community participation, time since last health check-up, having a hobby, and feeling worthless were selected using Boruta algorithm. Within the 6-year follow-up, 3013 individuals (15.5%) reported incidence of tooth loss. People who experienced tooth loss were older (72.9 ± 5.2 vs 71.8 ± 4.7), and predominantly men (18.3% vs 13.1%). Extreme gradient boosting (XGBoost) machine learning prediction model had a mean accuracy of 90.5% (±0.9%). A visual analysis of machine learning predictions revealed that the prediction of tooth loss was mainly driven by demographic (older age), baseline oral health (having 10-19 teeth, wearing dentures), and socioeconomic (lower household income, manual occupations) variables. Predictors related to wide a range of determinants contribute towards tooth loss among older adults. In addition to oral health related and demographic factors, socioeconomic factors were important in predicting future tooth loss. Understanding the behaviour of these predictors can thus be useful in developing prevention strategies for tooth loss among older adults.

  92. Radioactivity and radionuclides in deciduous teeth formed before the Fukushima-Daiichi Nuclear Power Plant accident International-journal

    Atsushi Takahashi, Mirei Chiba, Akira Tanahara, Jun Aida, Yoshinaka Shimizu, Toshihiko Suzuki, Shinobu Murakami, Kazuma Koarai, Takumi Ono, Toshitaka Oka, Joji Ikeyama, Osamu Kaneko, Makoto Unno, Kimiharu Hirose, Takashi Ohno, Yasushi Kino, Tsutomu Sekine, Ken Osaka, Keiichi Sasaki, Hisashi Shinoda

    Scientific Reports　11　(1)　10335-10335　2021/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41598-021-89910-0 　

    eISSN： 2045-2322

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    <title>Abstract</title>The Fukushima-Daiichi Nuclear Power Plant (FNPP) accident in March of 2011 released substantial amounts of radionuclides into the environment. We collected 4,957 deciduous teeth formed in children before the Fukushima accident to obtain precise control data for teeth formed after the accident. Radioactivity was measured using imaging plates (IP) and epidemiologically assessed using multivariate regression analysis. Additionally, we measured 90Sr, 137Cs, and natural radionuclides which might be present in teeth. Epidemiological studies of IP showed that the amount of radioactivity in teeth from Fukushima prefecture was similar to that from reference prefectures. We found that artificial radionuclides of 90Sr and 137Cs, which were believed to have originated from past nuclear disasters, and natural radionuclides including 40 K and daughter nuclides in the 238U and 232Th series contributed to the generation of radioactivity in teeth. We also found no evidence to suggest that radionuclides originating from the FNPP accident significantly contaminated pre-existing teeth. This is the first large-scale investigation of radioactivity and radionuclides in teeth. The present findings will be indispensable for future studies of teeth formed after the FNPP accident, which will fall out over the next several years and might be more contaminated with radionuclides.

  93. 多数歯欠損の高齢者の所得と義歯不使用の関連は医療費自己負担割合により異なるか

    原田 真奈実, 相田 潤, 中澤 典子, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　80回　264-264　2021/11

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  94. コロナ禍における歯磨き及び集団フッ化物洗口等の実施状況報告

    田所 大典, 相田 潤, 草間 太郎, 井下 英二, 竹内 研時, 濃野 要, 松山 祐輔, 三宅 達郎, 小坂 健

    日本公衆衛生学会総会抄録集　80回　437-437　2021/11

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  95. コロナ禍における歯磨き及び集団フッ化物洗口等の実施状況報告

    田所 大典, 相田 潤, 草間 太郎, 井下 英二, 竹内 研時, 濃野 要, 松山 祐輔, 三宅 達郎, 小坂 健

    日本公衆衛生学会総会抄録集　80回　437-437　2021/11

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  96. Oral status and homebound status: A 6-year bidirectional exploratory prospective cohort study. International-journal

    Hazem Abbas, Jun Aida, Sakura Kiuchi, Katsunori Kondo, Ken Osaka

    Oral diseases　29　(3)　1291-1298　2021/10/03

    DOI： 10.1111/odi.14039 　

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    OBJECTIVES: Little is known about the association between oral status and homebound status, and there is a possibility of a bidirectional relationship between them. In this exploratory prospective cohort study, we examined the association between four oral status measurements and being homebound bidirectionally. METHODS: We used 2010-2016 panel data gathered from the Japan Gerontological Evaluation Study. All functionally independent participants aged 65 years or older (n = 26,579) were included in this study. Multiple imputation and Poisson regression were used for analyses. We adjusted for age, sex, education, comorbidity, and depressive symptoms. RESULTS: In the fully adjusted model, the prevalence ratio (PR) of being homebound at follow-up was 1.42 for having <20 remaining teeth, 1.28 for having chewing difficulty, 0.99 for having choking experience, and 0.94 for having dry mouth at baseline. Reversely, being homebound at baseline predicted having chewing difficulty at follow-up (PR = 1.17), while no significant association was demonstrated with having <20 teeth (PR = 1.00), choking experience (PR = 1.06), and dry mouth (PR = 1.02). CONCLUSION: Chewing difficulty and having <20 remaining teeth predicted homebound status after 6 years. Reversely, homebound status at baseline only predicted having chewing difficulty at follow-up. These findings may help to determine the oral frailty assessment measures for older people.

  97. Proactive Engagement of the Expert Meeting in Managing the Early Phase of the COVID-19 Epidemic, Japan, February-June 2020. International-journal

    Tomoya Saito, Kaori Muto, Mikihito Tanaka, Nobuhiko Okabe, Hitoshi Oshitani, Satoshi Kamayachi, Yoshihiro Kawaoka, Akihiko Kawana, Motoi Suzuki, Kazuhiro Tateda, Hitomi Nakayama, Masaki Yoshida, Akifumi Imamura, Fumio Ohtake, Norio Ohmagari, Ken Osaka, Mitsuo Kaku, Tomimasa Sunagawa, Kazutoshi Nakashima, Hiroshi Nishiura, Koji Wada, Shigeru Omi, Takaji Wakita

    Emerging infectious diseases　27　(10)　1-9　2021/10

    DOI： 10.3201/eid2710.204685 　

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    To deal with the risk of emerging diseases with many unknowns, close and timely collaboration and communication between science experts and policymakers are crucial to developing and implementing an effective science-based intervention strategy. The Expert Meeting, an ad hoc medical advisory body, was established in February 2020 to advise Japan's COVID-19 Response Headquarters. The group played an important role in the policymaking process, promoting timely situation awareness and developing science-based proposals on interventions that were promptly reflected in government actions. However, this expert group may have been overly proactive in taking on the government's role in crisis management. For the next stage of managing the coronavirus disease pandemic and future pandemics, the respective roles of the government and its advisory bodies need to be clearly defined. Leadership and strategic risk communication by the government are key.

  98. Dental prosthetic treatment reduced the risk of weight loss among older adults with tooth loss. International-journal

    Taro Kusama, Noriko Nakazawa, Sakura Kiuchi, Katsunori Kondo, Ken Osaka, Jun Aida

    Journal of the American Geriatrics Society　69　(9)　2498-2506　2021/09

    DOI： 10.1111/jgs.17279 　

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    OBJECTIVES: Weight loss is a critical health issue in older adults. Oral function is essential for nutrient intake and can be restored using dental prosthetic treatments in patients with tooth loss. This study aimed to investigate the relationship between tooth loss and weight loss among the older adults and to evaluate the magnitude of its risk reduction by dental prosthetic treatment. DESIGN: Three-year follow-up longitudinal study based on a self-reported questionnaire. SETTING: Community-dwelling older adults in Japan. PARTICIPANTS: Adults aged 65 and older (n = 53,690). MEASUREMENTS: We used >10% weight loss during follow-up, the number of remaining teeth, and the use of dental prostheses as the outcome variable, exposure variable, and mediator, respectively. We fitted the logistic regression model including possible confounders and calculated the odds ratios (ORs) and 95% confidence intervals (95% CIs) of the controlled direct effect (CDE) at the level of use or nonuse of the dental prosthesis based on a causal mediation analysis framework. Additionally, we calculated the proportion eliminated by the dental prosthesis. RESULTS: The mean age of participants was 72.6 years (1 SD = 5.5), and 47.4% were males. About 5.8% (n = 3132) of them experienced >10% weight loss during the follow-up. Weight loss was observed in 6.8% of the participants with 0-19 remaining teeth and in 4.3% of them with ≥20 remaining teeth. The CDE of 0-19 remaining teeth was greater when no one used dental prosthesis (OR = 1.41; 95% CI = 1.26-1.59) compared with that when all participants used dental prosthesis (OR = 1.26; 95% CI = 1.08-1.46). This indicated that dental prosthesis decreased the risk of weight loss by 37.3%. CONCLUSION: Our study revealed that tooth loss increased the risk of clinically critical levels of weight loss among community-dwelling older adults. However, this risk was reduced by dental prosthetic treatment.

  99. Rapid analysis of Sr-90 in cattle bone and tooth samples by inductively coupled plasma mass spectrometry

    Kazuma Koarai, Makoto Matsueda, Jo Aoki, Kayo Yanagisawa, Motoki Terashima, Kenso Fujiwara, Yasushi Kino, Toshitaka Oka, Atsushi Takahashi, Toshihiko Suzuki, Yoshinaka Shimizu, Mirei Chiba, Ken Osaka, Keiichi Sasaki, Tsutomu Sekine, Manabu Fukumoto, Hisashi Shinoda, Akihiro Kitamura, Hironobu Abe

    JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY　36　(8)　1678-1682　2021/08

    DOI： 10.1039/d1ja00086a 　

    ISSN： 0267-9477

    eISSN： 1364-5544

  100. 災害歯科保健医療研修に活用できる映像媒体の開発

    中久木 康一, 西岡 貴志, 鈴木 敏彦, 洪 光, 小坂 健, 佐々木 啓一

    日本歯科医師会雑誌　74　(4)　418-418　2021/07

    Publisher: (公社)日本歯科医師会

    ISSN： 0047-1763

  101. The mental health problems of public health center staff during the COVID-19 pandemic in Japan International-journal

    Hitomi Usukura, Moe Seto, Yasuto Kunii, Akira Suzuki, Ken Osaka, Hiroaki Tomita

    Asian Journal of Psychiatry　61　102676-102676　2021/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.ajp.2021.102676 　

    ISSN： 1876-2018

  102. The deterioration of oral function and orofacial appearance mediated the relationship between tooth loss and depression among community-dwelling older adults: A JAGES cohort study using causal mediation analysis International-journal

    Taro Kusama, Sakura Kiuchi, Noriko Umehara, Katsunori Kondo, Ken Osaka, Jun Aida

    Journal of Affective Disorders　286　174-179　2021/05/01

    DOI： 10.1016/j.jad.2021.02.071 　

    ISSN： 0165-0327

    eISSN： 1573-2517

  103. Examining the associations between oral health and social isolation: A cross-national comparative study between Japan and England. International-journal

    Shihoko Koyama, Masashige Saito, Noriko Cable, Takaaki Ikeda, Taishi Tsuji, Taiji Noguchi, Hazem Abbas, Isao Miyashiro, Ken Osaka, Katsunori Kondo, Richard G Watt, Jun Aida

    Social science & medicine (1982)　277　113895-113895　2021/04/18

    DOI： 10.1016/j.socscimed.2021.113895 　

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    In Western countries, the most important part of the face in communication is the mouth, whereas it is the eyes in Asian countries; thus oral health could be more important in social interactions in Western countries. Our aim was to examine differences in the association between oral health status and social isolation among older people by comparing Japan and England. We used cross-sectional information obtained from adults aged 65+ in two ongoing prospective cohort studies: The Japan Gerontological Evaluation Study (JAGES, N = 120,195) and the English Longitudinal Study of Ageing (ELSA, N = 3,958). The dependent variable, social isolation score (SIS) was calculated from five factors (marital status, social support from children, social support from family, social support from friends, and social participation). The independent variables were self-reported number of remaining teeth (0, 1-9, 10-19, ≥20) and denture use (≥20 teeth, 10-19 teeth with denture, 10-19 teeth without denture, 0-9 teeth with denture, 0-9 teeth without denture), while the covariates in the model were: sex, age, educational attainment, self-rated health, number of comorbidities, household annual equivalized income, mental health status, daily living activities, and smoking status. We examined associations between oral health status and SIS by applying an ordered logit model by country. Compared to England, more Japanese participants were socially isolated (1.4% vs. 5.8%), but fewer were edentulous (13.1% vs. 7.7%). In both countries, poorer oral health further increased the odds of being socially isolated. Pooled analysis of the ordered logit model with an interaction term showed that the association of number of remaining teeth with SIS was stronger in edentulous participants and in England (odds ratio = 1.50, 95% Confidence interval:1.26-1.80). In both countries, oral health was associated with social isolation; this association could be stronger in England than in Japan.

  104. 腰痛と地域の失業率の関連 962,586人の労働者のマルチレベル分析

    池田 登顕, 杉山 賢明, 相田 潤, 坪谷 透, 小坂 健

    理学療法学　47　(Suppl.1)　18-18　2021/03

    Publisher: (公社)日本理学療法士協会

    ISSN： 0289-3770

    eISSN： 2189-602X

  105. Association between social isolation and depression onset among older adults: a cross-national longitudinal study in England and Japan International-journal

    Taiji Noguchi, Masashige Saito, Jun Aida, Noriko Cable, Taishi Tsuji, Shihoko Koyama, Takaaki Ikeda, Ken Osaka, Katsunori Kondo

    BMJ Open　11　(3)　e045834-e045834　2021/03

    Publisher: BMJ

    DOI： 10.1136/bmjopen-2020-045834 　

    ISSN： 2044-6055

    eISSN： 2044-6055

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    <sec><title>Objective</title>Social isolation is a risk factor for depression in older age. However, little is known regarding whether its impact varies depending on country-specific cultural contexts regarding social relationships. The present study examined the association of social isolation with depression onset among older adults in England, which has taken advanced measures against social isolation, and Japan, a super-aged society with a rapidly increasing number of socially isolated people. </sec><sec><title>Design</title>Prospective longitudinal study. </sec><sec><title>Setting</title>We used data from two ongoing studies: the English Longitudinal Study of Ageing (ELSA) and the Japan Gerontological Evaluation Study (JAGES). </sec><sec><title>Participants</title>Older adults aged ≥65 years without depression at baseline were followed up regarding depression onset for 2 years (2010/2011–2012/2013) for the ELSA and 2.5 years (2010/2011–2013) for the JAGES. </sec><sec><title>Primary outcome measure</title>Depression was assessed with eight items from the Centre for Epidemiologic Studies Depression Scale for the ELSA and Geriatric Depression Scale for the JAGES. Multivariable logistic regression analysis was performed to evaluate social isolation using multiple parameters (marital status; interaction with children, relatives and friends; and social participation). </sec><sec><title>Results</title>The data of 3331 respondents from the ELSA and 33 127 from the JAGES were analysed. Multivariable logistic regression analysis demonstrated that social isolation was significantly associated with depression onset in both countries. In the ELSA, poor interaction with children was marginally associated with depression onset, while in the JAGES, poor interaction with children and no social participation significantly affected depression onset. </sec><sec><title>Conclusions</title>Despite variations in cultural background, social isolation was associated with depression onset in both England and Japan. Addressing social isolation to safeguard older adults’ mental health must be globally prioritised. </sec>

  106. Associations between vision, hearing and tooth loss and social interactions: the JAGES cross-sectional study. International-journal

    Ayaka Igarashi, Jun Aida, Tatsuo Yamamoto, Yoshimune Hiratsuka, Katsunori Kondo, Ken Osaka

    Journal of epidemiology and community health　75　(2)　171-176　2021/02

    DOI： 10.1136/jech-2020-214545 　

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    BACKGROUND: Difficulties in communication due to vision, hearing and tooth loss have a serious impact on health. We compared the association between and attribution of each of these factors on social interaction. METHODS: This cross-sectional study examined data from the 2016 Japan Gerontological Evaluation Study (n=22 295) on community-dwelling people aged ≥65 years in Japan. The dependent variable was the frequency of meeting friends as a measure of social interaction, and less-than-monthly was defined as fewer social interactions. The independent variables were self-reported degrees of vision, hearing (5-point Likert scale) and tooth loss (five categories), with 'poor' or '0 teeth' defined as the worst category. Sex, age, educational attainment, comorbidity and residential area were used as covariates. Poisson regression analysis with multiple imputations was used to estimate the prevalence ratios (PRs) of fewer social interactions by each status. Subsequently, the population attributable fraction (PAF) was calculated to assess the public health impact. RESULTS: The number of participants with fewer social interactions was 5622 (26.9%). Proportions of fewer social interactions among those with the worst vision, hearing and number of teeth categories were 48.7%, 40.1% and 32.0%, respectively. Their corresponding PRs of fewer social interactions were 1.72 (95% CI 0.97 to 3.05), 1.35 (95% CI 0.99 to 1.85) and 1.23 (95% CI 1.10 to 1.37), respectively. The total PAF for vision, hearing and number of teeth was 8.3%, 5.0% and 6.4%, respectively. CONCLUSION: Self-reported vision, hearing and tooth loss were associated with fewer social interactions. The magnitude of these impairments was largest in vision, followed by tooth and hearing loss.

  107. Cross-national comparison of social isolation and mortality among older adults: A 10-year follow-up study in Japan and England.

    Masashige Saito, Jun Aida, Noriko Cable, Paola Zaninotto, Takaaki Ikeda, Taishi Tsuji, Shihoko Koyama, Taiji Noguchi, Ken Osaka, Katsunori Kondo

    Geriatrics & gerontology international　21　(2)　209-214　2021/02

    DOI： 10.1111/ggi.14118 　

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    AIM: Existing evidence links social isolation with poor health. To examine differences in the mortality risk by social isolation, and in socio-economic correlates of social isolation, we analyzed large-scale cohort studies in Japan and England. METHODS: Participants were drawn from the Japan Gerontological Evaluation Study (JAGES) and the English Longitudinal Study of Ageing (ELSA). We analyzed the 10-year mortality among 15 313 JAGES participants and 5124 ELSA respondents. Social isolation was measured by two scales, i.e., scoring the frequency of contact with close ties, and a composite measurement of social isolation risk. We calculated the population attributable fraction, and Cox regression models with multiple imputations were used to estimate hazard ratios (HRs) for mortality due to social isolation. RESULTS: The proportion of those with contact frequency of less than once a month was 8.5% in JAGES and 1.3% in ELSA. Males, older people, those with poor self-rated health, and unmarried people were significantly associated with social isolation in both countries. Both scales showed that social isolation among older adults had a remarkably higher risk for premature death (less frequent contact with others in JAGES: hazard ratio [HR] = 1.18, 95% confidence interval [CI]: 1.05-1.33, in ELSA: HR = 1.27, 95% CI: 0.85-1.89; and high isolation risk score in JAGES: HR = 1.30, 95% CI: 1.12-1.50, in ELSA: HR = 2.05, 95% CI: 1.52-2.73). The population attributable fraction showed less frequent contact with close ties was attributed to about 18 000 premature deaths annually in Japan, in contrast with about 1800 in England. CONCLUSIONS: Negative health impacts of social isolation were higher among older Japanese compared with those in England. Geriatr Gerontol Int 2021; 21: 209-214.

  108. Longitudinal association between oral status and cognitive decline by fixed-effects analysis.

    Sakura Kiuchi, Taro Kusama, Kemmyo Sugiyama, Takafumi Yamamoto, Upul Cooray, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka, Jun Aida

    Journal of epidemiology　32　(7)　330-336　2021/01/30

    DOI： 10.2188/jea.JE20200476 　

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    BackgroundAlthough the feasibility of randomized trials for investigating the long-term association between oral health and cognitive decline is low, deriving causal inferences from observational data is challenging. We aimed to investigate the association between poor oral status and subjective cognitive complaints (SCC) using fixed-effects model to eliminate the confounding effect of unobserved time-invariant factors.MethodsWe used data from Japan Gerontological Evaluation Study (JAGES) which was conducted in 2010, 2013, and 2016. β regression coefficients (95% confidence intervals) were calculated using fixed-effects models to determine the effect of deteriorating oral status on developing SCC. Onset of SCC was evaluated using the Kihon Checklist-Cognitive function score. Four oral status variables were used: awareness of swallowing difficulty, decline in masticatory function, dry mouth, and number of teeth.Results13,594 participants (55.8% women) without SCC at baseline were included. The mean age was 72.4 (SD = 5.1) for men and 72.4 (SD=4.9) for women. Within the 6-year follow-up, 26.6% of men and 24.9% of women developed SCC. The probability of developing SCC was significantly higher when participants acquired swallowing difficulty (β= 0.088; 0.065-0.111 for men, β= 0.077; 0.057-0.097 for women), decline in masticatory function (β=0.039; 0.021-0.057 for men, β= 0.030; 0.013-0.046 for women), dry mouth (β= 0.026; 0.005-0.048 for men, β= 0.064; 0.045-0.083 for women), and tooth loss (β= 0.043; 0.001-0.085 for men, β= 0.058; 0.015-0.102 for women).ConclusionsThe findings suggest that good oral health needs to be maintained to prevent the development of SCC, which increases the risk for future dementia.

  109. 低線量被ばくをした野生動物の歯を用いた被ばく線量推定

    光安 優典, 岡 壽崇, 高橋 温, 小荒井 一真, 木野 康志, 奥津 賢一, 関根 勉, 山下 琢磨, 清水 良央, 千葉 美麗, 鈴木 敏彦, 小坂 健, 佐々木 啓一, 漆原 佑介, 鈴木 正敏, 福本 学, 篠田 壽

    アイソトープ・放射線研究発表会　1　101　2021

    Publisher: 公益社団法人 日本アイソトープ協会

    DOI： 10.50955/happyokai.1.0_101 　

    eISSN： 2436-4487

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    福島原発事故によっておきた環境汚染による被ばくは、これまで知見の少ない領域である。我々は野生動物を用いて生体への影響調査を行っている。行動履歴の不明な野生動物の被ばく線量を推定するために、被ばく量に依存して歯の中に生成、蓄積されるラジカルを電子スピン共鳴（ESR）測定にて測定する手法に着目した。現在、動物の低線量被ばくに適用させるため改良した新手法を開発しており、現段階での測定精度と実際の推定線量被ばく線量について報告する。

  110. Oral Status and Dementia Onset: Mediation of Nutritional and Social Factors

    S. Kiuchi, U. Cooray, T. Kusama, T. Yamamoto, H. Abbas, N. Nakazawa, K. Kondo, K. Osaka, J. Aida

    Journal of Dental Research　101　(4)　420-427　2021

    DOI： 10.1177/00220345211049399 　

    ISSN： 0022-0345

    eISSN： 1544-0591

  111. 口腔の健康状態と共食の機会の関連

    衣川 安奈, 相田 潤, 山本 貴文, 草間 太郎, 木内 桜, 梅原 典子, 小坂 健

    Journal of Epidemiology　31　(Suppl.)　141-141　2021/01

    Publisher: (一社)日本疫学会

    ISSN： 0917-5040

    eISSN： 1349-9092

  112. Majority of New Onset of Dental Caries Occurred from Caries-Free Students: A Longitudinal Study in Primary School Students. International-journal

    Taro Kusama, Hidemi Todoriki, Ken Osaka, Jun Aida

    International journal of environmental research and public health　17　(22)　2020/11/16

    DOI： 10.3390/ijerph17228476 　

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    We examined Rose's axiom that a large number of people exposed to a small risk may generate more cases than a small number exposed to a high risk, using data on caries incidence. This longitudinal study was based on the records of annual dental checks conducted in primary schools in Okinawa, Japan. Participants were students aged 6-11 years at baseline in 2014, and a follow-up survey was conducted after one-year. The outcome variable was the increased number of decayed, missing, and filled teeth (DMFT). The predictor variable was the baseline DMFT score. Gender, grade, and affiliated school variables were adjusted. A negative binomial regression model was used to obtain the estimated increase of DMFT score. Among 1542 students, 1138 (73.8%) were caries-free at baseline. A total of 317 (20.6%) developed new caries during the follow-up. The predicted number of new carious teeth in a caries-free students and students with DMFT = 1 at baseline were 0.26 (95% CI, 0.22-0.31) and 0.45 teeth (95% CI, 0.33-0.56), respectively. However, among the total of 502 newly onset of carious teeth, 300 teeth (59.7%) occurred from the caries-free students at baseline. Hence, prevention strategies should target the low-risk group because they comprise the majority of the population.

  113. 【新型コロナウイルス感染症(COVID-19)と精神科病院】宮城県精神科医療機関新型コロナウイルス感染症対策ネットワークにおける対策指針策定の経緯と意義 コロナ禍が精神医療にもたらした教訓

    富田 博秋, 佐藤 博俊, 角藤 芳久, 國井 泰人, 佐久間 篤, 牧野 祐子, 児玉 栄一, 徳田 浩一, 鈴木 陽, 吉田 眞紀子, 賀来 満夫, 押谷 仁, 小坂 健

    日本精神科病院協会雑誌　39　(11)　1125-1130　2020/11

    Publisher: (公社)日本精神科病院協会

    ISSN： 1347-4103

  114. 【新型コロナウイルス感染症(COVID-19)と精神科病院】宮城県精神科医療機関新型コロナウイルス感染症対策ネットワークにおける対策指針策定の経緯と意義 コロナ禍が精神医療にもたらした教訓

    富田 博秋, 佐藤 博俊, 角藤 芳久, 國井 泰人, 佐久間 篤, 牧野 祐子, 児玉 栄一, 徳田 浩一, 鈴木 陽, 吉田 眞紀子, 賀来 満夫, 押谷 仁, 小坂 健

    日本精神科病院協会雑誌　39　(11)　1125-1130　2020/11

    Publisher: (公社)日本精神科病院協会

    ISSN： 1347-4103

  115. Effect of Copayment on Dental Visits: A Regression Discontinuity Analysis

    U. Cooray, J. Aida, R. G. Watt, G. Tsakos, A. Heilmann, H. Kato, S. Kiuchi, K. Kondo, K. Osaka

    Journal of Dental Research　99　(12)　1356-1362　2020/11/01

    DOI： 10.1177/0022034520946022 　

    ISSN： 0022-0345

    eISSN： 1544-0591

  116. Causal effect of deteriorating socioeconomic circumstances on new-onset arthritis and the moderating role of access to medical care: A natural experiment from the 2011 great east Japan earthquake and tsunami. International-journal

    Takaaki Ikeda, Jun Aida, Ichiro Kawachi, Katsunori Kondo, Ken Osaka

    Social science & medicine (1982)　264　113385-113385　2020/11

    DOI： 10.1016/j.socscimed.2020.113385 　

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    Socioeconomic disadvantage is a risk factor for arthritis, but its causal relationship remains unclear. This study examined the causal relationship between socioeconomic circumstances and new-onset arthritis by taking advantage of the "natural experiment" that resulted from the Great East Japan Earthquake and Tsunami. The baseline survey was conducted in August 2010, 7 months before the disaster. Self-reported questionnaires were mailed to all eligible residents of Iwanuma City in Miyagi Prefecture. The earthquake and tsunami occurred on March 11, 2011. The follow-up survey was conducted in October 2013, as well as the gathering of information about disaster damage (housing damage and subjective deterioration of economic circumstances) and health-related information. We used a two-stage least squares instrumental variable model to analyze 2360 survivors who did not have arthrosis at baseline, of whom 95 (4.0%) developed arthritis over the 2.5-year follow-up period. We used the linear probability model for the estimations. Our results revealed that both the subjective deterioration of economic circumstances and housing damage were associated with the development of arthritis (95% confidence interval [CI], 0.08 [0.03-0.12] and 0.02 [0.01-0.04], respectively). In addition, we also found that the disruption of access to orthopedics was associated with the development of arthritis. Our findings added robust evidence of the causal relationship between worsening economic circumstances and the development of arthritis. Our study emphasized the importance of recovery as well as the establishment of the post-disaster orthopedic medical system in the aftermath of a disaster.

  117. 口腔機能と現在歯数の死亡との関連 地域在住高齢者におけるJAGES縦断研究

    梅原 典子, 相田 潤, 山本 貴文, 草間 太郎, 木内 桜, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　79回　269-269　2020/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  118. 都道府県間の健康寿命の差に関連する要因の検討

    星 真奈実, 草間 太郎, 小坂 健, 相田 潤

    日本公衆衛生学会総会抄録集　79回　289-289　2020/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  119. 口腔と認知症発症の関連のメカニズム 媒介分析による検討

    木内 桜, 相田 潤, 山本 貴文, 草間 太郎, 梅原 典子, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　79回　423-423　2020/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  120. Change in the prevalence of social isolation among the older population from 2010 to 2016: A repeated cross-sectional comparative study of Japan and England. International-journal

    Taishi Tsuji, Masashige Saito, Takaaki Ikeda, Jun Aida, Noriko Cable, Shihoko Koyama, Taiji Noguchi, Ken Osaka, Katsunori Kondo

    Archives of gerontology and geriatrics　91　104237-104237　2020/08/22

    DOI： 10.1016/j.archger.2020.104237 　

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    OBJECTIVE: To compare the change in the prevalence of social isolation from 2010 to 2016 between older populations in Japan, the most aging and socially isolated country, and England, a country known for advanced social isolation measures. METHODS: Surveys from the Japan Gerontological Evaluation Study (JAGES) and the English Longitudinal Study of Aging (ELSA) included 70,751 and 4134 participants, respectively, aged 65 years or older in 2010 and 94,228 and 4295 participants in 2016. We assessed the social isolation of respondents on a scale from 0 to 5 points based on lack of social interactions with a spouse or partner, children, relatives, or friends and nonparticipation in any organization. RESULTS: Results of two-way analysis of variance confirmed significant interactions (nation × period) in men and women aged 65-74 years and women aged 75 years or older. In JAGES, all had higher scores in 2016 compared to 2010 (1.64-1.76, 1.28-1.36, and 1.55-1.60 points, respectively). Furthermore, the proportions of those with lack of interaction with relatives increased (52.7%-58.9%, 31.5%-41.1%, and 25.2%39.2%, respectively). In ELSA, women aged 75 years or older demonstrated a significantly lower mean score in 2016 than in 2010 (1.40 vs. 1.21). No significant changes were observed in other groups. CONCLUSION: Social isolation among older adults is more severe in Japan than in England. The difference has widened, especially for women and younger older adults. This is attributed to the weakening relationships with relatives in Japan.

  121. Association between social isolation and smoking in Japan and England. Peer-reviewed

    Takaaki Ikeda, Noriko Cable, Masashige Saito, Shihoko Koyama, Taishi Tsuji, Taiji Noguchi, Katsunori Kondo, Ken Osaka, Jun Aida

    Journal of epidemiology　31　(10)　523-529　2020/08/08

    DOI： 10.2188/jea.JE20200138 　

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    BACKGROUND: Existing evidence suggest that those who are socially isolated are at risk for taking up or continuing smoking. This study investigated country-based differences in social isolation and smoking status. METHODS: We performed a repeated cross-sectional study using two waves of data from two ongoing aging studies: the English Longitudinal Study of Ageing and the Japan Gerontological Evaluation Study. Participants from both studies aged ≥65 years old were included. We applied a multilevel Poisson regression model to examine the association between social isolation and smoking status and adjusted for individual sociodemographic characteristics. We used the social isolation index which comprises the following domains: marital status; frequency of contact with friends, family, and children; and participation in social activities. Interaction terms between each country and social isolation were also entered into the mode. RESULTS: After exclusion of never smokers, we analyzed 75,905 participants (7,092 for ELSA and 68,813 for JAGES, respectively). Taking ex-smokers as the reference, social isolation was significantly associated with current smoking; the prevalence ratios (PRs; 95% credible intervals [CrIs]) were 1.06 (1.05-1.08) for men and 1.08 (1.04-1.11) for women. Taking Japan as a reference, the interaction term between country and social isolation was significant for both sexes, with increased PRs (95% CrIs) of 1.32 (1.14-1.50) for men and 1.30 (1.11-1.49) for women in England. CONCLUSIONS: Older people who were less socially isolated were more likely to quit smoking in England than in Japan, possibly explained by the strict tobacco control policies in England.

  122. Wider Dental Care Coverage Associated with Lower Oral Health Inequalities: A Comparison Study between Japan and England. International-journal Peer-reviewed

    Kanade Ito, Noriko Cable, Tatsuo Yamamoto, Kayo Suzuki, Katsunori Kondo, Ken Osaka, Georgios Tsakos, Richard G Watt, Jun Aida

    International journal of environmental research and public health　17　(15)　2020/07/31

    DOI： 10.3390/ijerph17155539 　

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    Countries with different oral health care systems may have different levels of oral health related inequalities. We compared the socioeconomic inequalities in oral health among older adults in Japan and England. We used the data for adults aged 65 years or over from Japan (N = 79,707) and England (N = 5115) and estimated absolute inequality (the Slope Index of Inequality, SII) and relative inequality (the Relative Index of Inequality, RII) for edentulism (the condition of having no natural teeth) by educational attainment and income. All analyses were adjusted for sex and age. Overall, 14% of the Japanese subjects and 21% of the English were edentulous. In both Japan and England, lower income and educational attainment were significantly associated with a higher risk of being edentulous. Education-based SII in Japan and England were 9.9% and 26.7%, respectively, and RII were 2.5 and 4.8, respectively. Income-based SII in Japan and England were 9.2% and 14.4%, respectively, and RII were 2.1 and 1.9, respectively. Social inequalities in edentulous individuals exist in both these high-income countries, but Japan, with wider coverage for dental care, had lower levels of inequality than England.

  123. Heated Tobacco Products Have Reached Younger or More Affluent People in Japan. Peer-reviewed

    Ayaka Igarashi, Jun Aida, Taro Kusama, Takahiro Tabuchi, Toru Tsuboya, Kemmyo Sugiyama, Takafumi Yamamoto, Ken Osaka

    Journal of epidemiology　31　(3)　187-193　2020/03/28

    DOI： 10.2188/jea.JE20190260 　

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    BACKGROUND: The trend of the diffusion of heated tobacco products (HTPs) is a great concern because HTPs have become available worldwide. This study examined the sociodemographic characteristics of HTPs users in Japan, which were first launched. METHODS: This cross-sectional study used data from an online survey conducted in 2017. A total of 4,926 participants, aged 20-69 years, were included. The dependent variable was the type of tobacco products used. The independent variables were age and equivalent income. Two analyses estimated the odds ratios (ORs) for 1) being smokers compared to "non-smokers", and 2) being "HTP smokers" compared to "only combustible cigarette smokers." Analyses were stratified by sex. Educational attainment and occupation were also used in the sensitivity analyses. RESULTS: The percentages of "non-smokers," "only combustible cigarette smokers," and "HTP smokers" were 82.8%, 14.2%, and 3.0%, respectively. When compared to the oldest participants (aged 60-69), the youngest participants (aged 20-29) tended to be "HTP smokers" (OR=7.90 (95% CI=3.09-20.22) for men and 9.28 (2.14-40.28) for women). Compared to participants with the lowest incomes (<2 million), those with the highest incomes (≥4 million) tended to use HTPs (OR=2.93 (95% CI=1.56-5.49) in men and 1.82 (0.73-4.54) in women). These trends were consistent when analyses included only smokers. There were consistent results in other SES measurements; educational attainment and occupation. CONCLUSIONS: Younger or more affluent people tended to use HTPs, although smoking rates among these populations were generally lower. New tobacco control efforts are required.

  124. Is the Association between Green Tea Consumption and the Number of Remaining Teeth Affected by Social Networks?: A Cross-Sectional Study from the Japan Gerontological Evaluation Study Project. International-journal Peer-reviewed

    Manami Hoshi, Jun Aida, Taro Kusama, Takafumi Yamamoto, Sakura Kiuchi, Tatsuo Yamamoto, Toshiyuki Ojima, Katsunori Kondo, Ken Osaka

    International journal of environmental research and public health　17　(6)　2020/03/20

    DOI： 10.3390/ijerph17062052 　

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    Consumption of green tea without sugar, as well as social networks, are associated with a lower risk of tooth loss. There is a possibility of confounding both factors because tea is often drunk with friends. Therefore, the present study aimed to examine whether green tea consumption is beneficially associated with the number of remaining teeth, while considering social networks. This cross-sectional study was based on the Japan Gerontological Evaluation Study (JAGES) in 2016. Self-administered questionnaires containing questions about green tea consumption were mailed to 34,567 community-dwelling residents aged ≥ 65 years. We used the number of remaining teeth as a dependent variable, and green tea consumption and the number of friends met over the past month (social network size) as independent variables. Linear regression models with multiple imputation were used. A total of 24,147 people responded (response rate = 69.9%), and 22,278 valid data were included into our analysis. Participants' mean age was 74.2 years (standard deviation = 6.3), and 45.9% were men. Among the participants, 52.2% had ≥ 20 teeth, 34.2% drank 2-3 cups of green tea per day, and 32.6% met ≥ 10 people over the past month. After adjusting for all potential confounders, both higher green tea consumption and a larger social network size were associated with more remaining teeth (both p for trend < 0.001). The association of green tea was greater among those with smaller social networks (p for interaction < 0.05). The protective association of green tea was remarkable among people with smaller social networks.

  125. Effects of Community Water Fluoridation on Dental Caries Disparities in Adolescents. International-journal

    Go Matsuo, Jun Aida, Ken Osaka, Richard Gary Rozier

    International journal of environmental research and public health　17　(6)　2020/03/19

    DOI： 10.3390/ijerph17062020 　

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    Despite improvements in the prevalence of dental caries, disparities are still observed globally and in the U.S. This study examined whether community water fluoridation (CWF) reduced dental caries disparities in permanent teeth of 10- to 19-year-old schoolchildren in North Carolina. We used cross-sectional data representing K-12 schoolchildren in North Carolina (NC) public schools. A poisson regression model was used to determine whether the association between children's parental educational attainment and the prevalence of dental caries of children differed by children's lifetime CWF exposure. We analyzed data on 2075 students. Among the children without any CWF exposure in their life, statistically significant caries disparities by parental educational attainment were observed. Compared to the children of parents with more than high school education, the relative risk for those with a parent with a high school education was 1.16 (95% CI = 1.01, 1.33) and those with less than a high school education was 1.27 (95% CI = 1.02, 1.60). In contrast, these disparities were not observed among children exposed to CWF throughout their lives. Socioeconomic disparities in dental caries were not observed among 10-19-year-old schoolchildren with lifetime CWF exposure. CWF seemed to reduce dental caries disparities.

  126. Determinants of Increased Tobacco Consumption Following a Major Disaster. International-journal Peer-reviewed

    Shihoko Koyama, Takahiro Tabuchi, Jun Aida, Ken Osaka, Isao Miyashiro

    Disaster medicine and public health preparedness　15　(1)　1-5　2020/03/18

    DOI： 10.1017/dmp.2019.160 　

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    OBJECTIVES: Experience of a major disaster can potentially impact on tobacco consumption. Our objective was to explore the determinants of increasing tobacco consumption after the Great East Japan Earthquake (GEJE). METHODS: We conducted a cross-sectional study using data from the Miyagi Prefectural Health Survey 2014: a total of 2632 people were randomly selected from residents aged ≥20 years in Miyagi, Japan. Of 2443 respondents (response rate = 92.8%), 551 current smokers (411 men) were included in the analysis. Odds ratios (OR) and 95% confidence interval (CI) for increasing tobacco consumption were calculated using multivariable logistic regression models including variables of age, sex, disaster-related job status change, education status, self-rated health, and age at smoking initiation. RESULTS: After adjustments for all variables, significantly higher ORs for increasing tobacco consumption after the GEJE were observed in women (OR = 1.87; 95% CI = 1.10-3.15), 20-39 years old (OR = 5.18; 95% CI = 2.28-11.75), 40-59 years old (OR = 3.97; 95% CI = 1.76-8.94) and respondents who had lost their jobs (OR = 3.42; 95% CI = 1.06-11.05) than the counterpart categories. CONCLUSIONS: This study found 3 determinants of increasing tobacco consumption after a major disaster: being a woman, being of working age, and experiencing disaster-related job loss.

  127. う蝕発症における「予防のパラドックス」 小学生を対象とした縦断研究による検討

    草間 太郎, 相田 潤, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　109-109　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  128. 口腔の健康と社会参加の双方向性の関連の検討

    木内 桜, 相田 潤, 草間 太郎, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　122-122　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  129. OECD加盟国における砂糖消費量とう蝕有病割合の関連

    塩田 千尋, 相田 潤, 山本 貴文, 永井 雅人, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　151-151　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  130. OECD加盟国における歯科医療費の自己負担割合と年間歯科受診回数の関連性

    中川 茉莉, 相田 潤, 山本 貴文, 永井 雅人, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　168-168　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  131. 医療施設数と健康寿命との関連 政府統計を用いた都道府県別分析

    星 真奈実, 相田 潤, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　170-170　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  132. 業種別にみた職場における受動喫煙状況

    五十嵐 彩夏, 相田 潤, 草間 太郎, 小坂 健

    日本公衆衛生雑誌　67　(3)　183-190　2020/03

    Publisher: 日本公衆衛生学会

    ISSN： 0546-1766

    eISSN： 2187-8986

  133. 口腔の健康と社会参加の双方向性の関連の検討 Peer-reviewed

    木内 桜, 相田 潤, 草間 太郎, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　122-122　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  134. キーワードツールを用いた『フッ素』のインターネット検索の推移の分析 Peer-reviewed

    菅原 理奈, 相田 潤, 山本 貴文, 永井 雅人, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　150-150　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  135. OECD加盟国における砂糖消費量とう蝕有病割合の関連 Peer-reviewed

    塩田 千尋, 相田 潤, 山本 貴文, 永井 雅人, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　151-151　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  136. OECD加盟国における歯科医療費の自己負担割合と年間歯科受診回数の関連性 Peer-reviewed

    中川 茉莉, 相田 潤, 山本 貴文, 永井 雅人, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　168-168　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  137. 医療施設数と健康寿命との関連 政府統計を用いた都道府県別分析 Peer-reviewed

    星 真奈実, 相田 潤, 草間 太郎, 木内 桜, 小坂 健

    口腔衛生学会雑誌　70　(増刊)　170-170　2020/03

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  138. External exposure dose estimation by electron spin resonance technique for wild Japanese macaque captured in Fukushima Prefecture Peer-reviewed

    Toshitaka Oka, Atsushi Takahashi, Kazuma Koarai, Yusuke Mitsuyasu, Yasushi Kino, Tsutomu Sekine, Yoshinaka Shimizu, Mirei Chiba, Toshihiko Suzuki, Ken Osaka, Keiichi Sasaki, Yusuke Urushihara, Satoru Endo, Masatoshi Suzuki, Hisashi Shinoda, Manabu Fukumoto

    Radiation Measurements　134　106315-106315　2020/03

    Publisher: Elsevier BV

    DOI： 10.1016/j.radmeas.2020.106315 　

    ISSN： 1350-4487

  139. [Differences in nonsmokers' exposure to secondhand smoke at the workplace across job categories in Japan: A cross-sectional study].

    Ayaka Igarashi, Jun Aida, Taro Kusama, Ken Osaka

    [Nihon koshu eisei zasshi] Japanese journal of public health　67　(3)　183-190　2020

    DOI： 10.11236/jph.67.3_183 　

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    Objectives Differences in exposure to secondhand smoke at the workplace, based on job category, have been assessed in some countries. While differences due to socioeconomic status have been assessed in Japan, few studies have been conducted to examine differences across job categories. We aimed to clarify the differences in nonsmokers' exposure to secondhand smoke at the workplace across job categories in Japan.Methods This cross-sectional study used data from an online survey conducted in 2017. A total of 1,739 participants, aged 20-69 years, were included. The dependent variable was exposure to secondhand smoke at the workplace, whereas the independent variable was job category, which was classified into the following 7 categories: 1) Management, Professional, and Technical; 2) Clerical; 3) Sales and Service; 4) Security; 5) Agriculture, Forestry, and Fishery; 6) Production Process, Transport, Cleaning, Packaging, etc.; and 7) Transportation, Machine Operation, Construction, and Mining. Analysis included estimates of the prevalence ratios (PRs) for the differences in exposure to secondhand smoke based on job category. In the analyses, sex, age, educational status, income, smoking environment at business, and awareness of secondhand smoke were considered covariates.Results The mean age of the participants was 43.3 years (SD=11.9); men constituted 60.5% of the study participants. A total of 529 individuals (30.4%) were exposed to secondhand smoke at the workplace in the past month. Of these, 171 (27.9%), 155 (27.1%), 116 (33.7%), 10 (45.5%), 7 (31.8%), 39 (34.5%), and 31 (58.5%) were found from the 1st to the 7th category, respectively. In the multivariate analysis, PRs (95% confidence interval) of exposure to secondhand smoke at the workplace among non-smokers were 1.27 (1.04-1.56), 1.61 (1.02-2.56), and 1.75 (1.33-2.31) for the Sales and Service category; Security category; and Transportation, Machine Operation, Construction, and Mining category, respectively, compared to the Clerical category.Conclusion Certain job categories may not be able to benefit from secondhand smoke prevention measures, although the measures have been promoted by the revised Health Promotion Act. It is, thus, necessary to monitor the situation of exposure to secondhand smoke at the workplace across diverse settings.

  140. [The present situation and corresponding issues in the preparedness and response management in a health crisis in Japan: A report by the Monitoring Report Committee of the Japanese Society of Public Health].

    Yoshimi Furuya, Katsumi Nakase, Shinji Takemura, Manabu Hasegawa, Jun Tomio, Katsumi Kataoka, Shuichi Sato, Takashi Nagata, Tatsuhiko Kubo, Ken Osaka, Toshiyasu Teratani, Koji Wada, Keisuke Kubo, Sakiko Kanbara

    [Nihon koshu eisei zasshi] Japanese journal of public health　67　(8)　493-500　2020

    DOI： 10.11236/jph.67.8_493 　

  141. Trajectory of evacuees' health condition after the Great East Japan Earthquake: Health survey of residents in prefabricated temporary housing and private rented housing in the Miyagi prefecture

    KUSAMA Taro, AIDA Jun, HIGASHI Daisuke, SATO Yaeko, ONODERA Tamotsu, SUGIYAMA Kemmyo, TSUBOYA Toru, TAKAHASHI Tatsuya, OSAKA Ken

    Nihon Koshu Eisei Zasshi(JAPANESE JOURNAL OF PUBLIC HEALTH)　67　(1)　26-32　2020/01

    Publisher: Japanese Society of Public Health

    DOI： 10.11236/jph.67.1_26 　

    ISSN： 0546-1766

    eISSN： 2187-8986

  142. Income or education, which has a stronger association with dental implant use in elderly people in Japan? International-journal Peer-reviewed

    Hazem Abbas, Jun Aida, Masashige Saito, Georgios Tsakos, Richard G Watt, Shigeto Koyama, Katsunori Kondo, Ken Osaka

    International dental journal　69　(6)　454-462　2019/12

    DOI： 10.1111/idj.12491 　

    ISSN： 0020-6539

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    OBJECTIVES: Although inequalities in dental implant use based on educational level have been reported, no study has used income as a proxy for the socioeconomic status. We examined: (i) income inequalities in implant use; and (ii) whether income or education has a stronger association with implant use in elder Japanese. METHODS: In 2016, a self-reported questionnaire was mailed to participants aged 65 years or older living across Japan as part of the ongoing Japan Gerontological Evaluation Study. We used data from 84,718 respondents having 19 or fewer teeth. After multiple imputation, multi-level logistic regression estimated the association of dental implant use with equivalised income level and years of formal education. Confounders were age, sex, and density of dental clinics in the residential area. RESULTS: 3.1% of respondents had dental implants. Percentages of dental implant use among the lowest (≤ 9 years) and highest (≥ 13 years) educational groups were 1.8 and 5.1, respectively, and among the lowest (0 < 12.2 '1,000 USD/year') and highest (≥ 59.4 '1,000 USD/year') income groups were 1.7 and 10.4, respectively. A fully adjusted model revealed that both income and education were independently associated with dental implant use. Odds ratios for implant use in the highest education and income groups were 2.13 [95% CI = 1.94-2.35] and 4.85 [95% CI = 3.78-6.22] compared with the lowest education and income groups, respectively. From a model with standardised variables, income showed slightly stronger association than education. CONCLUSION: This study reveals a public health problem that even those with the highest education but low income might have limited accessibility to dental implant services.

  143. Psychosocial Factors and Knee Pain Among Older People in Japan: The JAGES Cross-Sectional Study. International-journal Peer-reviewed

    Takaaki Ikeda, Jun Aida, Toru Tsuboya, Kemmyo Sugiyama, Katsunori Kondo, Ken Osaka

    The Clinical journal of pain　35　(12)　983-988　2019/12

    DOI： 10.1097/AJP.0000000000000761 　

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    OBJECTIVES: Psychosocial factors are known to affect knee pain. However, the magnitude of depression on the associations between socioeconomic status (SES) and knee pain in older individuals remains unknown. This study aimed to determine (1) the associations between SES and knee pain and (2) how depression mediates the associations between SES and knee pain. MATERIALS AND METHODS: We conducted a survey across 30 Japanese municipalities to collect cross-sectional data. Functionally independent, community-dwelling adults aged 65 years or above (n=26,037) were eligible for the study. Self-reported knee pain in the past year was used as the dependent variable. Past occupation and equivalized household income were separately added to the models as independent variables. Poisson regression analysis was used to examine the associations between SES and knee pain, adjusting for covariates. Mediation analysis was applied to estimate how depression explains these associations. RESULTS: The 1-year prevalence of knee pain was 56.0% in our study population. We found that income levels were significantly associated with knee pain: the lowest income level was more prone to experience knee pain compared with the highest income level at a prevalence ratio of 1.22 (95% confidence interval, 1.15-1.28). Depression explained 36.8% of the association of income with knee pain in females and 41.9% in males. DISCUSSION: Significant socioeconomic inequalities were observed regarding knee pain among older individuals in Japan. Depression somewhat explained the association between SES and knee pain.

  144. Are social inequalities in influenza vaccination coverage in Japan reduced by health policy? International-journal Peer-reviewed

    Tselmuun Chinzorig, Kemmyo Sugiyama, Jun Aida, Toru Tsuboya, Ken Osaka

    Preventive medicine reports　16　100959-100959　2019/12

    DOI： 10.1016/j.pmedr.2019.100959 　

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    Influenza vaccination is effective to prevent influenza infection. However, findings about association between socioeconomic status and influenza vaccination coverage are controversial. Online survey was conducted among 4995 participants between 20 and 69 years of age throughout Japan, January 2017. We asked about history of receiving vaccination in previous year and socioeconomic status, with their reasons for having vaccination or not. Age stratified multivariable logistic regression model was conducted to estimate the odds ratio (ORs) and 95% confidence intervals (CIs) of receiving vaccine for each educational level and income. Sex, self-reported health status, marital status and income were included as covariates. The rate for receiving influenza vaccine among ≤64 year-olds and ≥65 year-olds was 32.9% and 35.4%, respectively. Among younger adults, vaccination varied by each education: junior high school, 23.6%; senior high school, 27.2%; college, 32.6%; university, 36.2%; and graduate school, 39.8%. Compared to junior high school, those from graduate school tended to be more vaccinated (OR1.88, 95%CI 1.07-3.24). On the contrary, those aged above ≥65 years old received vaccination with no significant differences across education. Likewise, among respondents aged ≤64 year-olds, income was significantly associated with influenza vaccination. Despite being "Managed by school or company" (32.5%), having "No particular reason" was the frequent reason for both receiving influenza vaccination (23.8%) or not (34.3%). Adults with higher educational level were significantly more likely to receive vaccination. Subsidizing influenza vaccination may reduce inequality in receiving vaccination for adults. Strengthening vaccination through various approaches is necessary, such as managing by school or company.

  145. Income and education are associated with transitions in health status among community-dwelling older people in Japan: the JAGES cohort study. International-journal Peer-reviewed

    Takaaki Ikeda, Toru Tsuboya, Jun Aida, Yusuke Matsuyama, Shihoko Koyama, Kemmyo Sugiyama, Katsunori Kondo, Ken Osaka

    Family practice　36　(6)　713-722　2019/11/18

    DOI： 10.1093/fampra/cmz022 　

    ISSN： 0263-2136

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    BACKGROUND: Health inequalities are an emerging issue in ageing societies, but inequalities in pre-frailty, which is suffered by almost half of older people, are mostly unknown. OBJECTIVE: This study aimed to determine the association between the socio-economic status (SES) and changes across pre-frailty, frailty, disability and all-cause mortality. METHODS: We conducted a prospective cohort study across 23 Japanese municipalities between 2010 and 2013. Functionally independent community-dwelling older adults aged ≥65 years (n = 65 952) in 2010 were eligible for the study. The baseline survey was conducted from 2010 to 2012, and the self-reporting questionnaires were mailed to 126 438 community-dwelling older adults [64.8% (81 980/126 438) response rate]. The follow-up survey was conducted in 2013. Overall, 65 952 individuals were followed up [80.4% (65 952/81 980) follow-up rate]. The health status was classified into five groups: robust; pre-frailty; frailty; disability and death. We conducted three multinomial logistic regression models stratified by the initial disability status. Educational attainment and equivalized household income were separately added to the models as exposures after adjusting for covariates. RESULTS: Participants with the lowest educational level were less likely to recover from pre-frailty to robust compared with those with the highest level [odds ratio (OR) (95% confidence interval (CI)) = 0.84 (0.76-0.93)]. The participants with the lowest income level were also less likely to recover from pre-frailty to robust compared with those with the highest level [OR (95% CI) = 0.80 (0.69-0.91)]. CONCLUSIONS: Older individuals with a lower SES were less likely to recover from a pre-frailty status.

  146. Does public transportation reduce inequalities in access to dental care among older adults? Japan Gerontological Evaluation Study. Peer-reviewed

    Kiuchi S, Aida J, Kusama T, Yamamoto T, Hoshi M, Yamamoto T, Kondo K, Osaka K

    Community dentistry and oral epidemiology　48　(2)　109-118　2019/11

    DOI： 10.1111/cdoe.12508 　

    ISSN： 0301-5661

    eISSN： 1600-0528

  147. The Contextual Effect of Area-Level Unemployment Rate on Lower Back Pain: A Multilevel Analysis of Three Consecutive Surveys of 962,586 Workers in Japan. International-journal Peer-reviewed

    Takaaki Ikeda, Kemmyo Sugiyama, Jun Aida, Toru Tsuboya, Ken Osaka

    International journal of environmental research and public health　16　(20)　2019/10/20

    DOI： 10.3390/ijerph16204016 　

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    This study examined the associations between area-level unemployment rates and lower back pain using large-scale data provided by the Japanese working population. We analyzed data from a nationally representative, repeated, cross-sectional study across three waves from 2010, 2013, and 2016 in 47 Japanese subnational level areas. Workers aged 18-64 years (n = 962,586) were eligible to participate in the study. A multilevel logistic model was used to examine the association between the unemployment rate and lower back pain. The self-report of lower back pain was a dependent variable. The prefecture-level unemployment rate was analyzed as an independent variable, adjusted for individual-level covariates (e.g., gender, age, socioeconomic status). After adjusting for all covariates, the main effect of the prefecture-level unemployment rate was statistically significant: the odds ratio (OR) (95% credible interval (CrI)) was 1.01 (1.002, 1.03). Additionally, the OR (95% CrI) for the interaction between gender and the prefecture-level unemployment rate was 1.02 (1.01, 1.03) indicating that women were more affected by area-level employment status than men. In conclusion, a significant association between the unemployment rate and lower back pain was observed in the Japanese working population. Women were more sensitive to the unemployment rate.

  148. Does the Type of Temporary Housing Make a Difference in Social Participation and Health for Evacuees of the Great East Japan Earthquake and Tsunami? A Cross-Sectional Study. Peer-reviewed

    Taro Kusama, Jun Aida, Kemmyo Sugiyama, Yusuke Matsuyama, Shihoko Koyama, Yukihiro Sato, Takafumi Yamamoto, Ayaka Igarashi, Toru Tsuboya, Ken Osaka

    Journal of epidemiology　29　(10)　391-398　2019/10/05

    DOI： 10.2188/jea.JE20180080 　

    ISSN： 0917-5040

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    BACKGROUND: Although the majority of survivors of the huge Great East Japan Earthquake and Tsunami evacuated to two types of temporary housings, prefabricated housing and rented housing, health effects of these different environments were unclear. We examined whether prevalent social participation in prefabricated housing brought larger health benefits than in rented housing using the largest health survey data of the disaster survivors. METHODS: This cross-sectional study used a 2012 survey by the Miyagi Prefectural Government, in which almost all of evacuees were targeted (response rate: 61.6%). Self-rated health (SRH) and psychological distress measured via K6 score were the dependent variables, and social participation was the independent variable. Odds ratios of the social participation on health variables were estimated using logistic regression models. To assess the contribution of social participation, the population attributable fraction (PAF) was estimated. RESULTS: The participants lived in prefabricated and rented housing numbered 19,726 and 28,270, respectively. Participants in prefabricated housing had poorer SRH and K6 than those in rented housing. The proportions of participants engaging in social participation of prefabricated and rented housing were 38.2% and 15.4%, respectively. The absence of social participation was significantly associated with poor SRH and K6 among participants in both housing types. The PAFs of social participation with good SRH were 39.5% in prefabricated housing and 14.4% in rented housing. For K6, the PAFs were 47.1% and 19.5% in prefabricated and rented housing, respectively. CONCLUSION: Compared to the residents in rented housing, residents in prefabricated housing had more frequent opportunities for social participation, which was associated with larger health benefits.

  149. Inequalities in caries experience among mongolian children

    Tselmuun Chinzorig, Jun Aida, Upul Cooray, Tsengelsaikhan Nyamdorj, Soyolmaa Mashbaljir, Ken Osaka, Ariuntuul Garidkhuu

    International Journal of Environmental Research and Public Health　16　(20)　2019/10/02

    DOI： 10.3390/ijerph16203892 　

    ISSN： 1661-7827

    eISSN： 1660-4601

  150. 宮城県内の東日本大震災被災者の健康状態 平成30年度宮城県被災者健康調査より

    東 大介, 小野寺 保, 草間 太郎, 杉山 賢明, 坪谷 透, 小坂 健, 相田 潤

    日本公衆衛生学会総会抄録集　78回　511-511　2019/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  151. 口腔機能と認知機能の因果関係の研究 固定効果分析による検討 Peer-reviewed

    木内 桜, 相田 潤, 杉山 賢明, 山本 貴文, 草間 太郎, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　78回　243-243　2019/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  152. Infrequent Denture Cleaning Increased the Risk of Pneumonia among Community-dwelling Older Adults: A Population-based Cross-sectional Study. Peer-reviewed

    Kusama T, Aida J, Yamamoto T, Kondo K, Osaka K

    Scientific reports　9　(1)　13734　2019/09

    DOI： 10.1038/s41598-019-50129-9 　

    ISSN： 2045-2322

  153. 福島県で捕獲したニホンザルの電子スピン共鳴法による外部被ばく線量推定

    岡 壽崇, 高橋 温, 小荒井 一真, 光安 優典, 木野 康志, 関根 勉, 清水 良央, 千葉 美麗, 鈴木 敏彦, 小坂 健, 佐々木 啓一, 漆原 佑介, 鈴木 正敏, 篠田 壽, 福本 学

    日本分析化学会講演要旨集　68年会　268-268　2019/08

    Publisher: (公社)日本分析化学会

  154. Cohort Study on Laryngeal Cough Reflex, Respiratory Disease, and Death: A Mediation Analysis. International-journal Peer-reviewed

    Takafumi Yamamoto, Jun Aida, Tomohiro Shinozaki, Toru Tsuboya, Kemmyo Sugiyama, Tatsuo Yamamoto, Katsunori Kondo, Keiichi Sasaki, Ken Osaka

    Journal of the American Medical Directors Association　20　(8)　971-976　2019/08

    DOI： 10.1016/j.jamda.2019.01.155 　

    ISSN： 1525-8610

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    OBJECTIVE: To estimate quantitatively whether the presence of cough associated with dysphagia (laryngeal cough reflex) increased mortality through respiratory disease among community-dwelling older Japanese. DESIGN: A 6-year follow-up prospective cohort study (from 2010 to 2017). SETTING: Thirteen municipalities in Japan. PARTICIPANTS: Community-dwelling individuals aged 65 years or older (N = 32,682). MEASURES: The baseline survey was conducted through self-reported questionnaire. Exposure was experience of laryngeal cough reflex while drinking. The outcome was all-cause mortality. All covariates were selected from demographic, socioeconomic variables, baseline health and functional status, smoking, alcohol drinking, number of remaining teeth, and stroke. The mediator variable was respiratory disease. Cox proportional hazards regression was used to estimate hazard ratios (HRs) for mortality. Parametric mediation analysis was conducted to estimate the effect of laryngeal cough reflex on the mean residual time to death mediated through respiratory disease. RESULTS: Among the 32,682 participants (mean age = 74.1 years, standard deviation = 5.9 years), 5550 (17.0%) experienced laryngeal cough reflex at baseline. A total of 4037 deaths occurred. Crude mortality rates of the participants with or without laryngeal cough reflex were 16.3% and 11.6%, respectively. After adjusting for covariates, laryngeal cough reflex [HR = 1.10; 95% confidence interval (CI) = 1.02 to 1.19] and respiratory disease (HR = 1.80; 95% CI = 1.62 to 2.00) were associated with mortality. The mediation analysis showed that respiratory disease significantly (P < .001) and partially mediated the association between laryngeal cough reflex, an indicator of 1 or more conditions such as chronic aspiration and mortality. CONCLUSIONS/IMPLICATIONS: Laryngeal cough reflex was a prevalent condition, and it was associated with all-cause mortality in community-dwelling older Japanese individuals. Clinicians could contribute to reduce mortality risk by addressing swallowing function problems using their interprofessional collaboration team (speech-language pathologist, dentist, rehabilitation doctor, otolaryngologist, respiratory physician, and gerontologist).

  155. Effort-reward imbalance at work and tooth loss: a cross-sectional study from the J-SHINE project. Peer-reviewed

    Yukihiro Sato, Toru Tsuboya, Jun Aida, Yasuaki Saijo, Eiji Yoshioka, Ken Osaka

    Industrial health　58　(1)　26-34　2019/05/17

    DOI： 10.2486/indhealth.2018-0226 　

    ISSN： 0019-8366

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    Oral diseases produce enormous productivity loss. However, epidemiological evidence of work stress and tooth loss is scarce. The aim of this study was to examine the association of work stress, according to effort-reward imbalance (ERI), with tooth loss. We conducted a cross-sectional study using data obtained between 2010 and 2011 in Japan. This study included 1,195 employees aged 25-50 years old (response rate=32%). The dependent variable was self-reported tooth loss (having or not). The independent variable was a dichotomized ERI ratio (>1.4 and ≤1.4). Age, sex, sociodemographic variables, work-related factors, and health-related variables were adjusted. Psychological distress was used as a potential mediator. We also examined an additive interaction between support from supervisors and ERI. The median age was 37, and 48% were women. After adjusting for the covariates, ERI was still associated with tooth loss (prevalence ratio=1.20 [95% confidence interval=1.01, 1.42] from Poisson regression models with a robust error variance). Psychological distress partially explained the association, and support from supervisors significantly attenuated the association. In conclusion, high ERI ratio was still associated with an increased risk of tooth loss among working adults.

  156. Does Cigarette Smoking Increase Traffic Accident Death During 20 Years Follow-up in Japan? The Ibaraki Prefectural Health Study. Peer-reviewed

    Ayaka Igarashi, Jun Aida, Toshimi Sairenchi, Toru Tsuboya, Kemmyo Sugiyama, Shihoko Koyama, Yusuke Matsuyama, Yukihiro Sato, Ken Osaka, Hitoshi Ota

    Journal of epidemiology　29　(5)　192-196　2019/05/05

    DOI： 10.2188/jea.JE20170330 　

    ISSN： 0917-5040

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    BACKGROUND: Annually, more than 1.2 million deaths due to road traffic accidents occur worldwide. Although previous studies have examined the association between cigarette smoking and injury death, the mortality outcome often included non-traffic accident-related deaths. This study aimed to examine the association between cigarette smoking and traffic accident death. METHODS: We conducted a prospective cohort study using data from the Ibaraki Prefectural Health Study conducted from 1993 through 2013. The cohort included 97,078 adults (33,138 men and 63,940 women) living in Ibaraki Prefecture who were aged 40-79 years at an annual health checkup in 1993. We divided participants into four smoking status groups: non-smokers, ex-smokers, and current smokers who smoked <20 and ≥20 cigarettes per day. Hazard ratios (HRs) of traffic accident death were calculated using a Cox proportional hazards model. RESULTS: During 20 years of follow-up, the average person-years of follow-up were 16.8 and 18.2 in men and women, respectively. Among men, after adjusting for age and alcohol intake, HRs for traffic accident death among current smokers of <20 cigarettes/day and ≥20 cigarettes/day compared to non-smokers were 1.32 (95% confidence interval [CI], 0.79-2.20) and 1.54 (95% CI, 0.99-2.39), respectively. In contrast, among women, we found no association between smoking status and traffic accident deaths. CONCLUSION: In this prospective cohort study, we found a positive association, though marginally significant, between smoking and traffic accident death among men in Japan. Among women, because of the smaller number of deaths among smokers, adequate estimation could not be obtained.

  157. 業種と職場での受動喫煙状況の関連について

    五十嵐 彩夏, 相田 潤, 草間 太郎, 小坂 健

    口腔衛生学会雑誌　69　(増刊)　159-159　2019/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  158. フッ化物洗口に対するイメージは利用する情報源の種類によって影響を受けるのか? 媒介分析による検討 Peer-reviewed

    草間 太郎, 相田 潤, 五十嵐 彩夏, 川村 桜, 小坂 健

    口腔衛生学会雑誌　69　(増刊)　154-154　2019/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  159. 職種と歯磨き習慣の関連 Peer-reviewed

    野田 武聖, 相田 潤, 草間 太郎, 川村 桜, 星 真奈実, 小坂 健

    口腔衛生学会雑誌　69　(増刊)　155-155　2019/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  160. ソーシャル・ネットワーキング・サービス(SNS)の交流人数と歯や歯ぐきの健康状態の関連 Peer-reviewed

    山川 裕生, 相田 潤, 草間 太郎, 川村 桜, 星 真奈実, 小坂 健

    口腔衛生学会雑誌　69　(増刊)　160-160　2019/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  161. High prevalence of toothache among Great East Japan Earthquake survivors living in temporary housing. International-journal Peer-reviewed

    Masahiro Tsuchiya, Jun Aida, Takashi Watanabe, Masamichi Shinoda, Yumi Sugawara, Yasutake Tomata, Yutaka Yabe, Takuya Sekiguchi, Makoto Watanabe, Ken Osaka, Keiichi Sasaki, Yoshihiro Hagiwara, Ichiro Tsuji

    Community dentistry and oral epidemiology　47　(2)　119-126　2019/04

    DOI： 10.1111/cdoe.12433 　

    ISSN： 0301-5661

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    OBJECTIVES: The Great East Japan Earthquake and subsequent tsunami cause large-scale destruction in the north-eastern coastal areas in Japan, and forced many survivors to relocate to prefabricated temporary housing, a typical emergency accommodation. Based on the hypothesis that higher toothache prevalence among the disaster survivors is associated with postdisaster distress, we determined the impact of temporary residential environment as potential stressor on the subjective toothache prevalence. METHODS: A repeated cross-sectional health survey based on self-reported questionnaire was conducted in 2776 disaster survivors, of whom 1446 participants underwent dental examination by dentists. Housing type was categorized into three groups including the same housing as before the earthquake, temporary housing and rented/new housing. The association of housing type with subjective toothache prevalence was examined using multivariate logistic regression analysis in all subjects and subgroup analysis in dental examination applicants. Stratified analysis by survey wave was applied with inclusion of covariates such as the socio-demographic factors, and presence of insomnia and psychological distress. In subgroup analysis, presence of dental caries and gum problems in dental examination were included as factors of direct exposure to subjective toothache. RESULTS: In the first survey wave, the participants living in the temporary housing had significantly higher odds ratio (OR) for toothache prevalence compared to the participants living in the same housing (OR: 3.76, 95% confidence interval [CI]: 1.85-7.65, P < 0.001); whereas in all other survey waves, there was no significant difference. Subgroup analysis of dental examination applicants confirmed the presence of significant association of subjective toothache prevalence in the temporary housing group alone (OR: 3.27, 95% CI: 1.38-7.76, P = 0.004), but not in the rented/new housing group (OR: 1.50, 95% CI: 0.57-3.91, P = 0.411), even after adjusting for covariates related to oral findings. CONCLUSION: Temporary housing may be a factor to increase the risk of subjective toothache among disaster survivors only at postdisaster acute phase.

  162. Socioeconomic inequalities in low back pain among older people: the JAGES cross-sectional study. International-journal Peer-reviewed

    Takaaki Ikeda, Kemmyo Sugiyama, Jun Aida, Toru Tsuboya, Nanae Watabiki, Katsunori Kondo, Ken Osaka

    International journal for equity in health　18　(1)　15-15　2019/01/21

    DOI： 10.1186/s12939-019-0918-1 　

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    BACKGROUND: Low back pain is an important public health issue across the world. However, it is unclear whether socioeconomic status (SES) is associated with low back pain. This study determines an association between SES and low back pain among older people. METHODS: We used cross-sectional data derived from the year 2013 across 30 Japanese municipalities. The survey was conducted between October 2013 to December 2013. Functionally independent community-dwelling older adults aged 65 and above (n = 26,037) were eligible for the study. Multilevel Poisson regression analysis with a robust variance estimator was used to examine the association between SES and low back pain. Self-reported low back pain in the past year was used as a dependent variable. Educational attainment, past occupation, equivalized household income, wealth, and subjective economic situation represented SES and were separately analyzed as independent variables, adjusted for covariates including age and sex. RESULTS: The prevalence of low back pain was 63.4%. Overall, lower SES were more likely to suffer from low back pain compared with that for the highest. First, as for the educational attainment, the prevalence ratio (PR) (95% credible interval (CI)) for the lowest level was 1.07 (1.02-1.12). Second, as for the past occupation, the PR (95% CI) for the blue-collared workers compared with professionals was 1.06 (1.01-1.11). Third, as for the equalized household income, the PRs (95% CI) for lower middle and the lowest income levels were 1.08 (1.02-1.13) and 1.16 (1.10-1.23), respectively. Fourth, as for the wealth, the PRs (95% CI) for lower middle and the lowest wealth levels were 1.11 (1.04-1.19) and 1.18 (1.11-1.27), respectively. Fifth, as for the subjective economic situation, the PRs (95% CI) for lower middle and the lowest financial conditions were 1.18 (1.10-1.26) and 1.32 (1.22-1.44), respectively. CONCLUSIONS: Significant socioeconomic inequalities were observed in low back pain among older individuals in Japan. Policymakers and clinicians must understand the nature of these inequalities.

  163. Student loans and psychological distress: A cross-sectional study of young adults in Japan Peer-reviewed

    Yukihiro Sato, Richard G Watt, Yasuaki Saijo, Eiji Yoshioka, Ken Osaka

    Journal of Epidemiology　2019

  164. Sleep duration and remaining teeth among older people. International-journal Peer-reviewed

    Shihoko Koyama, Jun Aida, Noriko Cable, Toru Tsuboya, Yusuke Matsuyama, Yukihiro Sato, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka

    Sleep medicine　52　18-22　2018/12

    DOI： 10.1016/j.sleep.2018.07.020 　

    ISSN： 1389-9457

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    BACKGROUND: No studies have examined the associations between the numbers of teeth and sleep disturbance. Therefore, we examined the associations between the number of teeth and sleep duration in older people, considering the evidence linking fewer teeth and sleep apnoea through changes in jaw position. METHODS: For this study we used information from a sample of 23,444 cohort participants, randomly selected from the Japan Gerontological Evaluation Study 2010 (N = 169,215). The outcome variable was self-reported sleep duration (h/day), and the explanatory variable was self-reported number of teeth (0, 1-9, 10-19, ≥20). We treated age, sex, body mass index, educational attainment, annual equalized household income, depressive symptoms, physical activity, activities of daily living, presence of diabetes, and smoking status as covariates. Multinomial logistic regression was used among the 20,548 eligible participants with all necessary information. RESULTS: The mean age was 73.7 (standard deviation = 6.13) years. Most participants (28.1%) reported sleep duration of 7 h, while a small proportion of the participants reported short (≤4 h, 2.7%) or long (≥10 h, 4.7%) sleep duration. The proportion of edentulous participants was 14.7%. Taking the 7-h sleep duration as the reference category, edentulous participants (relative risk ratio (RRR) = 1.43, 95% confidence interval (CI) = 1.07-1.90) or one to nine teeth (RRR = 1.29, 95% CI = 1.02-1.63) had a significantly higher relative risk ratio for short sleep, independent of covariates. Furthermore, they had a higher relative risk ratio for long sleep duration (RRR = 1.75, 95% CI = 1.40-2.19; RRR = 1.48, 95% CI = 1.21-1.81, respectively). CONCLUSIONS: Compared to people with 20 or more teeth, older adults with fewer than 10 teeth have higher risks for short and long sleep durations.

  165. 福島第一原発事故被災サルの歯・骨へのSr-90の取り込み履歴と骨髄線量の推定

    小荒井 一真, 木野 康志, 西山 純平, 金子 拓, 小野 拓実, 岡 壽崇, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 漆原 佑介, 鈴木 正敏, 関根 勉, 篠田 壽, 福本 学

    日本放射線影響学会大会講演要旨集　61回　67-67　2018/11

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  166. ニホンザルの歯の電子スピン共鳴測定による外部被ばく線量推定

    岡 壽崇, 高橋 温, 小荒井 一真, 木野 康志, 関根 勉, 清水 良央, 千葉 美麗, 鈴木 敏彦, 小坂 健, 佐々木 啓一, 鈴木 正敏, 篠田 壽, 福本 学

    日本放射線影響学会大会講演要旨集　61回　100-100　2018/11

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  167. 大学時代の奨学金利用と歯の喪失の関連 インターネット調査を利用した横断研究

    佐藤 遊洋, 西條 泰明, 吉岡 英治, 小坂 健

    日本公衆衛生学会総会抄録集　77回　481-481　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  168. Generalized and particularized trust for health between urban and rural residents in Japan: A cohort study from the JAGES project. International-journal Peer-reviewed

    Yukihiro Sato, Jun Aida, Toru Tsuboya, Kokoro Shirai, Shihoko Koyama, Yusuke Matsuyama, Katsunori Kondo, Ken Osaka

    Social science & medicine (1982)　202　43-53　2018/04

    DOI： 10.1016/j.socscimed.2018.02.015 　

    ISSN： 0277-9536

  169. Social Inequalities in Secondhand Smoke Among Japanese Non-smokers: A Cross-Sectional Study. Peer-reviewed

    Yusuke Matsuyama, Jun Aida, Toru Tsuboya, Shihoko Koyama, Yukihiro Sato, Atsushi Hozawa, Ken Osaka

    Journal of epidemiology　28　(3)　133-139　2018/03/05

    DOI： 10.2188/jea.JE20160184 　

    ISSN： 0917-5040

  170. 90Sr specific activity of teeth of abandoned cattle after the Fukushima accident – teeth as an indicator of environmental pollution Peer-reviewed

    Kazuma Koarai, Yasushi Kino, Atsushi Takahashi, Toshihiko Suzuki, Yoshinaka Shimizu, Mirei Chiba, Ken Osaka, Keiichi Sasaki, Yusuke Urushihara, Tomokazu Fukuda, Emiko Isogai, Hideaki Yamashiro, Toshitaka Oka, Tsutomu Sekine, Manabu Fukumoto, Hisashi Shinoda

    Journal of Environmental Radioactivity　183　1-6　2018/03

    DOI： 10.1016/j.jenvrad.2017.12.005 　

    ISSN： 0265-931X

    eISSN： 1879-1700

  171. Temporary employment and tooth loss: A cross-sectional study from the J-SHINE study Peer-reviewed

    Yukihiro Sato, Toru Tsuboya, Richard G. Watt, Jun Aida, Ken Osaka

    BMC Oral Health　18　(1)　26　2018/02/21

    DOI： 10.1186/s12903-018-0488-4 　

    ISSN： 1472-6831

    eISSN： 1472-6831

  172. Transfer mechanisms of Sr-90 and Cs-137 Peer-reviewed

    37　9-11　2018/02

  173. Copayment Exemption Policy and Healthcare Utilization after the Great East Japan Earthquake. Peer-reviewed

    Yusuke Matsuyama, Toru Tsuboya, Shun-Ichiro Bessho, Jun Aida, Ken Osaka

    The Tohoku journal of experimental medicine　244　(2)　163-173　2018/02

    DOI： 10.1620/tjem.244.163 　

    ISSN： 0040-8727

  174. ウシの歯の放射能測定による福島第一原発事故後 の環境汚染評価 Peer-reviewed

    小荒井一真, 木野康志, 西山純平, 岡 壽崇, 高橋 温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂 健, 佐々木啓 一, 福田智一, 磯貝恵美子, 関根 勉, 福本 学, 篠田 壽

    Proceedings of the 19th Workshop on Environmental Radioactivity,　7　225-230　2018

  175. 福島第一原発事故被災ウシの歯・骨中の放射性・安定セシウムの測定 Peer-reviewed

    小野拓実, 小荒井一真, 木野康志, 西山純平, 金子拓, 岡壽崇, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 漆原 佑介, 福田智一, 磯貝恵美子, 関根勉, 福本学, 篠田壽

    KEK Proceedings of the 19th Workshop on Environmental Radioactivity　2018　219-224　2018/01

  176. 福島第一原子力事故被災サル硬組織中の放射能濃度 Peer-reviewed

    金子拓, 小荒井一真, 木野康志, 西山純平, 岡壽崇, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 漆原佑介, 鈴木正敏, 関根勉, 篠田壽, 福本学

    KEK Proceedings of the 19th Workshop on Environmental Radioactivity　2018　231-236　2018/01

  177. 福島原発事故後の土壌中での Sr-90、Cs-137 の挙動とウシの歯への移行機構 Peer-reviewed

    小荒井一真, 木野康志, 西山純平, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 関根勉, 福本学, 篠田壽

    KEK Proceedings of the 19th Workshop on Environmental Radioactivity　2018　225-230　2018/01

  178. The association between socioeconomic status and reactions to radiation exposure: a cross-sectional study after the Fukushima Daiichi nuclear power station accident. International-journal Peer-reviewed

    Taro Kusama, Jun Aida, Toru Tsuboya, Kemmyo Sugiyama, Takafumi Yamamoto, Ayaka Igarashi, Ken Osaka

    PloS one　13　(10)　e0205531　2018

    DOI： 10.1371/journal.pone.0205531 　

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    Risk perception and individual reactions to risk are not necessarily comparable, and socioeconomic status may affect individual reactions to risk. This study aimed to investigate the association between socioeconomic status and reactions to radiation exposure risk. This cross-sectional study, based on a self-reported online survey was conducted between 3 March and 21 March 2012, one year after the accident at Fukushima Daiichi nuclear power station. We used feelings of anxiety and risk-averse behavior concerning radiation exposure as dependent variables, and equivalent income and educational attainment as independent variables. Multiple logistic regression analysis was applied to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95% CIs) with adjustment for possible confounders. Among 10 000 participants, 23.0% felt anxious and 12.0% engaged in risk-averse behavior for radiation exposure. Participants with a higher socioeconomic status tended not to feel anxious but undertook risk-averse behavior. Participants in the highest quartile income category did not report feeling anxious but showed prevalent undertaking of risk-averse behavior for radiation exposure compared to the lowest income category (for anxiety, aOR, 0.77; 95% CI, 0.64-0.93, for risk-averse behavior, aOR, 1.33; 95% CI, 1.04-1.69). University or graduate-school graduates were associated with greater risk-averse behavior compared to junior high school or high school graduates (aOR, 1.49; 95% CI, 1.29-1.73). Socioeconomic status may affect reactions to radiation exposure risk. Risk communication strategies should consider the socioeconomic status of those affected.

  179. Social and Behavioural Determinants of the Difference in Survival among Older Adults in Japan and England. International-journal Peer-reviewed

    Jun Aida, Noriko Cable, Paola Zaninotto, Toru Tsuboya, Georgios Tsakos, Yusuke Matsuyama, Kanade Ito, Ken Osaka, Katsunori Kondo, Michael G Marmot, Richard G Watt

    Gerontology　64　(3)　266-277　2018

    DOI： 10.1159/000485797 　

    ISSN： 0304-324X

  180. Risk of mortality during and after the 2011 Great East Japan Earthquake and Tsunami among older coastal residents Peer-reviewed

    Jun Aida, Hiroyuki Hikichi, Yusuke Matsuyama, Yukihiro Sato, Toru Tsuboya, Takahiro Tabuchi, Shihoko Koyama, S. V. Subramanian, Katsunori Kondo, Ken Osaka, Ichiro Kawachi

    SCIENTIFIC REPORTS　7　2017/11

    DOI： 10.1038/s41598-017-16636-3 　

    ISSN： 2045-2322

  181. Trajectory of social inequalities in the treatment of dental caries among preschool children in Japan. International-journal Peer-reviewed

    Jun Aida, Yusuke Matsuyama, Takahiro Tabuchi, Yuko Komazaki, Toru Tsuboya, Tsuguhiko Kato, Ken Osaka, Takeo Fujiwara

    Community dentistry and oral epidemiology　45　(5)　407-412　2017/10

    DOI： 10.1111/cdoe.12304 　

    ISSN： 0301-5661

  182. Estimation of environmental pollution after the Fukushima Nuclear Power Plant accident Peer-reviewed

    KEK Proceedings of the 18th Workshop on Environmental Radioactivity　2017　(6)　202-207　2017/07

  183. Are Lowered Socioeconomic Circumstances Causally Related to Tooth Loss? A Natural Experiment Involving the 2011 Great East Japan Earthquake Peer-reviewed

    Yusuke Matsuyama, Jun Aida, Toru Tsuboya, Hiroyuki Hikichi, Katsunori Kondo, Ichiro Kawachi, Ken Osaka

    AMERICAN JOURNAL OF EPIDEMIOLOGY　186　(1)　54-62　2017/07

    DOI： 10.1093/aje/kwx059 　

    ISSN： 0002-9262

    eISSN： 1476-6256

  184. Dental Status and Compression of Life Expectancy with Disability. Peer-reviewed

    Matsuyama Y, Aida J, Watt RG, Tsuboya T, Koyama S, Sato Y, Kondo K, Osaka K

    Journal of dental research　96　(9)　22034517713166-1013　2017/06

    DOI： 10.1177/0022034517713166 　

    ISSN： 0022-0345

    eISSN： 1544-0591

  185. Predictors of decline in IADL functioning among older survivors following the Great East Japan earthquake: A prospective study Peer-reviewed

    Toru Tsuboya, Jun Aida, Hiroyuki Hikichi, S. V. Subramanian, Katsunori Kondo, Ken Osaka, Ichiro Kawachi

    SOCIAL SCIENCE & MEDICINE　176　34-41　2017/03

    DOI： 10.1016/j.socscimed.2017.01.022 　

    ISSN： 0277-9536

  186. Experience of childhood abuse and later number of remaining teeth in older Japanese: a life-course study from Japan Gerontological Evaluation Study project Peer-reviewed

    Yusuke Matsuyama, Takeo Fujiwara, Jun Aida, Richard G. Watt, Naoki Kondo, Tatsuo Yamamoto, Katsunori Kondo, Ken Osaka

    COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY　44　(6)　531-539　2016/12

    DOI： 10.1111/cdoe.12246 　

    ISSN： 0301-5661

    eISSN： 1600-0528

  187. School-Based Fluoride Mouth-Rinse Program Dissemination Associated With Decreasing Dental Caries Inequalities Between Japanese Prefectures: An Ecological Study Peer-reviewed

    Yusuke Matsuyama, Jun Aida, Katsuhiko Taura, Kazunari Kimoto, Yuichi Ando, Hitoshi Aoyama, Manabu Morita, Kanade Ito, Shihoko Koyama, Akihiro Hase, Toru Tsuboya, Ken Osaka

    JOURNAL OF EPIDEMIOLOGY　26　(11)　563-571　2016/11

    DOI： 10.2188/jea.JE20150255 　

    ISSN： 0917-5040

    eISSN： 1349-9092

  188. Tooth Loss and Decline in Functional Capacity: A Prospective Cohort Study from the Japan Gerontological Evaluation Study Peer-reviewed

    Yukihiro Sato, Jun Aida, Katsunori Kondo, Toru Tsuboya, Richard G. Watt, Tatsuo Yamamoto, Shihoko Koyama, Yusuke Matsuyama, Ken Osaka

    JOURNAL OF THE AMERICAN GERIATRICS SOCIETY　64　(11)　2336-2342　2016/11

    DOI： 10.1111/jgs.14324 　

    ISSN： 0002-8614

    eISSN： 1532-5415

  189. 福島第一原発事故被災ウシの歯と骨に含まれるSr-90測定 Peer-reviewed

    西山純平, 小荒井 一真, 木野 康志, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    KEK Proceedings of the 17th Workshop on Environmental Radioactivity　2016　(8)　128-133　2016/10

  190. 福島第一原発事故による被災ウシの歯のSr-90及びCs-137比放射能と体内Cs-137分布の比較 Peer-reviewed

    小荒井 一真, 木野 康志, 西山純平, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    KEK Proceedings of the 17th Workshop on Environmental Radioactivity　2016　(8)　122-127　2016/10

  191. Predictors of depressive symptoms following the Great East Japan earthquake: A prospective study Peer-reviewed

    Toru Tsuboya, Jun Aida, Hiroyuki Hikichi, S. V. Subramanian, Katsunori Kondo, Ken Osaka, Ichiro Kawachi

    SOCIAL SCIENCE & MEDICINE　161　47-54　2016/07

    DOI： 10.1016/j.socscimed.2016.05.026 　

    ISSN： 0277-9536

  192. Is Social Network Diversity Associated with Tooth Loss among Older Japanese Adults? Peer-reviewed

    Jun Aida, Katsunori Kondo, Tatsuo Yamamoto, Masashige Saito, Kanade Ito, Kayo Suzuki, Ken Osaka, Ichiro Kawachi

    PLOS ONE　11　(7)　2016/07

    DOI： 10.1371/journal.pone.0159970 　

    ISSN： 1932-6203

  193. Does poor dental health predict becoming homebound among older Japanese? International-journal Peer-reviewed

    Shihoko Koyama, Jun Aida, Katsunori Kondo, Tatsuo Yamamoto, Masashige Saito, Rika Ohtsuka, Miyo Nakade, Ken Osaka

    BMC oral health　16　(1)　51-51　2016/04/30

    DOI： 10.1186/s12903-016-0209-9 　

    ISSN： 1472-6831

  194. Sr-90 in teeth of cattle abandoned in evacuation zone: Record of pollution from the Fukushima-Daiichi Nuclear Power Plant accident Peer-reviewed

    Kazuma Koarai, Yasushi Kino, Atsushi Takahashi, Toshihiko Suzuki, Yoshinaka Shimizu, Mirei Chiba, Ken Osaka, Keiichi Sasaki, Tomokazu Fukuda, Emiko Isogai, Hideaki Yamashiro, Toshitaka Oka, Tsutomu Sekine, Manabu Fukumoto, Hisashi Shinoda

    SCIENTIFIC REPORTS　6　2016/04

    DOI： 10.1038/srep24077 　

    ISSN： 2045-2322

  195. ウシの歯の Sr-90 と Cs-137 濃度を指標とした 環境中からウシへの取り込みの時間変化の解析 Invited Peer-reviewed

    小荒井一真, 木野康志, 西山純平, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 関根勉, 福本学, 篠田壽

    放射化学　33　37-40　2016/03/01

  196. Do community- and individual-level social relationships contribute to the mental health of disaster survivors?: A multilevel prospective study after the Great East Japan Earthquake Peer-reviewed

    Yusuke Matsuyama, Jun Aida, Akihiro Hase, Yukihiro Sato, Shihoko Koyama, Toru Tsuboya, Ken Osaka

    SOCIAL SCIENCE & MEDICINE　151　187-195　2016/02

    DOI： 10.1016/j.socscimed.2016.01.008 　

    ISSN： 0277-9536

  197. Serum albumin levels and economic status in Japanese older adults Peer-reviewed

    Ota A, Kondo N, Murayama N, Tanabe N, Shobugawa Y, Kondo K, Kondo K, Hikichi H, Miyaguni Y, Sasaki Y, Nagamine Y, Hanazato M, Kondo N, Ashida T, Takagi D, Tani Y, Ojima T, Okada E, Osaka K, Aida J, Tuboya T, Saito M, Hirai H, Shobugawa Y, Suzuki K, Ichida Y, Yamamoto T, Murata C, Saito T, Jeong S, Nakade M, Takeda T, Cable N, Todoroki H, Shirai K, Hayashi T, Tamakoshi A, Misawa J, Fujino Y

    PLoS ONE　11　(6)　2016

    DOI： 10.1371/journal.pone.0155022 　

  198. Community social capital and tooth loss in Japanese older people: a longitudinal cohort study Peer-reviewed

    Shihoko Koyama, Jun Aida, Masashige Saito, Naoki Kondo, Yukihiro Sato, Yusuke Matsuyama, Yukako Tani, Yuri Sasaki, Katsunori Kondo, Toshiyuki Ojima, Tatsuo Yamamoto, Toru Tsuboya, Ken Osaka

    BMJ OPEN　6　(4)　2016

    DOI： 10.1136/bmjopen-2015-010768 　

    ISSN： 2044-6055

  199. Periodontal Disease Is Associated with Insomnia among Victims of the Great East Japan Earthquake: A Panel Study Initiated Three Months after the Disaster Peer-reviewed

    Masahiro Tsuchiya, Jun Aida, Yoshihiro Hagiwara, Yumi Sugawara, Yasutake Tomata, Mari Sato, Takashi Watanabe, Hiroaki Tomita, Eiji Nemoto, Makoto Watanabe, Ken Osaka, Ichiro Tsuji

    TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE　237　(2)　83-90　2015/10

    DOI： 10.1620/tjem.237.83 　

    ISSN： 0040-8727

    eISSN： 1349-3329

  200. Individual- and community-level social gradients of edentulousness. International-journal Peer-reviewed

    Kanade Ito, Jun Aida, Tatsuo Yamamoto, Rika Ohtsuka, Miyo Nakade, Kayo Suzuki, Katsunori Kondo, Ken Osaka

    BMC oral health　15　34-34　2015/03/11

    DOI： 10.1186/s12903-015-0020-z 　

    ISSN： 1472-6831

  201. 福島第一原発事故の被災動物の歯質中 Sr-90 と Cs-137 の放射能測定 Peer-reviewed

    小荒井一真, 木野康志, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 関根勉, 福本学, 篠田壽

    KEK Proceedings of the 16th Workshop on Environmental Radioactivity　2015　(4)　285-292　2015/03

  202. Working Overtime and Risk Factors for Coronary Heart Disease: A Propensity Score Analysis Based in the J-SHINE (Japanese Study of Stratification, Health, Income, and Neighborhood) Study Peer-reviewed

    Toru Tsuboya, Jun Aida, Ken Osaka, Ichiro Kawachi

    AMERICAN JOURNAL OF INDUSTRIAL MEDICINE　58　(2)　229-237　2015/02

    DOI： 10.1002/ajim.22409 　

    ISSN： 0271-3586

    eISSN： 1097-0274

  203. Relationship among Subjective Satisfaction with Verbal Communication, Dental Status, and Health-Related Quality of Life in Japanese Community-Residing Elderly Individuals Peer-reviewed

    Shuichi Hara, Hiroko Miura, Kiyoko Yamasaki, Naoko Morisaki, Ken Osaka

    Advances in Applied Sociology　5　(1)　32-39　2015/01

    DOI： 10.4236/aasoci.2015.51004 　

    ISSN： 2165-4328

  204. Impact of Loss of Removable Dentures on Oral Health after the Great East Japan Earthquake: A Retrospective Cohort Study Peer-reviewed

    Yukihiro Sato, Jun Aida, Kenji Takeuchi, Kanade Ito, Shihoko Koyama, Masako Kakizaki, Mari Sato, Ken Osaka, Ichiro Tsuji

    JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY　24　(1)　32-36　2015/01

    DOI： 10.1111/jopr.12210 　

    ISSN： 1059-941X

    eISSN： 1532-849X

  205. Social Support Improves Mental Health among the Victims Relocated to Temporary Housing following the Great East Japan Earthquake and Tsunami Peer-reviewed

    Shihoko Koyama, Jun Aida, Ichiro Kawachi, Naoki Kondo, S. V. Subramanian, Kanade Ito, Gen Kobashi, Kanako Masuno, Katsunori Kondo, Ken Osaka

    TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE　234　(3)　241-247　2014/11

    DOI： 10.1620/tjem.234.241 　

    ISSN： 0040-8727

    eISSN： 1349-3329

  206. Thermal Taste and Anti-Aspiration Drugs: A Novel Drug Discovery Against Pneumonia Peer-reviewed

    Satoru Ebihara, Takae Ebihara, Peijun Gui, Ken Osaka, Yasunori Sumi, Masahiro Kohzuki

    CURRENT PHARMACEUTICAL DESIGN　20　(16)　2755-2759　2014/05

    DOI： 10.2174/13816128113199990567 　

    ISSN： 1381-6128

    eISSN： 1873-4286

  207. Inequalities of dental prosthesis use under universal healthcare insurance Peer-reviewed

    Yusuke Matsuyama, Jun Aida, Kenji Takeuchi, Georgios Tsakos, Richard G. Watt, Katsunori Kondo, Ken Osaka

    COMMUNITY DENTISTRY AND ORAL EPIDEMIOLOGY　42　(2)　122-128　2014/04

    DOI： 10.1111/cdoe.12074 　

    ISSN： 0301-5661

    eISSN： 1600-0528

  208. 福島第一原発事故被災牛の歯に含まれる放射性ストロンチウムの測定 Peer-reviewed

    小荒井一真, 木野康志, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 二瓶英和, 岡壽崇, 関根勉, 福本学, 篠田壽

    KEK Proceedings of the 15th Workshop on Environmental Radioactivity　2014　(7)　268-275　2014

  209. Nutritional status and dysphagia risk among community-dwelling frail older adults Peer-reviewed

    Takeuchi K, Aida J, Ito K, Furuta M, Yamashita Y, Osaka K

    Journal of Nutrition, Health and Aging　18　(4)　352-357　2014

    DOI： 10.1007/s12603-014-0025-3 　

    ISSN： 1279-7707

    eISSN： 1760-4788

  210. Early life-course socioeconomic position, adult work-related factors and oral health disparities: cross-sectional analysis of the J-SHINE study Peer-reviewed

    Toru Tsuboya, Jun Aida, Ichiro Kawachi, Kazuo Katase, Ken Osaka

    BMJ OPEN　4　(10)　2014

    DOI： 10.1136/bmjopen-2014-005701 　

    ISSN： 2044-6055

  211. WORK CONDITIONS AND ORAL HEALTH: J-SHINE (JAPANESE STUDY OF STRATIFICATION, HEALTH, INCOME, AND NEIGHBORHOOD) STUDY Peer-reviewed

    Toru Tsuboya, Jun Aida, Ken Osaka

    AMERICAN JOURNAL OF EPIDEMIOLOGY　177　S31-S31　2013/06

    ISSN： 0002-9262

  212. WORK CONDITIONS AND HEALTH BEHAVIORS: J-SHINE (JAPANESE STUDY OF STRATIFICATION, HEALTH, INCOME, AND NEIGHBORHOOD) STUDY Peer-reviewed

    Toru Tsuboya, Jun Aida, Ken Osaka

    AMERICAN JOURNAL OF EPIDEMIOLOGY　177　S31-S31　2013/06

    ISSN： 0002-9262

  213. POLICY IMPACT ON EMPLOYMENT OF DENTAL HYGIENISTS IN NURSING HOMES IN JAPAN. Peer-reviewed

    Kanade Ito, Toru Tsuboya, Jun Aida, Ken Osaka

    AMERICAN JOURNAL OF EPIDEMIOLOGY　177　S163-S163　2013/06

    ISSN： 0002-9262

  214. Nitrogen availability in the taiga forest ecosystem of northeastern Siberia Peer-reviewed

    Alexandra S. Popova, Naoko Tokuchi, Nobuhito Ohte, Miki U. Ueda, Ken'ichi Osaka, Trofim Ch. Maximov, Atsuko Sugimoto

    Soil Science and Plant Nutrition　59　(3)　427-441　2013/06

    DOI： 10.1080/00380768.2013.772495 　

    ISSN： 0038-0768 1747-0765

    eISSN： 1747-0765

  215. Social Participation and Dental Health Status among Older Japanese Adults: A Population-Based Cross-Sectional Study Peer-reviewed

    Kenji Takeuchi, Jun Aida, Katsunori Kondo, Ken Osaka

    PLOS ONE　8　(4)　2013/04

    DOI： 10.1371/journal.pone.0061741 　

    ISSN： 1932-6203

  216. Does social capital affect the incidence of functional disability in older Japanese? A prospective population-based cohort study Peer-reviewed

    Jun Aida, Katsunori Kondo, Ichiro Kawachi, S. V. Subramanian, Yukinobu Ichida, Hiroshi Hirai, Naoki Kondo, Ken Osaka, Aubrey Sheiham, Georgios Tsakos, Richard G. Watt

    JOURNAL OF EPIDEMIOLOGY AND COMMUNITY HEALTH　67　(1)　42-47　2013/01

    DOI： 10.1136/jech-2011-200307 　

    ISSN： 0143-005X

  217. 在宅高齢者の栄養状態と誤嚥リスクの把握

    竹内 研時, 相田 潤, 伊藤 奏, 小山 史穂子, 吉中 晋, 小坂 健

    日本摂食・嚥下リハビリテーション学会雑誌　16　(3)　S206-S206　2012/12

    Publisher: (一社)日本摂食嚥下リハビリテーション学会

    ISSN： 1343-8441

    eISSN： 2434-2254

  218. 介護老人福祉施設における口腔機能維持管理加算と経口維持・移行加算の算定の現状

    伊藤 奏, 相田 潤, 竹内 研時, 小山 史穂子, 小坂 健

    日本摂食・嚥下リハビリテーション学会雑誌　16　(3)　S396-S396　2012/12

    Publisher: (一社)日本摂食嚥下リハビリテーション学会

    ISSN： 1343-8441

    eISSN： 2434-2254

  219. Community-level socioeconomic status and parental smoking in Japan Peer-reviewed

    Kenji Takeuchi, Jun Aida, Manabu Morita, Yuichi Ando, Ken Osaka

    SOCIAL SCIENCE & MEDICINE　75　(4)　747-751　2012/08

    DOI： 10.1016/j.socscimed.2012.04.001 　

    ISSN： 0277-9536

  220. Association Between Dental Status and Incident Disability in an Older Japanese Population Peer-reviewed

    Jun Aida, Katsunori Kondo, Hiroshi Hirai, Miyo Nakade, Tatsuo Yamamoto, Tomoya Hanibuchi, Ken Osaka, Aubrey Sheiham, Georgios Tsakos, Richard G. Watt

    JOURNAL OF THE AMERICAN GERIATRICS SOCIETY　60　(2)　338-343　2012/02

    DOI： 10.1111/j.1532-5415.2011.03791.x 　

    ISSN： 0002-8614

  221. Oral health and cancer, cardiovascular, and respiratory mortality of Japanese Peer-reviewed

    J. Aida, K. Kondo, T. Yamamoto, H. Hirai, M. Nakade, K. Osaka, A. Sheiham, G. Tsakos, R. G. Watt

    Journal of Dental Research　90　(9)　1129-1135　2011/09

    DOI： 10.1177/0022034511414423 　

    ISSN： 0022-0345 1544-0591

    eISSN： 1544-0591

  222. Association between caregiver behaviours to prevent vertical transmission and dental caries in their 3-year-old children Peer-reviewed

    S. Wakaguri, J. Aida, K. Osaka, M. Morita, Y. Ando

    Caries Research　45　(3)　281-286　2011/07

    DOI： 10.1159/000327211 　

    ISSN： 0008-6568

  223. Assessing the association between all-cause mortality and multiple aspects of individual social capital among the older Japanese Peer-reviewed

    Jun Aida, Katsunori Kondo, Hiroshi Hirai, S. V. Subramanian, Chiyoe Murata, Naoki Kondo, Yukinobu Ichida, Kokoro Shirai, Ken Osaka

    BMC PUBLIC HEALTH　11　2011/06

    DOI： 10.1186/1471-2458-11-499 　

    ISSN： 1471-2458

  224. Quantitative Risk Assessment of Vibrio parahaemolyticus in Finfish: A Model of Raw Horse Mackerel Consumption in Japan Peer-reviewed

    Jun&apos;ichiro Iwahori, Akio Yamamoto, Hodaka Suzuki, Takehisa Yamamoto, Toshiyuki Tsutsui, Keiko Motoyama, Mikiko Sawada, Tomoki Matsushita, Atsushi Hasegawa, Ken Osaka, Hajime Toyofuku, Fumiko Kasuga

    RISK ANALYSIS　30　(12)　1817-1832　2010/12

    DOI： 10.1111/j.1539-6924.2010.01444.x 　

    ISSN： 0272-4332

  225. Impact of oral health status on healthy life expectancy in community-dwelling population: The AGES Project cohort study Peer-reviewed

    Jun Aida, Miyo Nakade, Tomoya Hanibuchi, Hiroshi Hirai, Ken Osaka, Katsunori Kondo

    INTERFACE ORAL HEALTH SCIENCE 2009　326-+　2010

    DOI： 10.1007/978-4-431-99644-6_95 　

  226. The different effects of vertical social capital and horizontal social capital on dental status: A multilevel analysis Peer-reviewed

    Jun Aida, Tomoya Hanibuchi, Miyo Nakade, Hiroshi Hirai, Ken Osaka, Katsunori Kondo

    SOCIAL SCIENCE & MEDICINE　69　(4)　512-518　2009/08

    DOI： 10.1016/j.socscimed.2009.06.003 　

    ISSN： 0277-9536

  227. Quantitative modeling for risk assessment of Vibrio parahaemolyticus in bloody clams in southern Thailand Peer-reviewed

    Akio Yamamoto, Jun&apos;ichiro Iwahori, Varaporn Vuddhakul, Wilawan Charernjiratragul, David Vose, Ken Osaka, Mika Shigematsu, Hajime Toyofuku, Shigeki Yamamoto, Mitsuaki Nishibuchi, Fumiko Kasuga

    INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY　124　(1)　70-78　2008/05

    DOI： 10.1016/j.ijfoodmicro.2008.02.021 　

    ISSN： 0168-1605

  228. Infection and its control in group homes for the elderly in Japan. (J Hosp Infect)

    Ebihara S, Aida J, Freeman S, Osaka K

    J Hosp Infect　68　(2)　185-186　2008

    DOI： 10.1016/j.jhin.2007.11.009 　

    ISSN： 0195-6701

  229. 津山町で実施した学習歯科健診の試み

    丹田 奈緒子, 岩倉 政城, 井川 恭子, 天野 一宇, 小川 裕平, 山田 雄大, 草野 歩, 鷲尾 純平, 鴫原 ヨシ子, 渋谷 芳郎, 小関 健由, 阿部 陽子, 小橋 純子, 渋谷 香奈, 小泉 香織, 成澤 喜美子, 芳賀 めぐみ, 小坂 健

    宮城県公衆衛生学会会誌　(39)　12-12　2007/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  230. Spatio-temporal modelling of the HIV epidemic in Japan based on the national HIV/AIDS surveillance Peer-reviewed

    Tomoki Nakaya, Katsumi Nakase, Ken Osaka

    Journal of Geographical Systems　7　(3-4)　313-336　2005/12

    DOI： 10.1007/s10109-005-0008-3 　

    ISSN： 1435-5930 1435-5949

  231. 1999年から2002年までの日本におけるヒトエキノコックス症サーベイランスの集計と評価 感染症発生動向調査から Peer-reviewed

    新井智, 鈴木里和, 多屋馨子, 大山卓昭, 小坂健, 谷口清州, 岡部信彦

    感染症学雑誌　79　(3)　181-190　2005/03

    Publisher: The Japanese Association for Infectious Diseases

    DOI： 10.11150/kansenshogakuzasshi1970.79.181 　

    ISSN： 0387-5911

    More details Close

    National surveillance on human ecinococcosis has been performed since April 1999 when it was stipulated as a Category IV Disease under the Infectious Diseases Prevention Law. During the last 4 years of surveillance, 3 cases with unilocular hydatidosis (age range 27-81 years; median age 55 years) and 51 cases with alveolar hydatidosis (age range 15-86 years; median age 64 years) have been reported. The numbers of reported cases with alveolar hydatidosis have been increased with age, and the largest number reported in the age group >71 years. Three cases with unilocular hy datidosis have been reported from health centers in Honshu, and were likely to be imported cases. Seventeen reported cases had clinical symptoms. None of the reported cases had information on infection route. Fifty out of 51 cases with alveolar hydatid disease have been reported from health centers in Hokkaido. When analyzing the cases by subdividing Hokkaido into six regional districts, large number of cases were reported from health centers in Ishikari-Shiribeshi-Iburi region (20 cases) and in Nemuro-Abashiri-Kushiro region (15 cases). As detailed addresses of the cases were masked, we compared the number of cases per 100, 000 residents in regions. Health center in Nemuro-Abashiri-Kushiro region (2.13/100, 000) had largest rate and second was Souya-Rumoi region (2.05/100, 000). The results from current surveillance data only suggest the generation situation of human echinococcosis in several years ago or more, so the generation situation between 1999 April and 2002 December in surveillance is unknown.

  232. 感染症発生動向調査に基づく検討(第2報) 全国罹患数推計値の推移

    川戸 美由紀, 橋本 修二, 村上 義孝, 谷口 清州, 小坂 健, 重松 美加, 永井 正規

    日本公衆衛生学会総会抄録集　63回　853-853　2004/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  233. Vibrio vulnificus septicaemia in Japan: an estimated number of infections and physicians' knowledge of the syndrome Peer-reviewed

    K Osaka, M Komatsuzaki, H Takahashi, S Sakano, N Okabe

    EPIDEMIOLOGY AND INFECTION　132　(5)　993-996　2004/10

    DOI： 10.1017/S0950268804002407 　

    ISSN： 0950-2688

  234. Evaluation of a method for issuing warnings pre-epidemics and epidemics in Japan by infectious diseases surveillance Peer-reviewed

    Y Murakami, S Hashimoto, K Taniguchi, K Osaka, H Fuchigami, M Nagai

    JOURNAL OF EPIDEMIOLOGY　14　(2)　33-40　2004/03

    DOI： 10.2188/jea.14.33 　

    ISSN： 0917-5040

  235. 1999年から2002年までの日本におけるエキノコックス症サーベイランスの評価 感染症発生動向調査から Peer-reviewed

    新井智, 鈴木里和, 多屋馨子, 大山卓昭, 小坂健, 谷口清州, 岡部信彦

    感染症学雑誌　77　(11)　957-964　2003/11

    Publisher: The Japanese Association for Infectious Diseases

    DOI： 10.11150/kansenshogakuzasshi1970.77.957 　

    ISSN： 0387-5911

    More details Close

    National echinococcosis surveillance has been performed since April 1999 when it was stipulated as a Category IV Disease under the Infectious Diseases Prevention Law. During the last 4 years of surveillance, 7 cases of unilocular hydatid disease (age range 27-81 years; median age 56 years) and 43 cases of alveolar hydatid disease (age range 24-83 years; median age 64 years) have been reported. There was an increase in the number of reported cases of alveolar hydatid with age, and the greatest number of reported cases occurred in the age group≥70 years. Thirty-three of the reported echinococcosis cases had clinical symptoms. The greatest number of echinococcosis was reported from health centers in Hokkaido; 94% of all reported cases (47/50) were from this island. After classifying Hokkaido into six regional districts and analyzing cases by district, we found the greatest number of reported cases to be from the Nemuro-Abashiri-Kushiro region (16 cases) and the Ishikari-Shiribeshi-Iburi region (15 cases). However, the greatest number of reported cases per 100, 000 residents was found to be from the Souya-Rumoi region (2.05/100, 000) and the Nemuro-Abashiri-Kushiro region (2.00/100, 000). As the incubation period of echinococcosis is thought to be several years or more, the current data shows the infection rate from several years ago. In order to better understand the current infection rate of echinococcosis, we recommend implementing a seroepidemiological surveillance in addition to the present surveillance.

  236. 感染症法施行後における感染症発生動向調査の定点配置状況 Peer-reviewed

    村上義孝, 橋本修二, 谷口清州, 小坂健, 渕上博司, 永井正規

    日本公衆衛生雑誌　50　(8)　732-738　2003/08

    Publisher: Japanese Society of Public Health

    DOI： 10.11236/jph.50.8_732 　

    ISSN： 0546-1766

  237. Annual incidence rate of infectious diseases estimated from sentinel surveillance data in Japan Peer-reviewed

    S Hashimoto, Y Murakami, K Taniguchi, N Shindo, K Osaka, H Fuchigami, M Nagai

    JOURNAL OF EPIDEMIOLOGY　13　(3)　136-141　2003/05

    DOI： 10.2188/jea.13.136 　

    ISSN： 0917-5040

  238. 魚貝類及び環境におけるVibrio vulnificusの定量的な解析に関する研究 Peer-reviewed

    小坂健, 田村和満, 春日文子, 斉藤紀行, 尾畑浩魅, 甲斐明美, 山井志朗, 浅井良夫, 杉山寛治, 西尾智祐, 福島博, 宮坂次郎, 荒川英二, 重松美加, 岡部信彦, 山本茂貴

    感染症学雑誌　77　(臨増)　271-271　2003/03

    Publisher:

    ISSN： 0387-5911

  239. 保育園・幼稚園における出血性大腸菌感染症に関する研究 Peer-reviewed

    重松美加, 小坂健, 岡部信彦

    感染症学雑誌　77　(臨増)　201-201　2003/03

    Publisher:

    ISSN： 0387-5911

  240. Spatial diffusion of the HIV/AIDS epidemic in Japan based on the national HIV/AIDS surveillance

    Nakaya, T, Nakase, K, Osaka, K, Okabe, N

    Proceedings of the GeoHealth Conference and SIRC Colloquium 2002, Wellington　15-21　2002/12

  241. Evaluation of national Tsutsugamushi disease surveillance - Japan, 2000 Peer-reviewed

    T Matsui, MH Kramer, JM Mendlein, K Osaka, T Ohyama, H Takahashi, T Ono, N Okabe

    JAPANESE JOURNAL OF INFECTIOUS DISEASES　55　(6)　197-203　2002/12

    ISSN： 1344-6304

    eISSN： 1884-2836

  242. Testing a symptom-based surveillance system at high-profile gatherings as a preparatory measure for bioterrorism Peer-reviewed

    K Osaka, H Takahashi, T Ohyama

    EPIDEMIOLOGY AND INFECTION　129　(3)　429-434　2002/12

    DOI： 10.1017/S0950268802007689 　

    ISSN： 0950-2688

  243. 性感染症を疑った若年女性の受診と関連する要因 Peer-reviewed

    中瀬克己, 小坂健, 岡部信彦, 中谷友樹

    日本エイズ学会誌　4　(4)　383-383　2002/11

  244. G8福岡・宮崎サミット2000に伴う症候群サーベイランスの評価 Peer-reviewed

    松井珠乃, 高橋央, 大山卓昭, 田中毅, 加來浩器, 小坂健, 千々和勝巳, 岩城詩子, 岡部信彦

    感染症学雑誌　76　(3)　161-166　2002/03

    Publisher:

    DOI： 10.11150/kansenshogakuzasshi1970.76.161 　

    ISSN： 0387-5911

    eISSN： 1884-569X

  245. サッカーワールドカップ2002に伴う輸入感染症の発生予測 Peer-reviewed

    高橋央, 加來浩器, 田中毅, 松井珠乃, 小坂健, 大山卓昭, 岡部信彦

    感染症学雑誌　76　(2)　102-108　2002/02

    Publisher: The Japanese Association for Infectious Diseases

    DOI： 10.11150/kansenshogakuzasshi1970.76.102 　

    ISSN： 0387-5911

    More details Close

    The FIFA World Cup 2002 Korea/Japan, which will be held during May 31 through June 30, 2002, is a mass-gathering and high-profile event. The Ministry of Transport announced that approximately 430, 000 people visit Japan for the event. We estimated the incidence of major imported infections using data from the national epidemiological surveillance of infectious diseases and the statistics of immigration. Estimated incidences are 5.88 (shigellosis), 3.41 (malaria), 1.40 (typhoid/paratyphoid fever), 0.42 (cholera), and 0.0032 (meningococcal meningitis). The incidence for viral hemorrhagic fever was estimated 0.0018 under assumption that "it correlates with the malaria incidence from Africa" and that "the incidence occurs every 15 years". These results indicate little possibility of remarkable increase of exotic infections during the event. These incidences, however, may occur in the rural prefectures where few cases are reported. It is highly needed to strengthen surveillance and educate physicians and public health experts especially for malaria cases.

  246. 性感染症定点医療機関受診者の代表性 Peer-reviewed

    中瀬克己, 小坂健, 橋戸円, 岡部信彦

    日本性感染症学会誌　12　(2)　54-54　2001/11

  247. HIV感染症の空間的拡散と感染チャンネル 異性間感染の推定感染地の地域差 Peer-reviewed

    中谷友樹, 中瀬克己, 小坂健, 岡部信彦

    日本エイズ学会誌　3　(4)　305-305　2001/11

  248. HIV感染の地理的拡大把握におけるサーベイランス情報の意義 Peer-reviewed

    中瀬克己, 中谷友樹, 小坂健, 岡部信彦

    日本エイズ学会誌　3　(4)　304-304　2001/11

  249. 2000/2001シーズンのインフルエンザ流行状況(速報) Peer-reviewed

    進藤奈邦子, 新井智, 小坂健, 木村幹男, 松永泰子, 岡部信彦

    感染症学雑誌　75　(8)　722-722　2001/08

  250. 感染症法に基づくマラリアサーベイランスの解析結果 Peer-reviewed

    加來浩器, 高橋央, 大山卓昭, 小坂健, 木村幹男, 岡部信彦

    日本熱帯医学会雑誌　29　(増刊)　203-203　2001/08

    Publisher:

    ISSN： 0304-2146

  251. 感染症発生動向調査に基づくインフルエンザの流行 1999年度の警報・注意報の発生状況 Peer-reviewed

    橋本修二, 村上義孝, 谷口清州, 小坂健, 進藤奈邦子, 渕上博司, 永井正規

    日本公衆衛生雑誌　48　(6)　480-485　2001/06

  252. 2000/2001シーズンのインフルエンザ流行状況(速報) Peer-reviewed

    進藤奈邦子, 新井智, 小坂健, 木村幹男, 松永泰子, 岡部信彦

    感染症学雑誌　75　(臨増)　145-145　2001/02

  253. 海外渡航者下痢症の電子メールネットワーク 98年4月〜99年3月の解析結果 Peer-reviewed

    小坂健, 井上榮, 岡部信彦, 相楽裕子, 小池麒一郎, 横田勉, 松本泰治, 石井俊也

    感染症学雑誌　74　(9)　779-780　2000/09

  254. 海外渡航者下痢症の電子メールネットワーク 98年4月〜99年3月の解析結果 Peer-reviewed

    小坂健, 井上榮, 岡部信彦, 相楽裕子, 小池麒一郎, 横田勉, 松本泰治, 石井俊也

    感染症学雑誌　74　(臨増)　90-90　2000/03

  255. Electronic network for monitoring travellers' diarrhoea and detection of an outbreak caused by Salmonella enteritidis among overseas travellers Peer-reviewed

    K Osaka, S Inouye, N Okabe, K Taniguchi, N Izumiya, H Watanabe, Y Matsumoto, T Yokota, S Hashimoto, H Sagara

    EPIDEMIOLOGY AND INFECTION　123　(3)　431-436　1999/12

    DOI： 10.1017/S0950268899003179 　

    ISSN： 0950-2688

  256. 過去10年間のインフルエンザ流行解析 Peer-reviewed

    進藤奈邦子, 小坂健, 谷口清州, 岡部信彦, 松永泰子, 井上栄

    感染症学雑誌　73　(9)　994-995　1999/09

  257. Control of dengue fever with active surveillance and the use of insecticidal aerosol cans Peer-reviewed

    Ken Osaka, Do Quang Ha, Yoichi Sakakihara, Ha Ba Khiem, Takusei Umenai

    Southeast Asian Journal of Tropical Medicine and Public Health　30　(3)　484-488　1999/09

    ISSN： 0125-1562

  258. 電子メールを使った旅行者下痢症の情報ネットワーク Peer-reviewed

    小坂健, 井上栄, 相楽裕子, 小池麒一郎, 進藤奈邦子, 谷口清州, 岡部信彦, 泉谷秀昌, 渡辺治雄, 橋本智, 他

    感染症学雑誌　73　(8)　845-846　1999/08

  259. ループスアンチコアグラント陽性を呈し糖尿病を合併した男性SLE例 長女にも血清学的自己免疫異常

    高橋毅法, 日野治子, 小坂健, 田口圓

    皮膚科の臨床　41　(9)　1479-1483　1999/08

  260. 1997/1998シーズンインフルエンザサーベイランス解析結果

    谷口清州, 進藤奈邦子, 小林聖名子, 小坂健, 岡部信彦

    感染症学雑誌　73　(4)　387-388　1999/04

  261. 電子メールを使った旅行者下痢症の情報ネットワーク Peer-reviewed

    小坂健, 井上栄, 相楽裕子, 小池麒一郎, 進藤奈邦子, 谷口清州, 岡部信彦, 泉谷秀昌, 渡辺治雄, 橋本智, 他

    感染症学雑誌　73　(臨増)　99-99　1999/02

  262. 過去10年間のインフルエンザ流行解析 Peer-reviewed

    進藤奈邦子, 小坂健, 谷口清州, 岡部信彦, 松永泰子, 井上栄

    感染症学雑誌　73　(臨増)　196-196　1999/02

  263. デング(出血)熱のコントロール Active Surveillanceと缶殺虫剤供給の検討 Peer-reviewed

    小坂健, HaDo Quang, 梅内拓生

    日本熱帯医学会雑誌　26　(増刊)　242-242　1998/10

  264. 開発途上国での在留邦人の感染症予防に関する研究 Peer-reviewed

    小坂健, 他

    日本熱帯医学会雑誌　25　(増刊)　68-68　1997/10

  265. 開発途上国における在留邦人の予防接種等に関する研究 Peer-reviewed

    小坂健, 他

    日本公衆衛生雑誌　43　(10特別附録II)　862-862　1996/10

    ISSN： 1347-8060

  266. ベトナムにおける地域レベルでのデング熱対策に関する研究 Peer-reviewed

    小坂健, 他

    日本公衆衛生雑誌　42　(10(特別附録))　1498-1498　1995/10

Show all ︎Show first 5

Misc. 358

  1. 体重増減の腰痛への影響:握力による効果の異質性の検討

    池田登顕, 池田登顕, クーレイ ウプル, 鈴木優太, 衣川安奈, 村上正泰, 小坂健

    日本予防理学療法学会学術大会プログラム・抄録集(Web)　9th　2022

    ISSN： 2758-7983

  2. A study on accuracy of analysis of the radiation-induced component in the ESR spectra of teeth

    光安優典, 岡壽崇, 高橋温, 木野康志, 奥津賢一, 関根勉, 山下琢磨, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 鈴木正敏, 福本学, 篠田壽

    KEK Proceedings (Web)　(2022-2)　2022

  3. Development of dose estimation method using wild animal teeth for low dose exposure

    光安優典, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 奥津賢一, 関根勉, 山下琢磨, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 漆原佑介, 鈴木正敏, 福本学, 篠田壽

    KEK Proceedings (Web)　(2021-2)　2021

  4. 地域在住高齢者の軽度認知障害による歯科受診の低下の分析

    山元絹美, 相田潤, 相田潤, 木内桜, 近藤克則, 近藤克則, 小坂健

    老年社会科学　43　(2)　2021

    ISSN： 0388-2446

  5. 歯科衛生士の離職防止と復職に関連する要因:ストレスモデルと歯科医師との意識の差

    相田潤, 相田潤, 草間太郎, 五十嵐彩夏, 小関健由, 小坂健, 人見早苗, 人見早苗, 渡部千代, 渡部千代

    口腔衛生学会雑誌　71　2021

    ISSN： 0023-2831

  6. 腰痛と地域の失業率の関連-962,586人の労働者のマルチレベル分析-

    池田登顕, 池田登顕, 杉山賢明, 相田潤, 坪谷透, 小坂健

    日本理学療法学術大会(Web)　54th　2020

  7. 口腔機能と認知機能の因果関係の研究 固定効果分析による検討

    木内 桜, 相田 潤, 杉山 賢明, 山本 貴文, 草間 太郎, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　78回　243-243　2019/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  8. 高齢者における社会的孤立が抑うつ発症に及ぼす影響についての日英比較研究

    野口泰司, 斉藤雅茂, 相田潤, 辻大士, 小山史穂子, 宮國康弘, 池田登顕, 小坂健, 近藤克則

    日本公衆衛生学会総会抄録集　66　(10)　238-238　2019/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  9. 宮城県内の東日本大震災被災者の健康状態 平成30年度宮城県被災者健康調査より

    東 大介, 小野寺 保, 草間 太郎, 杉山 賢明, 坪谷 透, 小坂 健, 相田 潤

    日本公衆衛生学会総会抄録集　78回　511-511　2019/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  10. 地域在住高齢者の膝痛と社会経済状況との関連について JAGES横断研究

    池田 登顕, 相田 潤, 杉山 賢明, 坪谷 透, 近藤 克則, 小坂 健

    理学療法学　46　(Suppl.1)　O-002　2019/08

    Publisher: (公社)日本理学療法士協会

    ISSN： 0289-3770

    eISSN： 2189-602X

  11. 東日本大震災後の歯痛罹患と住居形態に関する検討

    土谷 昌広, 相田 潤, 渡邉 崇, 篠田 雅路, 菅原 由美, 遠又 靖丈, 矢部 裕, 関口 拓矢, 渡邉 誠, 小坂 健, 佐々木 啓一, 萩原 嘉廣, 辻 一郎

    PAIN RESEARCH　34　(2)　152-152　2019/07

    Publisher: 日本疼痛学会

    ISSN： 0915-8588

  12. 東日本大震災後の歯痛罹患と住居形態に関する検討

    土谷 昌広, 相田 潤, 渡邉 崇, 篠田 雅路, 菅原 由美, 遠又 靖丈, 矢部 裕, 関口 拓矢, 渡邉 誠, 小坂 健, 佐々木 啓一, 萩原 嘉廣, 辻 一郎

    PAIN RESEARCH　34　(2)　152-152　2019/07

    Publisher: 日本疼痛学会

    ISSN： 0915-8588

  13. 日英の大規模縦断調査に基づく高齢者の社会的孤立の特性 JAGES・ELSAの比較より

    斉藤 雅茂, 相田 潤, 辻 大士, 小山 史穂子, 池田 登顕, 宮國 康弘, 野口 泰司, 小坂 健

    老年社会科学　41　(2)　201-201　2019/06

    Publisher: 日本老年社会科学会

    ISSN： 0388-2446

  14. 都市での孤立は高齢者の死亡リスクをより高めるか:JAGESコホート研究

    相田潤, 斉藤雅茂, 花里真道, 斎藤民, 菖蒲川由郷, 平井寛, 小坂健, 尾島俊之, 近藤克則

    日本疫学会学術総会講演集(Web)　29th　87 (WEB ONLY)　2019/01/30

  15. Sample preparation procedure for the estimation of external exposure dose of wild animals using electron spin resonance spectroscopy

    岡壽崇, 岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 光安優典, 小野拓実, 田巻廣明, 木野康志, 関根勉, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 藤嶋洋平, 漆原佑介, GOH Valerie See Ting, 有吉健太郎, 中田章史, 鈴木正敏, 山城秀昭, 福本学, 篠田壽, 三浦富智

    日本放射化学会討論会(Web)　63rd　2019

  16. Incorporation record of radionuclides in teeth and otoliths.

    小荒井一真, 松枝誠, 藤原健壮, 小野拓実, 木野康志, 岡壽崇, 奥津賢一, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 佐々木啓一, 石井弓美子, 林誠二, 関根勉, 福本学, 福本学, 篠田壽, 北村哲浩

    日本放射化学会討論会(Web)　63rd　2019

  17. 20190820

    池田 登顕, 相田 潤, 杉山 賢明, 坪谷 透, 近藤 克則, 小坂 健

    Congress of the Japanese Physical Therapy Association　46　(0)　G-91_1-G-91_1　2019

    Publisher: JAPANESE PHYSICAL THERAPY ASSOCIATION

    DOI： 10.14900/cjpt.46S1.G-91_1 　

    ISSN： 0289-3770

    eISSN： 2189-602X

  18. The association of social capital and social skills on mental health among medical science students

    ABE Tomomi, OSAKA Ken, AIDA Jun, ITO Kanade, KITADA Shiro, ESUMI Shingo, TSUBOYA Toru, MATSUYAMA Yusuke, SATO Yukihiro, IGARASHI Ayaka

    Japanese Journal of Health Education and Promotion　27　(2)　143-152　2019

    Publisher: JAPANESE SOCIETY OF HEALTH EDUCATION AND PROMOTION

    DOI： 10.11260/kenkokyoiku.27.143 　

    ISSN： 1340-2560

    eISSN： 1884-5053

  19. Social Inequalities in Dental Implant Use Among Older Japanese

    Abbas Hazem, Aida Jun, Saito Masashige, Kondo Katsunori, Tsakos Georgios, Watt G Richard, Osaka Ken

    International association for dental research　2018/11

  20. 東日本大震災による失業は喫煙本数増加に関連するのか

    小山史穂子, 小山史穂子, 相田潤, 相田潤, 田淵貴大, 坪谷透, 杉山賢明, 山本貴文, 五十嵐彩夏, 草間太郎, 川村桜, 星真奈実, 小坂健, 小坂健

    日本公衆衛生学会総会抄録集　77th　364-364　2018/10/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  21. フッ化物洗口へのイメージは学歴によってどのように異なるのか?

    草間太郎, 相田潤, 坪谷透, 杉山賢明, 小山史穂子, 小山史穂子, 山本貴文, 五十嵐彩夏, 川村桜, 星真奈実, 小坂健

    日本公衆衛生学会総会抄録集　77th　478-478　2018/10/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  22. 宮城県内の災害公営住宅入居者の健康状態:平成29年度調査より

    東大介, 佐藤弥生子, 草間太郎, 杉山賢明, 坪谷透, 相田潤, 小坂健

    日本公衆衛生学会総会抄録集　77th　502-502　2018/10/09

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  23. 緑茶と現在歯数との関連はソーシャルネットワークによって異なるのか

    星 真奈実, 相田 潤, 小山 史穂子, 山本 貴文, 池田 登顕, 草間 太郎, 川村 桜, 小坂 健, 山本 龍生, 尾島 俊之, 近藤 克則

    日本公衆衛生学会総会抄録集　77回　240-240　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  24. 歯科医院受診の地域差の決定要因の研究

    川村 桜, 相田 潤, 草間 太郎, 小山 史穂子, 山本 貴文, 池田 登顕, 星 真奈実, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　77回　240-240　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  25. 緑茶と現在歯数との関連はソーシャルネットワークによって異なるのか

    星 真奈実, 相田 潤, 小山 史穂子, 山本 貴文, 池田 登顕, 草間 太郎, 川村 桜, 小坂 健, 山本 龍生, 尾島 俊之, 近藤 克則

    日本公衆衛生学会総会抄録集　77回　240-240　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  26. 歯科医院受診の地域差の決定要因の研究

    川村 桜, 相田 潤, 草間 太郎, 小山 史穂子, 山本 貴文, 池田 登顕, 星 真奈実, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　77回　240-240　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  27. 東日本大震災による失業は喫煙本数増加に関連するのか

    小山 史穂子, 相田 潤, 田淵 貴大, 坪谷 透, 杉山 賢明, 山本 貴文, 五十嵐 彩夏, 草間 太郎, 川村 桜, 星 真奈実, 小坂 健

    日本公衆衛生学会総会抄録集　77回　364-364　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  28. フッ化物洗口へのイメージは学歴によってどのように異なるのか?

    草間 太郎, 相田 潤, 坪谷 透, 杉山 賢明, 小山 史穂子, 山本 貴文, 五十嵐 彩夏, 川村 桜, 星 真奈実, 小坂 健

    日本公衆衛生学会総会抄録集　77回　478-478　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  29. 宮城県内の災害公営住宅入居者の健康状態 平成29年度調査より

    東 大介, 佐藤 弥生子, 草間 太郎, 杉山 賢明, 坪谷 透, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　77回　502-502　2018/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  30. ウシの歯を用いた福島第一原発事故後のSr‐90汚染経過の推定

    小荒井一真, 木野康志, 西山純平, 金子拓, 小野拓実, 岡壽崇, 岡壽崇, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 漆原佑介, 福田智一, 磯貝恵美子, 関根勉, 関根勉, 福本学, 篠田壽

    日本分析化学会年会講演要旨集　67th　133-133　2018/08/29

    Publisher: (公社)日本分析化学会

  31. 歯のESR測定によるヒトおよび動物の外部被ばく線量評価

    岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 関根勉, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 漆原佑介, 鈴木正敏, 福本学, 篠田壽

    日本分析化学会年会講演要旨集　67th　133-133　2018/08/29

    Publisher: (公社)日本分析化学会

  32. 医療費自己負担免除は被災者の医療アクセスを担保したか

    坪谷透, 松山祐輔, 松山祐輔, 相田潤, 小坂健

    東北公衆衛生学会講演集　67th　(67)　28-28　2018/07

    Publisher: 東北公衆衛生学会

    ISSN： 0915-549X

  33. ウシの歯中の放射能濃度からの環境中Sr‐90とCs‐137の挙動の推定

    小荒井一真, 木野康志, 西山純平, 岡壽崇, 岡壽崇, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 漆原佑介, 福田智一, 磯貝恵美子, 関根勉, 関根勉, 福本学, 篠田壽

    アイソトープ・放射線研究発表会要旨集　55th　12　2018/06/20

  34. かみ合わせ数と睡眠時間との関連の横断研究

    小山 史穂子, 相田 潤, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　116-116　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  35. 友人の数が現在歯数にあたえる影響

    伏見 国拡, 相田 潤, 佐藤 遊洋, 池田 登顕, 杉山 賢明, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　145-145　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  36. う蝕予防情報の入手元とフッ化物洗口に対する認識の関連について

    伊勢 円, 相田 潤, 杉山 賢明, 草間 太郎, 池田 登顕, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　188-188　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  37. 主観的な噛み合わせと認知機能の関連性

    有馬 実咲, 相田 潤, 草間 太郎, 杉山 賢明, 坪谷 透, 小山 史穂子, 山本 龍生, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　188-188　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  38. 加熱式タバコ使用と禁煙への関心および禁煙行動の関連について

    坪井 裕紀, 相田 潤, 五十嵐 彩夏, 草間 太郎, 杉山 賢明, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　189-189　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  39. かみ合わせ数と睡眠時間との関連の横断研究

    小山 史穂子, 相田 潤, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　116-116　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  40. 砂糖の摂取と歯周病の関連について システマティックレビュー

    草間 太郎, 相田 潤, 五十嵐 彩夏, 山本 貴文, 池田 登顕, 佐藤 遊洋, 山元 絹美, 三浦 宏子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　143-143　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  41. 友人の数が現在歯数にあたえる影響

    伏見 国拡, 相田 潤, 佐藤 遊洋, 池田 登顕, 杉山 賢明, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　145-145　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  42. 職業性ストレスと歯牙喪失の関連 J-SHINEからの横断研究

    佐藤 遊洋, 坪谷 透, 相田 潤, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　158-158　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  43. 加熱式タバコ使用と社会経済状況の関連について

    五十嵐 彩夏, 相田 潤, 草間 太郎, 坪谷 透, 杉山 賢明, 山本 貴文, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　160-160　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  44. う蝕予防情報の入手元とフッ化物洗口に対する認識の関連について

    伊勢 円, 相田 潤, 杉山 賢明, 草間 太郎, 池田 登顕, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　188-188　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  45. 主観的な噛み合わせと認知機能の関連性

    有馬 実咲, 相田 潤, 草間 太郎, 杉山 賢明, 坪谷 透, 小山 史穂子, 山本 龍生, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　188-188　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  46. 加熱式タバコ使用と禁煙への関心および禁煙行動の関連について

    坪井 裕紀, 相田 潤, 五十嵐 彩夏, 草間 太郎, 杉山 賢明, 坪谷 透, 小山 史穂子, 小坂 健

    口腔衛生学会雑誌　68　(増刊)　189-189　2018/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  47. 岩沼プロジェクトで明らかになった被災高齢者の中長期的な社会生活と健康 : 地域の保健師に求められるもの (特集 中長期的視点から災害時保健活動を再考する : 東日本大震災の健康への影響と保健活動の展開)

    小坂 健, 坪谷 透

    保健師ジャーナル　74　(3)　183-188　2018/03

    Publisher: 医学書院

    ISSN： 1348-8333

  48. 【中長期的視点から災害時保健活動を再考する-東日本大震災の健康への影響と保健活動の展開】 岩沼プロジェクトで明らかになった被災高齢者の中長期的な社会生活と健康 地域の保健師に求められるもの

    小坂 健, 坪谷 透

    保健師ジャーナル　74　(3)　183-188　2018/03

    Publisher: (株)医学書院

    DOI： 10.11477/mf.1664200885 　

    ISSN： 1348-8333

  49. 震災約3年後の高齢者の自立に影響する3つの出来事 東日本大震災前後の被災者のデータ分析より

    坪谷 透, 相田 潤, 小坂 健, 引地 博之, Subramanian S.V, Kawachi Ichiro, 近藤 克則

    宮城県公衆衛生学会会誌　(50)　21-21　2018/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  50. 歯のESR測定による被ばく線量推定の取り組み

    岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 関根勉, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 篠田壽

    ESR応用計測　34　14　2018/02/09

    ISSN： 0918-6824

  51. Effect of inter-professional collaboration in oral health care management system on residents of nursing home

    木戸田 直実, 相田 潤, 小坂 健

    日本歯科衛生学会雑誌　12　(2)　46-52　2018/02

    Publisher: 日本歯科衛生学会

    ISSN： 1884-5193

  52. 介護老人福祉施設における口腔ケアの多職種連携体制の実施と施設職員および入所者の変化について

    木戸田 直実, 相田 潤, 小坂 健

    日本歯科衛生学会雑誌　12　(2)　46-52　2018/02

    Publisher: 日本歯科衛生学会

    ISSN： 1884-5193

  53. Reconsidering Age-based Definition of "Elderly" in the Era of Inclusive Society

    Osaka Ken

    Ronen Shika Igaku　33　(3)　281-286　2018

    Publisher: Japanese Society of Gerodontology

    ISSN： 0914-3866

  54. Is Directorsʼ or Office Managersʼ Interest in Oral Health Management Associatedwith Additional Fees for Oral Care in Long-term Care Facilities?

    Kidota Naomi, Aida Jun, Miura Hiroko, Osaka Ken

    Ronen Shika Igaku　33　(3)　335-343　2018

    Publisher: Japanese Society of Gerodontology

    ISSN： 0914-3866

    More details Close

    &lt;p&gt; Objectives：The association of directorsʼ or office managersʼ interest in oral health management with the levying of additional fees for oral care in long-term care facilities was examined.&lt;/p&gt;&lt;p&gt; Methods：We sent self-administered questionnaires to 1,806 long-term care facilities. As a proxy of implementation of oral care, the presence of an additional fee in public insurance for oral care in long-term care facilities was used as the dependent variable. Directorsʼ or office managersʼ interest in oral health management was used as the independent variable. Number of residents, nursing care level, dentistry services offered, presence of a dental professional, presence of an oral care manual, participation and enforcement of training on oral care, dental examinations, and access to dental care were entered as covariates. Poisson regression was used to estimate the prevalence ratio（PR）and 95％ confidence interval（95％CI）.&lt;/p&gt;&lt;p&gt; Results：Respectively 67.4％ and 67.7％ of the facilities obtained an additional fee for oral care when the director or office manager had an interest in oral health management. The multivariate adjusted PR for directorsʼ and managersʼ interest in oral health management when an additional fee was levied for oral care were 1.32（95％CI：1.07～1.63）and 1.29（95％CI：1.08～1.53）, respectively.&lt;/p&gt;&lt;p&gt; Conclusion：Our results demonstrated that, in facilities that offered dentistry services, employed a dental hygienist, and conducted regular dental checkups, an additional fee was levied for dental services when the facility director or office manager had an interest in oral health management. Directorsʼ or office managersʼ understanding of the importance of oral health management seems to be especially important for levying an additional fee for oral care in long-term care facilities.&lt;/p&gt;

  55. Health Inequalities among 3-year-old Children with Caries in Ibaraki Prefecture: An Ecological Study from 2005 to 2013

    IGARASHI Ayaka, AIDA Jun, TSUBOYA Toru, SUGIYAMA Kemmyo, TAKIZAWA Nobue, OSAKA Ken

    JOURNAL OF DENTAL HEALTH　68　(2)　85-91　2018

    Publisher: Japanese Society for Oral Health

    DOI： 10.5834/jdh.68.2_85 　

    ISSN： 0023-2831

  56. 福島第一原発事故被災ウシの歯と骨に含まれるSr-90測定

    西山純平, 小荒井 一真, 木野 康志, 清水 良央, 高橋 温, 鈴木 敏彦, 千葉 美麗, 小坂 健, 佐々木 啓一, 漆原 佑介, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    Proceedings of the 18th Workshop on Environmental Radioactivity　2017-6　196-201　2017/11

  57. 東北メディカル・メガバンク機構が実施したコホート調査の歯科健診

    小山 史穂子, 相田 潤, 川嶋 順子, 松井 裕之, 高井 貴子, 小坂 健, 栗山 進一, 寳澤 篤, 坪井 明人

    日本公衆衛生学会総会抄録集　76回　569-569　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  58. 高齢者の義歯の清掃習慣と呼吸器疾患との関連 JAGESプロジェクト横断研究

    草間 太郎, 相田 潤, 坪谷 透, 杉山 賢明, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　76回　301-301　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  59. 高齢者の目・耳・口の機能低下とソーシャルネットワークの関連 JAGES横断研究

    五十嵐 彩夏, 相田 潤, 坪谷 透, 杉山 賢明, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　76回　309-309　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  60. 地域介護予防事業の介護予防効果の評価

    荒井 遼, 相田 潤, 坪谷 透, 杉山 賢明, 引地 博之, 小坂 健, 佐藤 恭彰, 近藤 克則

    日本公衆衛生学会総会抄録集　76回　518-518　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  61. インフルエンザワクチン接種率は学歴によって異なる(Influenza vaccination coverage differs by academic background)

    チンゾリゴ・ツェルムーン, 杉山 賢明, 相田 潤, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　76回　538-538　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  62. 東日本大震災における宮城県内の災害公営住宅入居者健康調査結果

    佐藤 弥生子, 小野寺 保, 杉山 賢明, 坪谷 透, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　76回　596-596　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  63. ウェブ調査における災害のリスク認知と対策実施の状況について

    杉山 賢明, 山本 貴文, 五十嵐 彩夏, 原田 奈穂子, 草間 太郎, 坪谷 透, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　76回　597-597　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  64. 地域包括ケアシステムにおける災害対応の準備状況の把握 地域包括支援センター調査

    原田 奈穂子, 山本 貴文, 杉山 賢明, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　76回　637-637　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  65. 地域包括ケアシステムにおける災害対応の準備状況の把握 全国市区町村調査

    山本 貴文, 原田 奈穂子, 相田 潤, 坪谷 透, 杉山 賢明, 五十嵐 彩夏, 小坂 健

    日本公衆衛生学会総会抄録集　76回　638-638　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  66. 東日本大震災からの教訓 震災による健康被害の社会的決定要因 大学と自治体のコラボレーションのために必要なこと

    小坂 健

    日本公衆衛生学会総会抄録集　76回　151-151　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  67. 地域における歯科保健医療サービス提供困難者の実態把握と今後の対策-歯科口腔保健の推進に関する基本的事項の中間評価にむけての取り組み- 老人保健施設入所高齢者の歯科口腔保健に関する状況

    小坂 健

    日本公衆衛生学会総会抄録集　76回　209-209　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  68. 高齢者の義歯の清掃習慣と呼吸器疾患との関連 JAGESプロジェクト横断研究

    草間 太郎, 相田 潤, 坪谷 透, 杉山 賢明, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　76回　301-301　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  69. 高齢者の目・耳・口の機能低下とソーシャルネットワークの関連 JAGES横断研究

    五十嵐 彩夏, 相田 潤, 坪谷 透, 杉山 賢明, 山本 龍生, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　76回　309-309　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  70. 地域介護予防事業の介護予防効果の評価

    荒井 遼, 相田 潤, 坪谷 透, 杉山 賢明, 引地 博之, 小坂 健, 佐藤 恭彰, 近藤 克則

    日本公衆衛生学会総会抄録集　76回　518-518　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  71. インフルエンザワクチン接種率は学歴によって異なる(Influenza vaccination coverage differs by academic background)

    チンゾリゴ・ツェルムーン, 杉山 賢明, 相田 潤, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　76回　538-538　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  72. 東北メディカル・メガバンク機構が実施したコホート調査の歯科健診

    小山 史穂子, 相田 潤, 川嶋 順子, 松井 裕之, 高井 貴子, 小坂 健, 栗山 進一, 寳澤 篤, 坪井 明人

    日本公衆衛生学会総会抄録集　76回　569-569　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  73. 介護老人保健施設で口腔衛生管理体制加算を算定する施設の特性

    木戸田 直実, 五十嵐 彩夏, 山本 貴文, 相田 潤, 三浦 宏子, 小坂 健

    日本公衆衛生学会総会抄録集　76回　570-570　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  74. 東日本大震災における宮城県内の災害公営住宅入居者健康調査結果

    佐藤 弥生子, 小野寺 保, 杉山 賢明, 坪谷 透, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　76回　596-596　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  75. ウェブ調査における災害のリスク認知と対策実施の状況について

    杉山 賢明, 山本 貴文, 五十嵐 彩夏, 原田 奈穂子, 草間 太郎, 坪谷 透, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　76回　597-597　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  76. 地域包括ケアシステムにおける災害対応の準備状況の把握 地域包括支援センター調査

    原田 奈穂子, 山本 貴文, 杉山 賢明, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　76回　637-637　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  77. 地域包括ケアシステムにおける災害対応の準備状況の把握 全国市区町村調査

    山本 貴文, 原田 奈穂子, 相田 潤, 坪谷 透, 杉山 賢明, 五十嵐 彩夏, 小坂 健

    日本公衆衛生学会総会抄録集　76回　638-638　2017/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  78. 福島第一原発事故被災サルの歯と骨中90Srの相関および骨髄線量の推定

    小荒井 一真, 木野 康志, 西山 純平, 金子 拓, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 漆原 佑介, 鈴木 正敏, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　60回　109-109　2017/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  79. Electron spin resonance dosimetry by measuring CO2 radicals in monkey teeth and deciduous teeth of Japanese children

    岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 関根勉, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 漆原佑介, 鈴木正敏, 篠田壽, 福本学

    日本放射化学会年会・放射化学討論会研究発表要旨集(Web)　2017-61st　61 (WEB ONLY)　2017/09/01

  80. History estimation of Sr-90 movement in environments by measurements of Sr-90 in hard tissues of cattle suffered from the Fukushima Daiichi Nuclear Power Plant accident

    西山純平, 小荒井一真, 木野康志, 金子拓, 清水良央, 高橋温, 鈴木敏彦, 鈴木敏彦, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 漆原佑介, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集(Web)　2017-61st　62 (WEB ONLY)　2017/09/01

  81. Associations of Oral Health Status and Dental Health Service Utilization with Dental and Medical Expenditures

    TAKEUCHI Kenji, SATO Yukihiro, SUMA Shino, FURUTA Michiko, OKABE Yuka, TANAKA Akihiko, OSAKA Ken, YAMASHITA Yoshihisa

    JOURNAL OF DENTAL HEALTH　67　(3)　160-171　2017/07

    Publisher: (一社)日本口腔衛生学会

    DOI： 10.5834/jdh.67.3_160 　

    ISSN： 0023-2831

  82. ウシの歯に記録された福島第一原発事故によるSr‐90,Cs‐137汚染状況の推定

    小荒井一真, 木野康志, 西山純平, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 漆原佑介, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    アイソトープ・放射線研究発表会要旨集　54th　52　2017/06/20

  83. 東日本大震災被災者における不眠症と口腔愁訴との関連

    土谷 昌広, 相田 潤, 萩原 嘉廣, 菅原 由美, 遠又 靖丈, 佐藤 眞理, 渡邉 崇, 富田 博秋, 根本 英二, 渡邉 誠, 小坂 健, 辻 一郎

    PAIN RESEARCH　32　(2)　125-125　2017/06

    Publisher: 日本疼痛学会

    ISSN： 0915-8588

  84. 医療的ケアができる介護員の人材育成の課題と解決策

    遠藤 美紀, 伊藤 道哉, 小坂 健, 佐々木 みずほ, 川島 孝一郎

    日本在宅医学会大会　19回　183-183　2017/06

    Publisher: (一社)日本在宅医学会

  85. 健康日本21(第2次)の視点からみた介護予防の推進 新しい総合事業における口腔機能向上及び栄養改善の推進に資する地域医療介護連携の取組

    福泉 隆喜, 山口 摂崇, 植田 耕一郎, 菊谷 武, 平野 浩彦, 渡邊 裕, 小坂 健, 藤井 航, 北原 稔, 仲山 智恵, 早淵 仁美, 飯島 勝矢, 介護予防, 日常生活支援総合事業における口腔機能, 栄養, 運動複合型プログラムを用いた住民参加型介護予防活動に関する調査研究, 研究班

    老年社会科学　39　(2)　162-162　2017/06

    Publisher: 日本老年社会科学会

    ISSN： 0388-2446

  86. 健康日本21(第2次)の視点からみた介護予防の推進 新しい総合事業における口腔機能向上及び栄養改善の推進に資する地域医療介護連携の取組

    福泉 隆喜, 山口 摂崇, 植田 耕一郎, 菊谷 武, 平野 浩彦, 渡邊 裕, 小坂 健, 藤井 航, 北原 稔, 仲山 智恵, 早淵 仁美, 飯島 勝矢, 介護予防, 日常生活支援総合事業における口腔機能, 栄養, 運動複合型プログラムを用いた住民参加型介護予防活動に関する調査研究, 研究班

    日本老年医学会雑誌　54　(Suppl.)　38-38　2017/05

    Publisher: (一社)日本老年医学会

    ISSN： 0300-9173

  87. 口腔の健康状態及び歯科保健サービスが歯科医療費及び医療費に与える影響に関する文献レビュー

    竹内研時, 佐藤遊洋, 須磨紫乃, 古田美智子, 岡部優花, 田中照彦, 小坂健, 山下喜久

    口腔衛生学会雑誌　67　129　2017/04/30

    ISSN： 0023-2831

  88. 高学歴者の偏った歯科保健行動:フッ化物配合歯磨剤について

    宮本真由, 佐藤遊洋, 相田潤, 坪谷透, 小山史穂子, 杉山賢明, 松山祐輔, 山本貴文, 五十嵐彩夏, 小坂健

    口腔衛生学会雑誌　67　126　2017/04/30

    ISSN： 0023-2831

  89. 婚姻状態と現在歯数の関連:横断研究

    福井ゆかり, 佐藤遊洋, 相田潤, 坪谷透, 小山史穂子, 杉山賢明, 松山祐輔, 山本貴文, 五十嵐彩夏, 小坂健

    口腔衛生学会雑誌　67　142　2017/04/30

    ISSN： 0023-2831

  90. 3歳児う蝕有病割合の茨城県内格差の推移 地域相関研究(2005-2013年)

    五十嵐 彩夏, 相田 潤, 坪谷 透, 杉山 賢明, 小山 史穂子, 松山 祐輔, 佐藤 遊洋, 山本 貴文, 小坂 健

    口腔衛生学会雑誌　67　(増刊)　143-143　2017/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  91. 系統的レビューとコホート研究に基づく特定健診質問票の開発 歯科・口腔疾患とメタボリックシンドロームのエビデンスについて

    小坂健, 相田潤, 坪谷透, 松山祐輔, 佐藤遊洋

    系統的レビューとコホート研究に基づく特定健診質問票の開発 平成28年度 総括・分担研究報告書(Web)　2017

  92. 認知症発生リスクの減少および介護者等の負担軽減を目指したAge-Friendly Citiesの創生に関する研究 認知症のない生存時間の地域差と,関連要因の研究

    相田潤, 小坂健, 坪谷透, 小山史穂子, 杉山賢明, 松山祐輔, 佐藤遊洋, 五十嵐彩夏

    認知症発生リスクの減少および介護者等の負担軽減を目指したAge-Friendly Citiesの創生に関する研究 平成28年度 研究報告書(Web)　2017

  93. 介護予防を推進する地域づくりを戦略的に進めるための研究 ソーシャルキャピタルと高齢者の歯の喪失のコホート研究

    小山史穂子, 小坂健, 相田潤, 坪谷透, 松山祐輔, 佐藤遊洋, 五十嵐彩夏

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成28年度 総括・分担研究報告書 本編(Web)　2017

  94. 介護予防を推進する地域づくりを戦略的に進めるための研究 残存歯数とInstrumental Activities of Daily Livingの関連:前向きコホート研究

    相田潤, 小坂健, 坪谷透, 小山史穂子, 佐藤遊洋, 松山祐輔, 五十嵐彩夏

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成28年度 総括・分担研究報告書 本編(Web)　2017

  95. 介護予防を推進する地域づくりを戦略的に進めるための研究 日本人高齢者における歯の本数と要介護でいる期間の関連

    小坂健, 相田潤, 坪谷透, 小山史穂子, 松山祐輔, 佐藤遊洋, 五十嵐彩夏

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成28年度 総括・分担研究報告書 本編(Web)　2017

  96. 介護予防を推進する地域づくりを戦略的に進めるための研究 高齢期の口腔乾燥と現在歯数の関連性について

    坪谷透, 小坂健, 相田潤, 小山史穂子, 本多由武, 松山祐輔, 佐藤遊洋, 五十嵐彩夏

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成28年度 総括・分担研究報告書 本編(Web)　2017

  97. 発煙硝酸法とSr resin法による環境試料からのSr‐90の化学分離

    小荒井一真, 木野康志, 西山純平, 金子拓, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 漆原佑介, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    日本原子力学会東北支部研究交流会講演要旨集　41st　54‐55　2017

  98. Association between social relationship and glycemic control among older Japanese: JAGES cross-sectional study International-journal

    Kenichi Yokobayashi, Kenichi Yokobayashi, Ichiro Kawachi, Katsunori Kondo, Katsunori Kondo, Katsunori Kondo, Naoki Kondo, Yuiko Nagamine, Yuiko Nagamine, Yukako Tani, Yukako Tani, Kokoro Shirai, Kokoro Shirai, Susumu Tazuma, K. Kondo, M. Hanazato, H. Hikichi, Y. Miyaguni, Y. Sasaki, Y. Nagamine, T. Ashida, N. Kondo, D. Takagi, Y. Tani, J. Aida, K. Osaka, T. Tsuboya, S. Jeong, C. Murata, Saito, T. Ojima, E. Okada, M. Saito, H. Hirai, J. Misawa, K. Suzuki, T. Takeda, T. Yamamoto, M. Nakade, N. Cable, A. Tamakoshi, Y. Fujino, Y. Shobugawa, T. Hayashi

    PLoS ONE　12　(1)　e0169904　2017/01/01

    DOI： 10.1371/journal.pone.0169904 　

  99. ヒト歯を用いた被ばく線量評価事業 福島県歯科医師会での取り組み

    池山 丈二, 海野 仁, 金子 振, 小坂 健, 篠田 壽, 佐々木 啓一, 廣瀬 公治, 大野 敬

    みちのく歯学会雑誌　47　(1-2)　40-43　2016/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  100. ヒト歯を用いた被ばく線量評価事業 原発事故前に形成された乳歯の検討

    高橋 温, 清水 良央, 千葉 美麗, 鈴木 敏彦, 小荒井 一真, 岡 壽崇, 西山 純平, 木野 康志, 小坂 健, 篠田 壽, 佐々木 啓一

    みちのく歯学会雑誌　47　(1-2)　96-96　2016/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  101. 医療的ケアができる介護員の人材育成を促進するための研修の在り方

    遠藤 美紀, 伊藤 道哉, 小坂 健, 佐々木 みずほ, 川島 孝一郎

    日本難病医療ネットワーク学会機関誌　4　(1)　62-62　2016/11

    Publisher: 日本難病医療ネットワーク学会

    ISSN： 2188-1006

  102. 喫煙と交通事故死亡の関連:茨城県健康研究

    五十嵐彩夏, 五十嵐彩夏, 西連地利己, 西連地利己, 西連地利己, 相田潤, 坪谷透, 小山史穂子, 松山祐輔, 佐藤遊洋, 小坂健, 大田仁史, 大田仁史

    日本公衆衛生学会総会抄録集　75th　433-433　2016/10/15

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  103. 現在歯数と歯科受診の関連の横断研究

    小山史穂子, 相田潤, 坪谷透, 松山祐輔, 佐藤遊洋, 山本貴文, 五十嵐彩夏, 小坂健

    日本公衆衛生学会総会抄録集　75th　291-291　2016/10/15

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  104. 東日本大震災における宮城県内の応急仮設住宅入居者健康調査と分析結果

    橋本朱里, 小野寺保, 相田潤, 松山祐輔, 佐藤遊洋, 小山史穂子, 坪谷透, 小坂健

    日本公衆衛生学会総会抄録集　75th　580-580　2016/10/15

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  105. 特定健診・特定保健指導の今後 第三期に向けて 改めて「標準的」な質問票を考える 系統的レビューと総意形成を通して

    中山 健夫, 田原 康玄, 高橋 由光, 陳 和夫, 磯 博康, 三浦 克之, 岡村 智教, 小坂 健, 松尾 恵太郎, 神田 秀幸, 杉田 由加里, 立石 清一郎, 宮地 元彦, 武見 ゆかり

    日本公衆衛生学会総会抄録集　75回　155-155　2016/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  106. 現在歯数と歯科受診の関連の横断研究

    小山 史穂子, 相田 潤, 坪谷 透, 松山 祐輔, 佐藤 遊洋, 山本 貴文, 五十嵐 彩夏, 小坂 健

    日本公衆衛生学会総会抄録集　75回　291-291　2016/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  107. 喫煙と交通事故死亡の関連 茨城県健康研究

    五十嵐 彩夏, 西連地 利己, 相田 潤, 坪谷 透, 小山 史穂子, 松山 祐輔, 佐藤 遊洋, 小坂 健, 大田 仁史

    日本公衆衛生学会総会抄録集　75回　433-433　2016/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  108. 東日本大震災における宮城県内の応急仮設住宅入居者健康調査と分析結果

    橋本 朱里, 小野寺 保, 相田 潤, 松山 祐輔, 佐藤 遊洋, 小山 史穂子, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　75回　580-580　2016/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  109. 福島第一原子力発電所事故被災サルの歯、骨中90Srの測定と骨髄線量の推定

    小荒井 一真, 木野 康志, 西山 純平, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学

    日本放射線影響学会大会講演要旨集　59回　2-2　2016/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  110. 福島第一原発事故後の環境におけるヒトの歯を用いた外部被曝量の測定

    高橋 温, 岡 壽崇, 小荒井 一真, 三浦 富智, 鈴木 敏彦, 清水 良央, 千葉 美麗, 西山 純平, 木野 康志, 小坂 健, 佐々木 啓一, 篠田 壽

    日本放射線影響学会大会講演要旨集　59回　35-35　2016/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  111. 電子スピン共鳴法を用いたヒトの外部被ばく量推定

    岡 壽崇, 高橋 温, 小荒井 一真, 西山 純平, 木野 康志, 関根 勉, 清水 良央, 千葉 美麗, 鈴木 敏彦, 小坂 健, 佐々木 啓一, 篠田 壽

    日本放射線影響学会大会講演要旨集　59回　36-36　2016/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  112. Time course change in Sr-90 concentration in hard tissues of cattle suffered from the Fukushima Daiichi Nuclear Power Plant accident

    西山純平, 小荒井一真, 木野康志, 清水良央, 高橋温, 鈴木敏彦, 鈴木敏彦, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集(Web)　2016-60th　32 (WEB ONLY)　2016/09/01

  113. Dosimetry study by electron spin resonance spectroscopy using milk teeth of children

    岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 西山純平, 木野康志, 関根勉, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集(Web)　2016-60th　97 (WEB ONLY)　2016/09/01

  114. Estimation of Sr-90 and Cs-137 contamination in habitat of cattle by measuring of radioactive concentration in teeth.

    小荒井一真, 木野康志, 西山純平, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集(Web)　2016-60th　31 (WEB ONLY)　2016/09/01

  115. 歯学系グローバル人材育成における東北大学の取り組み

    洪 光, 斎藤 恵一, 小坂 健, 高橋 信博, 佐々木 啓一

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　35回　96-96　2016/07

    Publisher: 日本歯科医学教育学会

  116. 東日本大震災直後に入学した歯学部学生の災害歯科に対する意識調査

    冨士 岳志, 洪 光, 鈴木 敏彦, 小坂 健, 高橋 信博, 佐々木 啓一

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　35回　99-99　2016/07

    Publisher: 日本歯科医学教育学会

  117. 環境中からウシの歯へのSr‐90,Cs‐137の移行と安定同族元素との関係

    小荒井一真, 木野康志, 西山純平, 高橋温, 鈴木敏彦, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    アイソトープ・放射線研究発表会要旨集　53rd　103　2016/06/20

  118. 福島第一原発事故被災ウシの骨組織中のSr‐90及びCs‐137の測定

    西山純平, 小荒井一真, 木野康志, 清水良央, 千葉美麗, 佐々木啓一, 高橋温, 鈴木敏彦, 小坂健, 福田智一, 磯貝恵美子, 岡壽崇, 関根勉, 福本学, 篠田壽

    アイソトープ・放射線研究発表会要旨集　53rd　104　2016/06/20

  119. Advantages of Having a Family Dentist for Disabled Persons Living in Communities

    YAMAMOTO Kinumi, AIDA Jun, MATSUYAMA Yusuke, OHASHI Hidetaka, OSAKA Ken

    Journal of the Japanese Society for Disability and Oral Health　37　(2)　180-185　2016/06

    Publisher: (一社)日本障害者歯科学会

    DOI： 10.14958/jjsdh.37.180 　

    ISSN： 0913-1663

  120. 在宅・地域志向に対応した医療介護関係者の人材育成教育の動向(第5回) 歯科医師の基礎教育 地域包括ケアシステム体制における歯科教育

    小坂 健

    保健の科学　58　(5)　335-338　2016/05

    Publisher: (株)杏林書院

    ISSN： 0018-3342

  121. かかりつけ歯科医の有無と現在歯数の関連の横断研究

    畑岡 進, 佐藤 遊洋, 相田 潤, 坪谷 透, 小山 史穂子, 松山 祐輔, 山本 貴文, 小坂 健

    口腔衛生学会雑誌　66　(2)　292-292　2016/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  122. 喫煙に関連する疾患の認識と喫煙状況に関する横断研究

    熊谷 幸也, 佐藤 遊洋, 相田 潤, 坪谷 透, 小山 史穂子, 松山 祐輔, 山本 貴文, 小坂 健

    口腔衛生学会雑誌　66　(2)　293-293　2016/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  123. 禁煙店舗割合と喫煙率・死因別死亡の関連 グルメ検索サイトを用いた都道府県別分析

    星 真奈実, 坪谷 透, 小山 史穂子, 相田 潤, 松山 祐輔, 佐藤 遊洋, 山本 貴文, 小坂 健

    口腔衛生学会雑誌　66　(2)　296-296　2016/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  124. 歯を用いた個体被ばく線量評価 電子スピン共鳴法を用いた検討

    高橋 温, 岡 壽崇, 木野 康志, 清水 良央, 鈴木 敏彦, 千葉 美麗, 小坂 健, 篠田 壽, 佐々木 啓一

    日本歯科医学会誌　35　38-38　2016/03

    Publisher: 日本歯科医学会

    ISSN： 0286-164X

  125. A Report of Dental Hygienists for Local Residents

    10　(2)　35-42　2016/02

    Publisher: 日本歯科衛生学会

    ISSN： 1884-5193

  126. 介護予防を推進する地域づくりを戦略的に進めるための研究 個人レベルで見た要介護・不健康・死亡リスク要因 幼少期の虐待経験と高齢期の残存歯数の関連

    小坂健, 松山祐輔, 相田潤

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成27年度 総括・分担研究報告書　276‐283　2016

  127. 介護予防を推進する地域づくりを戦略的に進めるための研究 地域レベルのリスク要因 高齢者の抑うつ症状の悪化要因についての研究:東日本大震災被災者の縦断分析

    相田潤, 小坂健, 坪谷透

    介護予防を推進する地域づくりを戦略的に進めるための研究 平成27年度 総括・分担研究報告書　308‐317　2016

  128. ソーシャル・キャピタルと口腔健康の変化のコホート研究 JAGESプロジェクト

    小山 史穂子, 相田 潤, 斉藤 雅茂, 松山 祐輔, 佐藤 遊洋, 近藤 克則, 近藤 尚己, 尾島 俊之, 山本 龍生, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　74回　441-441　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  129. Do Residents' Recommendations on the Use of Toothpaste by Infants Differ Based on Their Alma Mater's Dental School?

    KOYAMA Shihoko, AIDA Jun, HASE Akihiro, MATSUYAMA Yusuke, SATO Yukihiro, MIURA Hiroko, OSAKA Ken

    JOURNAL OF DENTAL HEALTH　65　(5)　417-421　2015/10

    Publisher: (一社)日本口腔衛生学会

    DOI： 10.5834/jdh.65.5_417 　

    ISSN： 0023-2831

  130. ペット飼育とうつ症状 震災後の縦断研究・自然実験デザインからの知見(JAGES)

    坪谷 透, 相田 潤, 近藤 克則, 小坂 健

    日本公衆衛生学会総会抄録集　74回　353-353　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  131. 普遍化信頼および特定化信頼と主観的健康感の関連の研究 JAGESプロジェクト

    佐藤 遊洋, 相田 潤, 白井 こころ, 坪谷 透, 小山 史穂子, 松山 祐輔, 小坂 健, 近藤 克則

    日本公衆衛生学会総会抄録集　74回　409-409　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  132. ソーシャル・キャピタルと口腔健康の変化のコホート研究 JAGESプロジェクト

    小山 史穂子, 相田 潤, 斉藤 雅茂, 松山 祐輔, 佐藤 遊洋, 近藤 克則, 近藤 尚己, 尾島 俊之, 山本 龍生, 坪谷 透, 小坂 健

    日本公衆衛生学会総会抄録集　74回　441-441　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  133. 東日本大震災後の医療費一部負担金免除と医療費の関連 時系列データの政策評価研究

    松山 祐輔, 坪谷 透, 相田 潤, 小山 史穂子, 佐藤 遊洋, 山本 貴文, 小坂 健

    日本公衆衛生学会総会抄録集　74回　488-488　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  134. 宮城県内の地域包括ケアシステムの現状と課題

    山本 貴文, 相田 潤, 小山 史穂子, 松山 祐輔, 佐藤 遊洋, 小坂 健

    日本公衆衛生学会総会抄録集　74回　514-514　2015/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  135. 歯中放射能測定による体内Sr-90とCs-137推定

    小荒井 一真, 木野 康志, 西山 純平, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 佐々木 啓一, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    放射線ワークショップ講演論文集　1回　82-83　2015/10

    Publisher: (一社)日本放射線影響学会

  136. 東北大学歯学研究科・歯学部での留学生を対象とした災害歯科学教育

    冨士 岳志, 洪 光, 鈴木 敏彦, 齋藤 恵一, 坪井 明人, 小坂 健, 高橋 信博, 佐々木 啓一

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　34回　138-138　2015/07

    Publisher: 日本歯科医学教育学会

  137. 医療的ケアができる介護員の人材育成を促進するための研修の在り方

    遠藤 美紀, 伊藤 道哉, 小坂 健, 佐々木 みずほ, 川島 孝一郎

    日本在宅医学会大会　17回　280-280　2015/04

    Publisher: (一社)日本在宅医学会

  138. 緊急避難を取り入れた介護職員等の喀痰吸引等第3号研修の取り組み

    遠藤 美紀, 伊藤 道哉, 小坂 健, 佐々木 みずほ, 川島 孝一郎

    日本在宅医学会大会　17回　280-280　2015/04

    Publisher: (一社)日本在宅医学会

  139. 15歳のころの生活程度が低かった高齢者は歯が少ない JAGES projectのライフコース分析

    松山 祐輔, 相田 潤, 藤原 武男, 近藤 尚己, 山本 龍生, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　65　(2)　194-194　2015/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  140. 住民および専門職のソーシャル・キャピタルに関連した効果的・効率的な歯科保健事業の事例研究

    上野 路子, 相田 潤, 山本 龍生, 渕田 慎也, 平田 幸夫, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　65　(2)　196-196　2015/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  141. 宮城から、感染症のリスクを考える 感染症にどう対処するのか?リスクアセスメントとマネジメント

    小坂 健

    宮城県公衆衛生学会会誌　(47)　13-14　2015/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  142. 健康格差と向き合う 宮城県内の状況とその取組について

    小坂 健

    宮城県公衆衛生学会会誌　(47)　24-26　2015/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  143. Social Relationships and Mental Health among the Victims of The Great East Japan Earthquake; A Multilevel Longitudinal Study.

    Y. Matsuyama, J. Aida, A. Hase, Y. Sato, T. Tsuboya, K. Ito, S. Koyama, K. Osaka

    INTERNATIONAL JOURNAL OF EPIDEMIOLOGY　44　196-196　2015

    ISSN： 0300-5771

    eISSN： 1464-3685

  144. International Comparative Research of Oral Health Inequality between Japan and England.

    K. Ito, J. Aida, N. Cable, T. Yamamoto, K. Suzuki, K. Kondo, K. Osaka

    INTERNATIONAL JOURNAL OF EPIDEMIOLOGY　44　200-201　2015

    ISSN： 0300-5771

    eISSN： 1464-3685

  145. ヒト乳歯のCO2ラジカル測定による被ばく量推定

    岡壽崇, 岡壽崇, 高橋温, 小荒井一真, 木野康志, 関根勉, 清水良央, 千葉美麗, 鈴木敏彦, 小坂健, 佐々木啓一, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集　2015-59th　136　2015

    ISSN： 1345-2762

  146. 南相馬市で採取されたサルの軟骨に含まれる放射性Csの測定

    西山純平, 小荒井一真, 木野康志, 清水良央, 高橋温, 鈴木敏彦, 鈴木敏彦, 千葉美麗, 小坂健, 小坂健, 佐々木啓一, 福田智一, 磯貝恵美子, 岡壽崇, 岡壽崇, 関根勉, 関根勉, 福本学, 篠田壽

    日本放射化学会年会・放射化学討論会研究発表要旨集　2015-59th　127　2015

    ISSN： 1345-2762

  147. 未就学児の歯科受診にみられる地域・社会格差とその関連要因の解明

    松山祐輔, 相田潤, 小坂健

    8020公募研究報告書抄録(Web)　2015　15 (WEB ONLY)　2015

  148. 在宅高齢者の生活環境,地域環境および介護予防プログラム・介護サービスと高齢者の健康に関する疫学研究 高齢者のADLおよびIADLの地域差の,介護予防教室参加を含む原因の検討の横断研究

    小坂健, 松山祐輔

    在宅高齢者の生活環境、地域環境および介護予防プログラム・介護サービスと高齢者の健康に関する疫学研究 平成26年度 総括・分担研究報告書　13‐29　2015

  149. 【歯科変革の時"変わる"歯科ニーズに対応できているか?】

    三浦 宏子, 薄井 由枝, 小坂 健

    The Quintessence　34　(1)　0034-0044　2015/01

    Publisher: クインテッセンス出版(株)

    ISSN： 0286-407X

  150. 日本とイギリスの高齢者の口腔の健康 大規模疫学調査の比較研究

    相田 潤, 伊藤 奏, 小坂 健, 小山 史穂子

    8020: はち・まる・にい・まる　(14)　128-129　2015/01

    Publisher: (公財)8020推進財団

    ISSN： 2188-9082

  151. The Relationship between Career Education and Future Plans of Dental Residents : Cross-Sectional Study of all Dental Residents in Japan

    HASE Akihiro, AIDA Jun, TSUBOYA Toru, KOYAMA Shihoko, MATSUYAMA Yusuke, MIURA Hiroko, OSAKA Ken

    JOURNAL OF DENTAL HEALTH　65　(3)　276-282　2015

    Publisher: Japanese Society for Oral Health

    DOI： 10.5834/jdh.65.3_276 　

    ISSN： 0023-2831

  152. 東日本大震災による宮城県応急仮設住宅居住者の主観的健康観の悪化に影響する社会的要因の縦断研究

    田所 大典, 松山 祐輔, 相田 潤, 小坂 健

    日本集団災害医学会誌　19　(3)　505-505　2014/12

    Publisher: (一社)日本集団災害医学会

    ISSN： 1345-7047

  153. みなし仮説住宅入居者と応急仮説住宅の健康状態に関する比較研究

    草間 太郎, 松山 祐輔, 相田 潤, 小坂 健

    日本集団災害医学会誌　19　(3)　505-505　2014/12

    Publisher: (一社)日本集団災害医学会

    ISSN： 1345-7047

  154. 宮城県立精神医療センター入院患者における歯科保健指導方法の確立に向けた基礎調査

    小山 重人, 白石 成, 塙 総司, 細川 亮一, 小関 健由, 伊藤 恵美, 石河 理紗, 松井 裕之, 水戸 武彦, 貴田岡 亜希, 佐々木 啓一, 相田 潤, 小坂 健, 及川 祐司, 小高 晃

    みちのく歯学会雑誌　45　(1-2)　53-55　2014/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  155. 地域在住高齢者の口腔機能とQOLとの関連性についての共分散構造分析

    三浦 宏子, 原 修一, 守屋 信吾, 青山 旬, 小坂 健, 尾崎 哲則

    日本公衆衛生学会総会抄録集　73回　517-517　2014/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  156. 歯科口腔保健の重要性 疾病の公衆衛生上の重要性の4基準からの考察

    相田 潤, 小坂 健

    ヘルスサイエンス・ヘルスケア　14　(1)　3-12　2014/09

    Publisher: 深井保健科学研究所

    ISSN： 1881-1892

  157. 福島第一原発事故被災ニホンザルの全身骨組織への放射性物質取り込み

    清水 良央, 鈴木 敏彦, 漆原 佑介, 高橋 温, 千葉 美麗, 小坂 健, 福田 智一, 小荒井 一真, 木野 康志, 関根 勉, 磯貝 恵美子, 篠田 壽, 福本 学

    日本放射線影響学会大会講演要旨集　57回　119-119　2014/09

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  158. 福島第一原発事故に伴う旧警戒区域内の被災動物歯質中放射性Srの比放射能測定

    小荒井 一真, 木野 康志, 高橋 温, 鈴木 敏彦, 清水 良央, 千葉 美麗, 小坂 健, 福田 智一, 磯貝 恵美子, 岡 壽崇, 関根 勉, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　57回　105-105　2014/09

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  159. 福島第一原発事故による被災牛の硬組織に取り込まれた放射性物質の濃度と分布様相

    千葉 美麗, 清水 良央, 高橋 温, 鈴木 敏彦, 小荒井 一真, 木野 康志, 小坂 健, 福田 智一, 関根 勉, 磯貝 恵美子, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　57回　126-126　2014/09

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  160. 東北大学歯学部の災害歯科学に対する取り組み

    冨士 岳志, 鈴木 敏彦, 小坂 健, 笹野 泰之, 高橋 信博, 坪井 明人, 佐々木 啓一

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　33回　73-73　2014/07

    Publisher: 日本歯科医学教育学会

  161. 全国の研修歯科医のう蝕予防とフッ化物応用の知識の普及について

    長谷 晃広, 相田 潤, 伊藤 奏, 小山 史穂子, 松山 祐輔, 三浦 宏子, 小坂 健

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　33回　106-106　2014/07

    Publisher: 日本歯科医学教育学会

  162. 出身大学によって幼児への歯磨剤の使用の推奨は異なるのか

    小山 史穂子, 相田 潤, 長谷 晃広, 松山 祐輔, 伊藤 奏, 三浦 宏子, 小坂 健

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　33回　132-132　2014/07

    Publisher: 日本歯科医学教育学会

  163. 研修歯科医師の歯科訪問診療の実施意向と基本的知識の関連

    吉江 佑介, 相田 潤, 松山 祐輔, 伊藤 奏, 小山 史穂子, 長谷 晃広, 三浦 宏子, 小坂 健

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　33回　160-160　2014/07

    Publisher: 日本歯科医学教育学会

  164. 福島第一原発事故被災牛の歯中90Sr測定

    小荒井一真, 木野康志, 二瓶英和, 高橋温, 鈴木敏彦, 清水良央, 千葉美麗, 小坂健, 村上忍, 篠田壽, 福田智一, 磯貝恵美子, 岡壽崇, 関根勉, 福本学

    アイソトープ・放射線研究発表会要旨集　51st　64　2014/06/20

  165. Social participation and the prevention of functional disability in older Japanese: The JAGES cohort study

    Satoru Kanamori, Satoru Kanamori, Yuko Kai, Jun Aida, Jun Aida, Katsunori Kondo, Katsunori Kondo, Ichiro Kawachi, Hiroshi Hirai, Hiroshi Hirai, Kokoro Shirai, Kokoro Shirai, Yoshiki Ishikawa, Kayo Suzuki, Kayo Suzuki, K. Kondo, M. Hanazato, H. Hikichi, Y. Miyaguni, Y. Sasaki, Y. Nagamine, T. Ashida, N. Kondo, D. Takagi, Y. Tani, K. Osaka, T. Tsuboya, S. Jeong, C. Murata, T. Saito, T. Ojima, E. Okada, H. Todoriki, M. Saito, J. Misawa, Y. Ichida, T. Takeda, T. Yamamoto, M. Nakade, N. Cable, A. Tamakoshi, Y. Fujino, Y. Shobugawa, T. Hayashi

    PLoS ONE　9　(6)　2014/06/12

    DOI： 10.1371/journal.pone.0099638 　

    eISSN： 1932-6203

  166. 地域のソーシャル・キャピタルと高齢者の無歯顎の関連

    相田 潤, 近藤 克則, 山本 龍生, 伊藤 奏, 小坂 健

    口腔衛生学会雑誌　64　(2)　162-162　2014/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  167. 歯科医師の職場復帰に関連する要因 女性歯科医師が職場復帰しやすい環境を目指して

    鈴木 優理亜, 相田 潤, 坪谷 透, 伊藤 奏, 小山 史穂子, 長谷 晃広, 松山 祐輔, 三浦 宏子, 小坂 健

    口腔衛生学会雑誌　64　(2)　169-169　2014/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  168. 歯学部におけるキャリア教育の実態調査

    小山 史穂子, 長谷 晃広, 伊藤 奏, 松山 祐輔, 坪谷 透, 相田 潤, 三浦 宏子, 小坂 健

    口腔衛生学会雑誌　64　(2)　214-214　2014/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  169. 日本人高齢者における、補綴物使用格差 全国30自治体の地域比較

    松山 祐輔, 相田 潤, 山本 龍生, 坪谷 透, 伊藤 奏, 小山 史穂子, 長谷 晃広, 近藤 克則, 小坂 健

    口腔衛生学会雑誌　64　(2)　217-217　2014/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  170. 介護員によるたん吸引等の医療的ケアが制度化されたことにより、在宅医療を支える人材育成は促進されたのか

    遠藤 美紀, 佐々木 みずほ, 小坂 健, 伊藤 道哉, 川島 孝一郎

    日本在宅医学会大会　16回　253-253　2014/03

    Publisher: (一社)日本在宅医学会

  171. 医療と介護における多職種連携上の課題アンケート調査結果と「つながライン」の考案(第一報)

    佐々木 みずほ, 川島 孝一郎, 遠藤 美紀, 小坂 健, 伊藤 道哉, 武吉 宏典

    日本在宅医学会大会　16回　344-344　2014/03

    Publisher: (一社)日本在宅医学会

  172. 医療と介護における多職種連携上の課題アンケート調査結果と「つながライン」の考案(第二報)

    佐々木 みずほ, 川島 孝一郎, 遠藤 美紀, 小坂 健, 伊藤 道哉, 武吉 宏典

    日本在宅医学会大会　16回　345-345　2014/03

    Publisher: (一社)日本在宅医学会

  173. 歯の少ない高齢者は3年後の閉じこもりが多い:AGESプロジェクトコホート研究

    小山史穂子, 相田潤, 近藤克則, 山本龍生, 大塚理加, 中出美代, 岡田栄作, 鈴木佳代, 引地博之, 小坂健

    J Epidemiol　24　(Supplement 1)　120　2014/01/23

    ISSN： 0917-5040

  174. 学校フッ化物洗口が12歳児う蝕の都道府県格差に及ぼす影響:パネルデータを用いた地域相関研究

    松山祐輔, 相田潤, 小坂健

    J Epidemiol　24　(Supplement 1)　116　2014/01/23

    ISSN： 0917-5040

  175. 介護予防を推進する地域づくりを戦略的に進めるための研究 大規模調査の実施と地域診断・地域格差と関連要因の検討 日本人高齢者の義歯使用の地域格差と関連要因の分析

    小坂健, 相田潤, 松山祐輔

    介護予防を推進する地域づくりを戦略的に進めるための研究(近藤班) 平成25年度 総括・分担研究報告書　116-121　2014

  176. Association between Periodontitis and Stroke : A Meta-analysis Based on Periodontal Measurement Characteristics

    MATSUYAMA Yusuke, AIDA Jun, TAKEUCHI Kenji, ITO Kanade, NAKAYASU Mieko, KOYAMA Shihoko, HASE Akihiro, TSUBOYA Toru, OSAKA Ken

    JOURNAL OF DENTAL HEALTH　64　(1)　2-9　2014

    Publisher: Japanese Society for Oral Health

    DOI： 10.5834/jdh.64.1_2 　

    ISSN： 0023-2831

  177. 東北大学歯学部・歯学研究科における新機軸の教育研究の展開

    佐々木 啓一, 竹内 裕尚, 天雲 太一, 洪 光, 真柳 弦, 西岡 貴志, 鈴木 治, 高橋 信博, 小坂 健

    みちのく歯学会雑誌　44　(1-2)　17-21　2013/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  178. 東北大学における災害歯科学への取り組み

    冨士 岳志, 鈴木 敏彦, 坪井 明人, 小坂 健, 笹野 泰之, 高橋 信博, 佐々木 啓一

    みちのく歯学会雑誌　44　(1-2)　22-23　2013/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  179. 高齢者の無歯顎の地域格差とソーシャルキャピタルの関連 JAGESプロジェクト

    相田 潤, 近藤 克則, 山本 龍生, 竹内 研時, 小坂 健

    日本公衆衛生学会総会抄録集　72回　460-460　2013/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  180. 歯科医師としての将来設計とキャリア教育の効果の検討

    長谷 晃広, 相田 潤, 坪谷 透, 小山 史穂子, 三浦 宏子, 小坂 健

    日本公衆衛生学会総会抄録集　72回　497-497　2013/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  181. 学校フッ化物洗口による、子どものう蝕の都道府県格差改善効果 地域相関研究

    松山 祐輔, 相田 潤, 坪谷 透, 伊藤 奏, 小山 史穂子, 長谷 晃弘, 小坂 健

    日本公衆衛生学会総会抄録集　72回　500-500　2013/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  182. 福島第一原発事故被災牛の形成中硬組織への放射性物質取り込み

    清水 良央, 千葉 美麗, 高橋 温, 鈴木 敏彦, 小坂 健, 福田 智一, 木野 康志, 関根 勉, 磯貝 恵美子, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　56回　128-128　2013/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  183. 福島第一原発事故による被災動物の硬組織に含まれる放射性ストロンチウムの抽出と解析

    鈴木 敏彦, 二瓶 英和, 小荒井 一真, 木野 康志, 高橋 温, 清水 良央, 千葉 美麗, 小坂 健, 福田 智一, 磯貝 恵美子, 関根 勉, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　56回　128-128　2013/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  184. 福島第一原発事故被災地域に棲息する野生アカネズミの歯の線量解析

    篠田 壽, 木野 康志, 中田 章史, 葛西 宏介, 高橋 温, 清水 良央, 鈴木 敏彦, 千葉 美麗, 小坂 健, 福田 智一, 磯貝 恵美子, 関根 勉, 福本 学, 三浦 富智

    日本放射線影響学会大会講演要旨集　56回　129-129　2013/10

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  185. Background and History of Microbiological Risk Assessment

    豊福 肇, 小坂 健

    食品衛生研究 = Food sanitation research　63　(8)　13-22　2013/08

    Publisher: 日本食品衛生協会

    ISSN： 0559-8974

  186. 微生物リスク評価の経緯

    豊福 肇, 小坂 健

    食品衛生研究　63　(8)　13-22　2013/08

    Publisher: (公社)日本食品衛生協会

    ISSN： 0559-8974

  187. 歯学大学院教育グローバル化への東北大学の取り組み

    洪 光, 佐々木 啓一, 高橋 信博, 小坂 健, 斎藤 恵一

    日本歯科医学教育学会総会・学術大会プログラム・抄録集　32回　98-98　2013/07

    Publisher: 日本歯科医学教育学会

  188. 仮設住宅居住の高齢者における、低い外出頻度に関する関連要因の検討

    増野 華菜子, 相田 潤, 小坂 健, 近藤 克則

    老年社会科学　35　(2)　262-262　2013/06

    Publisher: 日本老年社会科学会

    ISSN： 0388-2446

  189. P-76 虚弱高齢者における摂食・嚥下機能の低下と健康関連QOLとの関連性(ポスター)

    三浦 宏子, 森崎 直子, 薄井 由枝, 原 修一, 角 保徳, 小坂 健

    口腔衛生学会雑誌　63　(2)　205-205　2013/04/30

    Publisher: 有限責任中間法人日本口腔衛生学会

    ISSN： 0023-2831

  190. P-47 歯周病と脳卒中の関連:測定指標の差異を考慮したメタアナリシス(ポスター)

    松山 祐輔, 相田 潤, 竹内 研時, 伊藤 奏, 中安 美枝子, 小山 史穂子, 長谷 晃広, 成田 展章, 坪谷 透, 小坂 健

    口腔衛生学会雑誌　63　(2)　189-189　2013/04/30

    Publisher: 有限責任中間法人日本口腔衛生学会

    ISSN： 0023-2831

  191. P-73 口腔ケアによる肺炎の抑制効果 : メタアナリシスによる検討(ポスター)

    長谷 晃広, 相田 潤, 竹内 研時, 伊藤 奏, 中安 美枝子, 小山 史穂子, 成田 展章, 坪谷 透, 小坂 健

    口腔衛生学会雑誌　63　(2)　204-204　2013/04/30

    Publisher: 有限責任中間法人日本口腔衛生学会

    ISSN： 0023-2831

  192. The Internationalization Strategy in the Postgraduate Education of Tohoku University Graduate School of Dentistry : Possibility of a Double Degree Program

    HONG Guang, SASAKI Keiichi, TAKAHASHI Nobuhiro, OSAKA Ken

    日本歯科医学教育学会雑誌 = Journal of Japanese Association for Dental Education　29　(1)　49-54　2013/04/20

    Publisher: 日本歯科医学教育学会

    ISSN： 0914-5133

    eISSN： 2433-1651

  193. 歯周病と脳卒中の関連 測定指標の差異を考慮したメタアナリシス

    松山 祐輔, 相田 潤, 竹内 研時, 伊藤 奏, 中安 美枝子, 小山 史穂子, 長谷 晃広, 成田 展章, 坪谷 透, 小坂 健

    口腔衛生学会雑誌　63　(2)　189-189　2013/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  194. 口腔ケアによる肺炎の抑制効果 メタアナリシスによる検討

    長谷 晃広, 相田 潤, 竹内 研時, 伊藤 奏, 中安 美枝子, 小山 史穂子, 成田 展章, 坪谷 透, 小坂 健

    口腔衛生学会雑誌　63　(2)　204-204　2013/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  195. 虚弱高齢者における摂食・嚥下機能の低下と健康関連QOLとの関連性

    三浦 宏子, 森崎 直子, 薄井 由枝, 原 修一, 角 保徳, 小坂 健

    口腔衛生学会雑誌　63　(2)　205-205　2013/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  196. 東日本大震災による義歯喪失と口腔のQOLの関連

    佐藤 遊洋, 相田 潤, 竹内 研時, 若栗 真太郎, 冨士 岳志, 服部 佳功, 小関 健由, 小坂 健, 佐々木 啓一, 辻 一郎

    宮城県公衆衛生学会会誌　(45)　5-5　2013/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  197. 宮城県の健康課題に挑戦する 虫歯本数が日本一多い県から脱却するために

    小坂 健

    宮城県公衆衛生学会会誌　(45)　14-15　2013/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  198. 喫煙行動の社会格差と社会環境の関係

    AIDA JUN, KONDO KATSUNORI, SAITO MASASHIGE, SUZUKI KAYO, OSAKA KEN

    J Epidemiol　23　(Supplement 1)　105　2013/01/24

    ISSN： 0917-5040

  199. 宮城県における東日本大震災被災者の健康状態等に関する調査 被災者の生活習慣の変化とその影響に関する検討

    平野かよ子, 菅原由美, 辻一郎, 中原篤史, 佐藤紀子, 柿崎真沙子, 高橋英子, 曽根稔雅, 福地成, 遠又靖丈, 松尾兼幸, 周婉てい, 渡邉崇, 杉山賢明, 本蔵賢治, 小暮真奈, 押谷仁, 八重樫伸生, 永富良一, 井樋栄二, 南優子, 佐々木啓一, 小坂健

    宮城県における東日本大震災被災者の健康状態等に関する調査 平成24年度総括・分担研究報告書　32-38　2013

  200. 宮城県における東日本大震災被災者の健康状態等に関する調査 被災地高齢者の生活機能の推移:石巻市雄勝地区・牡鹿地区の実態

    辻一郎, 遠又靖丈, 中原篤史, 佐藤紀子, 柿崎真沙子, 高橋英子, 曽根稔雅, 福地成, 松尾兼幸, 周婉てい, 渡邉崇, 杉山賢明, 本蔵賢治, 小暮真奈, 押谷仁, 平野かよ子, 松岡洋夫, 八重樫伸生, 永富良一, 井樋栄二, 南優子, 佐々木啓一, 小坂健, 粟田主一

    宮城県における東日本大震災被災者の健康状態等に関する調査 平成24年度総括・分担研究報告書　96-102　2013

  201. 宮城県における東日本大震災被災者の健康状態等に関する調査 母子保健の影響に関する検討

    八重樫伸生, 辻一郎, 中原篤史, 佐藤紀子, 柿崎真沙子, 高橋英子, 曽根稔雅, 福地成, 遠又靖丈, 菅原由美, 松尾兼幸, 周婉てい, 渡邉崇, 杉山賢明, 本蔵賢治, 小暮真奈, 平野かよ子, 松岡洋夫, 永富良一, 南優子, 佐々木啓一, 小坂健

    宮城県における東日本大震災被災者の健康状態等に関する調査 平成24年度総括・分担研究報告書　48-85　2013

  202. 宮城県における東日本大震災被災者の健康状態等に関する調査 生活環境の推移とその影響に関する検討

    押谷仁, 辻一郎, 神垣太郎, 三村敬司, 中原篤史, 佐藤紀子, 柿崎真沙子, 高橋英子, 曽根稔雅, 福地成, 遠又靖丈, 菅原由美, 松尾兼幸, 周婉てい, 渡邉崇, 杉山賢明, 本蔵賢治, 小暮真奈, 平野かよ子, 松岡洋夫, 八重樫伸生, 永富良一, 井樋栄二, 南優子, 佐々木啓一, 小坂健

    宮城県における東日本大震災被災者の健康状態等に関する調査 平成24年度総括・分担研究報告書　23-31　2013

  203. 介護予防事業の進捗管理と効果評価のためのデータ整備に関する研究 介護予防に資する生活習慣・生活行動に関する研究:鶴ケ谷10年後調査

    辻一郎, 小坂健, 相田潤, 瀧靖之, 中川晴夫, 柿崎真沙子, 遠又靖丈, 菅原由美, 周婉てい, 渡邉崇, 杉山賢明, 本藏賢治, 小暮真奈

    介護予防事業の進捗管理と効果評価のためのデータ整備に関する研究 平成24年度総括・分担研究報告書　35-57　2013

  204. 口腔保健とQOLの向上に関する総合的研究 口腔と全身疾患に関するシステマティックレビュー 1)歯周病と脳卒中の関連:測定指標の差異を考慮したメタアナリシス

    小坂健, 松山祐輔, 長谷晃広, 相田潤, 坪谷透, 竹内研時, 伊藤奏, 小山史穂子, 中安美枝子, 成田展章

    口腔保健とQOLの向上に関する総合的研究 平成24年度 総括・分担研究報告書　25-28　2013

  205. 口腔保健とQOLの向上に関する総合的研究 口腔と全身疾患に関するシステマティックレビュー 2)口腔ケアによる肺炎の予防効果:メタアナリシスによる検討

    小坂健, 長谷晃広, 松山祐輔, 相田潤, 坪谷透, 竹内研時, 伊藤奏, 小山史穂子, 中安美枝子, 成田展章

    口腔保健とQOLの向上に関する総合的研究 平成24年度 総括・分担研究報告書　29-35　2013

  206. 歯科疾患の疫病構造及び歯科医療需要等の変化に応じた新たな歯科医療の構築に関する研究 研修歯科医のキャリア展開に関する研究

    小坂健, 相田潤, 坪谷透, 小山史穂子, 長谷晃広, 成田展章

    歯科疾患の疾病構造及び歯科医療需要等の変化に応じた新たな歯科医療の構築に関する研究 平成24年度 総括・分担研究報告書　27-58　2013

  207. Which Factors Are Associated with the Participation Rate in an Oral Function Improvement Program?

    ITO Kanade, AIDA Jun, WAKAGURI Shintaro, NOGUCHI Yuki, OSAKA Ken

    Ronen Shika Igaku　27　(3)　285-290　2012/12/31

    Publisher: (一社)日本老年歯科医学会

    DOI： 10.11259/jsg.27.285 　

    ISSN： 0914-3866

  208. 口腔の健康格差の社会疫学研究

    相田 潤, 若栗 真太郎, 小坂 健

    東北大学歯学雑誌　31　(2)　106-106　2012/12

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

  209. 地域住民の音声・構音機能が健康関連QOLに及ぼす影響

    原 修一, 三浦 宏子, 山崎 きよ子, 小坂 健

    日本公衆衛生学会総会抄録集　71回　374-374　2012/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  210. Investigation of Factors Promoting Association between Home Care Support Offices and Dentists

    ITO Kanade, AIDA Jun, WAKAGURI Shintaro, NOGUCHI Yuki, OSAKA Ken

    老年歯科医学 = Japanese journal of gerodontology　27　(2)　114-120　2012/09/30

    Publisher: (一社)日本老年歯科医学会

    DOI： 10.11259/jsg.27.114 　

    ISSN： 0914-3866

  211. 歯と骨を用いた被災動物内部被曝量の解析

    千葉 美麗, 清水 良央, 高橋 温, 鈴木 敏彦, 相田 潤, 小坂 健, 磯貝 恵美子, 木野 康志, 福本 学, 篠田 壽

    日本放射線影響学会大会講演要旨集　55回　105-105　2012/09

    Publisher: (一社)日本放射線影響学会

    ISSN： 1347-8680

  212. 東北大学地域保健支援センター活動報告

    中原 篤史, 佐藤 眞理, 佐藤 紀子, 渡邉 崇, 柿崎 真沙子, 遠又 靖丈, 高橋 英子, 菅原 由美, 曽根 稔雅, 周 婉てい, 小坂 健, 福地 成, 松岡 洋夫, 永富 良一, 八重樫 伸生, 南 優子, 平野 かよ子, 押谷 仁, 辻 一郎

    東北公衆衛生学会誌　(61)　48-48　2012/07

    Publisher: 東北公衆衛生学会

    ISSN： 0915-549X

  213. 自己評価口腔の健康度にはお小遣いが関連するか 社会経済的地位指標としてのお小遣いの利用

    伊藤 奏, 相田 潤, 若栗 真太郎, 竹内 研時, 野口 有紀, 小坂 健

    口腔衛生学会雑誌　62　(2)　205-205　2012/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  214. 東日本大震災による歯科医院への通院の中断と再開とその関連要因

    末永 竜右, 相田 潤, 竹内 研時, 若栗 真太郎, 服部 佳功, 小関 健由, 小坂 健, 佐々木 啓一, 辻 一郎

    口腔衛生学会雑誌　62　(2)　255-255　2012/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  215. 震災による義歯喪失の実態とその影響について

    佐藤 遊洋, 相田 潤, 竹内 研時, 若栗 真太郎, 服部 佳功, 小関 健由, 小坂 健, 佐々木 啓一, 辻 一郎

    口腔衛生学会雑誌　62　(2)　256-256　2012/04

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  216. 口腔・栄養・運動複合型プログラムの介入研究

    野口 有紀, 相田 潤, 小坂 健, 辻 一郎

    宮城県公衆衛生学会会誌　(44)　10-10　2012/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  217. 口腔保健とQOLの向上に関する総合的研究 地域高齢者の社会経済状況とQOLに関わる口腔の治療との関連

    小坂健, 相田潤, 松山祐輔

    口腔保健とQOLの向上に関する総合的研究 平成23年度 総括・分担研究報告書　31-33　2012

  218. Gender differences in the association between self-rated oral health and socioeconomic status among Japanese

    Shintaro Wakaguri, Kanade Ito, Jun Aida, Kenji Takeuchi, Ken Osaka

    Interface Oral Health Science 2011　294-296　2012/01/01

    DOI： 10.1007/978-4-431-54070-0_87 　

  219. Socioeconomic inequalities in tooth loss among Japanese

    Kanade Ito, Jun Aida, Shintaro Wakaguri, Kenji Takeuchi, Yuki Noguchi, Yuki Noguchi, Ken Osaka

    Interface Oral Health Science 2011　291-293　2012/01/01

    DOI： 10.1007/978-4-431-54070-0_86 　

  220. 介護保険の総合的政策評価ベンチマーク・システムの開発 4)マルチレベル分析・GIS(地理情報システム)を用いた分析 ソーシャルキャピタルと高齢者の残存歯数の関連;J‐AGESプロジェクト

    小坂健, 山本龍生, 相田潤, 竹内研時

    介護保険の総合的政策評価ベンチマーク・システムの開発 平成23年度 総括・分担研究報告書　170-175　2012

  221. Investigation of Factors Promoting Association between Home Care Support Offices and Dentists

    Ito Kanade, Aida Jun, Wakaguri Shintaro, Noguchi Yuki, Osaka Ken

    Ronen Shika Igaku　27　(2)　114-120　2012

    Publisher: Japanese Society of Gerodontology

    ISSN： 0914-3866

    eISSN： 1884-7323

  222. 都道府県歯科保健条例の記載事項の比較

    竹内 研時, 相田 潤, 岩城 倫弘, 田口 千恵子, 田浦 勝彦, 小林 清吾, 小坂 健

    ヘルスサイエンス・ヘルスケア　11　(2)　72-77　2011/12

    Publisher: 深井保健科学研究所

    ISSN： 1881-1892

  223. リハ医に役立つベーシック老年医学 高齢者の感染症対策

    小坂 健

    Journal of Clinical Rehabilitation　20　(11)　1062-1066　2011/11

    Publisher: 医歯薬出版(株)

    ISSN： 0918-5259

  224. 都道府県がん対策推進計画における「がん医療」のアクションプラン評価

    米澤 純子, 今井 博久, 小坂 健, 渡邊 清高, 助友 裕子, 福田 吉治, 種田 憲一郎, 児玉 知子, 中尾 裕之, 高祖 麻美, 佐田 文宏

    日本公衆衛生学会総会抄録集　70回　429-429　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  225. 地域高齢者における摂食・嚥下障害リスクとQOLとの関連性

    原 修一, 三浦 宏子, 山崎 きよ子, 小坂 健

    日本公衆衛生学会総会抄録集　70回　318-318　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  226. 在宅療養支援診療所の概況と医科歯科連携

    小野 瑞穂, 若栗 真太郎, 松山 祐輔, 竹内 研時, 伊藤 奏, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　70回　329-329　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  227. 在宅療養における医科歯科連携の実施状況と連携拡大に求められる事項の検討

    松山 祐輔, 若栗 真太郎, 小野 瑞穂, 竹内 研時, 伊藤 奏, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　70回　329-329　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  228. 訪問看護事業所における歯科連携の検証

    野口 有紀, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　70回　330-330　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  229. 高齢者における社会参加と口腔の主観的健康度の関連

    竹内 研時, 相田 潤, 小坂 健, 近藤 克則

    日本公衆衛生学会総会抄録集　70回　342-342　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  230. お小遣いか世帯収入か? 仮想評価法を用いた歯の健康への支払意思額との関連

    伊藤 奏, 相田 潤, 竹内 研時, 小坂 健

    日本公衆衛生学会総会抄録集　70回　342-342　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  231. 高等学校における新型インフルエンザ感染拡大時の対応の現状

    長谷 晃広, 竹内 研時, 若栗 真太郎, 伊藤 奏, 相田 潤, 小坂 健

    日本公衆衛生学会総会抄録集　70回　417-417　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  232. 都道府県がん対策推進計画のアクションプラン進捗状況

    高祖 麻美, 今井 博久, 小坂 健, 渡邊 清高, 助友 裕子, 福田 吉治, 種田 憲一郎, 児玉 知子, 中尾 裕之, 米澤 純子, 佐田 文宏

    日本公衆衛生学会総会抄録集　70回　428-428　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  233. 退院時カンファランスにおける歯科の連携体制の構築の検討

    薄井 由枝, 三浦 宏子, 染谷 眞喜子, 守屋 信吾, 小坂 健

    日本公衆衛生学会総会抄録集　70回　430-430　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  234. 保健・栄養指導時に活用可能な咀嚼能力チェックリストの開発とその応用性の検討

    三浦 宏子, 佐藤 加代子, 原 修一, 山崎 きよ子, 安藤 雄一, 小坂 健

    日本公衆衛生学会総会抄録集　70回　475-475　2011/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  235. 高齢者におけるオーラルディアドコキネシスと健康関連QOLとの関連性

    三浦 宏子, 原 修一, 角 保徳, 守屋 信吾, 小坂 健, 山崎 きよ子

    老年歯科医学　26　(2)　145-146　2011/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  236. 在宅療養者における口腔内と栄養摂取状態との関連

    若栗 真太郎, 相田 潤, 竹内 研時, 伊藤 奏, 野口 有紀, 小坂 健

    老年歯科医学　26　(2)　163-164　2011/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  237. 高齢者の発話が口腔機能および健康関連QOLに及ぼす影響 音響分析を用いた検討

    原 修一, 三浦 宏子, 山崎 きよ子, 小坂 健

    老年歯科医学　26　(2)　198-199　2011/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  238. 一般住民の訪問歯科診療に対する認知に関する研究

    白川 力丸, 伊藤 奏, 若栗 真太郎, 竹内 研時, 相田 潤, 小坂 健

    老年歯科医学　26　(2)　212-213　2011/09

    Publisher: (一社)日本老年歯科医学会

    ISSN： 0914-3866

  239. 高齢者における社会参加と残存歯数の関連

    竹内 研時, 相田 潤, 小坂 健, 近藤 克則

    口腔衛生学会雑誌　61　(4)　429-429　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  240. 仮想評価法を用いた歯の健康に対する支払意思額と社会経済的地位との関連について

    伊藤 奏, 相田 潤, 若栗 真太郎, 野口 有紀, 竹内 研時, 小坂 健

    口腔衛生学会雑誌　61　(4)　430-430　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  241. 口腔の主観的健康感と社会経済的地位との関連

    若栗 真太郎, 伊藤 奏, 相田 潤, 白川 力丸, 小坂 健

    口腔衛生学会雑誌　61　(4)　440-440　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  242. 高齢者におけるオーラルディアドコキネシス評価指標に関する検討

    三浦 宏子, 原 修一, 角 保徳, 守屋 信吾, 玉置 洋, 小坂 健

    口腔衛生学会雑誌　61　(4)　455-455　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  243. 成人におけるフッ化物配合歯磨剤の効果的な使用方法の検証

    野口 有紀, 伊藤 奏, 相田 潤, 小坂 健

    口腔衛生学会雑誌　61　(4)　464-464　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  244. 都道府県主体の歯科保健推進条例制定を進めるために

    竹内 研時, 岩城 倫弘, 田口 千恵子, 田浦 勝彦, 小林 清吾, 相田 潤, 小坂 健

    口腔衛生学会雑誌　61　(4)　487-487　2011/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  245. The association between neighborhood social capital and self-reported dentate status in elderly Japanese - The Ohsaki cohort 2006 study

    Jun Aida, S. Kuriyama, K. Ohmori-Matsuda, A. Hozawa, K. Osaka, I. Tsuji

    Community Dentistry and Oral Epidemiology　39　(3)　239-249　2011/06/01

    DOI： 10.1111/j.1600-0528.2010.00590.x 　

    ISSN： 0301-5661

    eISSN： 1600-0528

  246. 歯科保健からトータルヘルスへ 口は健康への入り口

    小坂 健

    宮城県公衆衛生学会会誌　(43)　20-21　2011/06

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  247. 高齢者におけるオーラルディアドコキネシスと健康関連QOLとの関連性

    三浦 宏子, 原 修一, 角 保徳, 守屋 信吾, 小坂 健, 山崎 きよ子

    日本老年歯科医学会総会・学術大会プログラム・抄録集　22回　133-133　2011/06

    Publisher: (一社)日本老年歯科医学会

  248. 在宅療養者における口腔内と栄養摂取状態との関連

    若栗 真太郎, 伊藤 奏, 相田 潤, 白川 力丸, 小坂 健

    日本老年歯科医学会総会・学術大会プログラム・抄録集　22回　146-146　2011/06

    Publisher: (一社)日本老年歯科医学会

  249. 高齢者の発話が口腔機能および健康関連QOLに及ぼす影響 音響分析を用いた検討

    原 修一, 三浦 宏子, 山崎 きよ子, 小坂 健

    日本老年歯科医学会総会・学術大会プログラム・抄録集　22回　170-170　2011/06

    Publisher: (一社)日本老年歯科医学会

  250. 一般住民の訪問歯科診療に対する認知度に関する研究

    白川 力丸, 伊藤 奏, 相田 潤, 若栗 真太郎, 小坂 健

    日本老年歯科医学会総会・学術大会プログラム・抄録集　22回　179-179　2011/06

    Publisher: (一社)日本老年歯科医学会

  251. 介護予防に対する補綴歯科の新たなチャレンジ 健康寿命と介護予防

    小坂 健

    日本補綴歯科学会誌　3　(特別号)　88-88　2011/05

    Publisher: (公社)日本補綴歯科学会

    ISSN： 1883-4426

  252. 口腔保健とQOLの向上に関する総合的研究 高齢者の口腔と全身の健康に影響する要因に関する研究

    小坂健, 竹内研時, 松山祐輔

    口腔保健とQOLの向上に関する総合的研究 平成22年度 研究報告書　22-24　2011

  253. 都道府県がん対策推進計画の評価と推進 都道府県のアクションプランをどう進めていくか がん検診と保健事業

    小坂 健

    日本医療・病院管理学会誌　48　(1)　54-54　2011/01

    Publisher: (一社)日本医療・病院管理学会

    ISSN： 1882-594X

  254. 介護予防グミの開発 研究テーマ:介護予防食品の開発に関する研究

    小坂 健, 相田 潤, 若栗 真太郎, 若生 利津子

    8020: はち・まる・にい・まる　(10)　126-127　2011/01

    Publisher: (公財)8020推進財団

    ISSN： 2188-9082

  255. 介護予防における口腔機能向上サービスの推進に関する研究 口腔機能向上サービスの普及・啓発のための研修結果

    岩佐 康行, 渡邊 裕, 池主 憲夫, 植田 耕一郎, 菊谷 武, 北原 稔, 戸原 玄, 平野 浩彦, 渡部 芳彦, 有岡 享子, 飯田 良平, 伊藤 加代子, 石田 瞭, 野原 幹司, 小坂 健, 眞木 吉信, 山根 源之

    日本摂食・嚥下リハビリテーション学会雑誌　14　(3)　476-477　2010/12

    Publisher: (一社)日本摂食嚥下リハビリテーション学会

    ISSN： 1343-8441

    eISSN： 2434-2254

  256. 東北地方における居宅介護支援事業所の歯科連携に関する調査

    伊藤 奏, 相田 潤, 若栗 真太郎, 小坂 健

    みちのく歯学会雑誌　41　(1-2)　63-64　2010/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  257. 東北地方における訪問歯科診療実態調査結果報告

    若栗 真太郎, 小坂 健

    みちのく歯学会雑誌　41　(1-2)　65-66　2010/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  258. 歯科医師の需給に関する研究 女性歯科医師数の医師・薬剤師との推移比較

    竹内 研時, 安藤 雄一, 古川 清香, 小坂 健, 児玉 知子

    日本公衆衛生学会総会抄録集　69回　195-195　2010/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  259. 介護施設における新型インフルエンザ対策に関する調査研究

    小坂 健, 竹内 研時, 相田 潤

    日本公衆衛生学会総会抄録集　69回　461-461　2010/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  260. 医療への幻想と地域包括ケアへの期待

    小坂 健

    月刊基金　51　(8)　2-4　2010/08

    Publisher: 社会保険診療報酬支払基金

  261. 居宅介護支援事業所の歯科連携に関する実態調査 歯科連携の有無に影響を及ぼす要因は何か

    伊藤 奏, 相田 潤, 若栗 真太郎, 小坂 健

    口腔衛生学会雑誌　60　(4)　369-369　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  262. 在宅療養支援歯科診療所における訪問診療の現状と課題の検討

    若栗 真太郎, 深井 穫博, 相田 潤, 小坂 健

    口腔衛生学会雑誌　60　(4)　370-370　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  263. モンテカルロ法を用いた一日あたりの食事からのフッ化物摂取量の推計

    玉原 亨, 若栗 真太郎, 相田 潤, 小坂 健

    口腔衛生学会雑誌　60　(4)　381-381　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  264. 思春期におけるフッ化物配合歯磨剤使用に関する意識調査

    野口 有紀, 若栗 真太郎, 竹内 研時, 伊藤 奏, 相田 潤, 小坂 健

    口腔衛生学会雑誌　60　(4)　449-449　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  265. 性・年齢階級別にみた歯科医師数の推移 医師・歯科医師・薬剤師調査を用いた分析

    竹内 研時, 安藤 雄一, 大内 章嗣, 古川 清香, 小坂 健

    口腔衛生学会雑誌　60　(4)　474-474　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  266. 在宅療養者における口腔内実態調査報告

    小堤 里紗, 若栗 真太郎, 相田 潤, 小坂 健

    口腔衛生学会雑誌　60　(4)　538-538　2010/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  267. Research on the satisfaction and occupational identity of dental technicians : Mainly communications between dental technicians and dentists

    HSU Hui-shan, TOMOTA Kohzo, SASAKI Keiichi, OSAKA Ken

    日本歯科技工学会雑誌　31　(1)　17-25　2010/07/20

    Publisher: (一社)日本歯科技工学会

    ISSN： 0914-7713

  268. 新型インフルエンザ対策を考える 教育機関・民間事業所の取組

    小坂 健

    宮城県公衆衛生学会会誌　(42)　25-25　2010/03

    Publisher: 宮城県公衆衛生学会

    ISSN： 0912-747X

  269. 【高齢者の口腔機能とケア】 高齢者の口腔ケアに関わる機能と病態 高齢者における咀嚼・嚥下機能の特性

    坪井 明人, 小坂 健

    Advances in Aging and Health Research　2009　45-51　2010/03

    Publisher: (公財)長寿科学振興財団

  270. マルチレベル分析による親の喫煙行動と社会環境に関する研究

    竹内研時, 相田潤, 森田学, 安藤雄一, 小坂健

    J Epidemiol　20　(Supplement 1)　S117　2010/01/09

    ISSN： 0917-5040

  271. 在宅療養者の口腔機能等の実態調査

    小坂健

    平成21年度老人保健事業推進費等補助金 (老人保健健康増進等事業分) 報告書　2010

  272. わが国のがん予防戦略の課題と展望 (特集 がん予防)

    小坂 健

    公衆衛生　73　(12)　932-936　2009/12

    Publisher: 医学書院

    ISSN： 0368-5187

  273. 【がん予防】 わが国のがん予防戦略の課題と展望

    小坂 健

    公衆衛生　73　(12)　932-936　2009/12

    Publisher: (株)医学書院

    DOI： 10.11477/mf.1401101692 　

    ISSN： 0368-5187

  274. 【カンピロバクター食中毒】 鶏肉によるカンピロバクター感染のリスク評価

    春日 文子, 花岡 頼子, 長谷川 専, 松下 知己, 山本 昭夫, 岩堀 淳一郎, 筒井 俊之, 早山 陽子, 山本 健久, 澤田 美樹子, 本山 恵子, 小坂 健

    食品衛生研究　59　(8)　15-20　2009/08

    Publisher: (公社)日本食品衛生協会

    ISSN： 0559-8974

  275. 口腔疾患の健康格差 健康格差の解消に向けて

    小坂 健

    口腔衛生学会雑誌　59　(4)　285-285　2009/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  276. 食器の共用や食物の口移しを注意すれば、う蝕は予防できるのか?

    若栗 真太郎, 相田 潤, 森田 学, 安藤 雄一, 小坂 健

    口腔衛生学会雑誌　59　(4)　313-313　2009/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  277. 歯科衛生士派遣型の介護予防プログラムのモデル事業について

    伊藤 奏, 相田 潤, 野口 有紀, 大原 里子, 北原 稔, 中川 律子, 関口 晴子, 猪野 恵美, 池山 豊子, 若栗 真太郎, 小坂 健

    口腔衛生学会雑誌　59　(4)　335-335　2009/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  278. 歯科衛生士の関わる介護予防「口腔機能の向上」プログラムの効果の検討について

    野口 有紀, 相田 潤, 若栗 真太郎, 大原 里子, 北原 稔, 中川 律子, 関口 晴子, 猪野 恵美, 池山 豊子, 小坂 健

    口腔衛生学会雑誌　59　(4)　336-336　2009/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  279. ソーシャルサポート、ネットワークを中心とした育児環境と3歳児う蝕の関連

    相田 潤, 小齋 薫, 小坂 健

    口腔衛生学会雑誌　59　(4)　459-459　2009/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  280. 【感染症 予防と治療の実際】 市町村でのパンデミックへの備えは? 市町村におけるインフルエンザ・パンデミックへの備えの現状について教えてください

    小坂 健

    Q&Aでわかる肥満と糖尿病　8　(4)　564-565　2009/07

    Publisher: (株)丹水社

    ISSN： 1347-3891

  281. Evaluating Enrollment Criteria for an Oral Functional Improvement Program and Dental Treatment Needs in the Elderly

    NOGUCHI Yuki, AIDA Jun, TANDA Naoko, ITO Emi, KANETAKA Hiroyasu, KOSEKI Takeyoshi, OSAKA Ken

    JOURNAL OF DENTAL HEALTH　59　(2)　111-117　2009/04

    Publisher: (一社)日本口腔衛生学会

    DOI： 10.5834/jdh.59.2_111 　

    ISSN： 0023-2831

  282. 障がい者施設におけるノロウイルス胃腸炎の集団発生とウイルス排泄期間の検討

    會田 小耶加, 力石 澄子, 松嵜 葉子, 青木 洋子, 須藤 亜寿佳, 水田 克巳, 小坂 健

    山形県公衆衛生学会講演集　35回　75-76　2009/03

    Publisher: 山形県公衆衛生学会

  283. 口腔ケアの実際 (特集 高齢者の口腔機能向上)

    小坂 健

    調剤と情報　15　(2)　146-149　2009/02

    Publisher: じほう

    ISSN： 1341-5212

  284. 【高齢者の口腔機能向上】 口腔ケアの実際

    小坂 健

    調剤と情報　15　(2)　146-149　2009/02

    Publisher: (株)じほう

    ISSN： 1341-5212

  285. 標準的検診法と精度管理や医療経済的効果に関する研究 標準的検診法と精度管理や医療経済効果に関する研究

    小坂健, 相田潤, 玉原亨

    標準的検診法と精度管理や医療経済的効果に関する研究 平成20年度 総括研究報告書　39-41　2009

  286. 東北大学大学院歯学研究科の地域歯科保健推進への取り組み 歯学研究科地域歯科保健推進室の果たす役割

    小関 健由, 小坂 健

    みちのく歯学会雑誌　39　(1-2)　30-30　2008/12

    Publisher: 東北地区歯科医学会

    ISSN： 0385-0099

  287. Investigations of regional differences in oral diseases

    Journal of the National Institute of Public Health　57　(2)　93-98　2008/06

    Publisher: 国立保健医療科学院

    ISSN： 1347-6459

  288. 高齢者グループホームにおける感染症とその管理の実態

    海老原 覚, 海老原 孝枝, 荒井 啓行, 小坂 健

    日本老年医学会雑誌　45　(Suppl.)　95-95　2008/05

    Publisher: (一社)日本老年医学会

    ISSN： 0300-9173

  289. 今後のわが国におけるがん検診事業評価の在り方について 報告書(案)

    石原 和子, 内田 健夫, 大内 憲明, 小坂 健, 垣添 忠生, 斎藤 博, 澁谷 いづみ, 瀬戸山 史郎, 吉田 紀子, 厚生労働省がん検診事業の評価に関する委員会

    予防医学ジャーナル　(436)　8-22　2008/04

    Publisher: (公財)予防医学事業中央会

    ISSN： 0285-0877

  290. 公衆衛生学の立場から--健康寿命と介護予防 (第2期(平成16年度〜20年度)学術フロンティア推進事業 五感を介する刺激測定に基づく健康向上のための人間環境システムの構築 平成19年度の総括) -- (東北福祉大学感性福祉研究所シンポジウム資料集 健康スケールの現状と課題)

    小坂 健

    感性福祉研究所年報　(9)　192-195　2008/03

    Publisher: 東北福祉大学感性福祉研究所

    ISSN： 1344-9966

  291. 2.自立した老後を迎えるために今できること(第50回東北大学歯学会講演抄録,歯学情報)

    小坂 健

    東北大学歯学雑誌　26　(2)　38-39　2007/12

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

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    公開講座

  292. 自立した老後を迎えるために今できること

    小坂 健

    東北大学歯学雑誌　26　(2)　38-39　2007/12

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

  293. 全国の自治体(市)のがん検診への取組みに関する研究

    相田 潤, 河原 智江, 坪野 吉孝, 小坂 健

    日本公衆衛生学会総会抄録集　66回　410-410　2007/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  294. 認知症グループホームにおける感染管理に関する研究

    小坂 健, 相田 潤, 西村 秀一

    日本公衆衛生学会総会抄録集　66回　483-483　2007/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  295. 3歳児う蝕有病者率の社会経済的状態に関連する地域格差は拡大傾向にある

    相田 潤, 森田 学, 安藤 雄一, アクター・ラヘナ, 小坂 健

    口腔衛生学会雑誌　57　(4)　361-361　2007/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  296. 通所介護施設のサービス利用者における基本チェックリスト口腔関連項目と歯科医療ニーズとの関連

    野口 有紀, 相田 潤, 丹田 奈緒子, 山田 雄大, 小川 裕平, 天野 一宇, 伊藤 恵美, 小関 健由, 小坂 健

    口腔衛生学会雑誌　57　(4)　378-378　2007/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  297. 名取市における乳幼児歯科保健事業の効果の検討

    小齋 薫, 相田 潤, 伊藤 恵子, 岡村 圭子, 渋谷 得江, 小坂 健, 小関 健由

    口腔衛生学会雑誌　57　(4)　406-406　2007/08

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  298. 通所介護施設での通所サービス利用者の歯科医療ニーズについて

    相田 潤, 野口 有紀, 丹田 奈緒子, 山田 雄大, 小川 裕平, 天野 一宇, 伊藤 恵美, 小関 健由, 小坂 健

    口腔衛生学会雑誌　57　(3)　225-225　2007/07

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  299. 名取市における3歳児のう蝕要因に関する調査結果の解析

    小齋 薫, 相田 潤, 伊藤 恵子, 岡村 圭子, 渋谷 得江, 小坂 健, 小関 健由

    口腔衛生学会雑誌　57　(3)　228-228　2007/07

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  300. 要介護高齢者の義歯装着・喫煙経験年数および薬剤の服用の関係について

    野口 有紀, 相田 潤, 丹田 奈緒子, 山田 雄大, 小川 裕平, 天野 一宇, 伊藤 恵美, 小関 健由, 小坂 健

    口腔衛生学会雑誌　57　(3)　229-229　2007/07

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  301. 東北地方の地域歯科保健推進へ向けた東北大学の取り組み 東北大学地域歯科保健推進室の設置

    小関 健由, 小坂 健, 高橋 信博, 佐々木 啓一, 高田 春比古, 菊地 正嘉, 川村 仁, 渡邉 誠, 東北大学大学院歯学研究科社会貢献委員会

    口腔衛生学会雑誌　57　(3)　229-229　2007/07

    Publisher: (一社)日本口腔衛生学会

    ISSN： 0023-2831

  302. Spatio-temporal modelling of the HIV epidemic in Japan

    Nakaya Tomoki, Nakase Katsumi, Osaka Ken

    RIMS Kokyuroku　1551　(1551)　5-10　2007/04

    Publisher: Kyoto University

    ISSN： 1880-2818

  303. A Risk Population Estimation Method for Interregional Comparison : An analysis on the influenza data reported by the surveillance system

    KATAOKA Yusuke, ASAMI Yasushi, TADA Yuki, OSAKA Ken

    Theory and applications of GIS　14　(2)　83-90　2006/12/31

    Publisher: 地理情報システム学会編集委員会

    ISSN： 1340-5381

  304. 国際歯科保健の今後 : 保健行政を通じてPublic Healthを考える(最新研究紹介,第48回東北大学歯学会講演抄録,歯学情報)

    小坂 健

    東北大学歯学雑誌　25　(1)　45-45　2006/06/30

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

  305. 介護保険制度と介護予防について

    小坂 健

    東北大学歯学雑誌　25　(1)　1-6　2006/06

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

  306. 国際歯科保健の今後 保健行政を通じてPublic Healthを考える

    小坂 健

    東北大学歯学雑誌　25　(1)　45-45　2006/06

    Publisher: 東北大学歯学会

    ISSN： 0287-3915

  307. A Risk Population Estimation Method for Interregional Comparison: An analysis on the influenza data reported by the surveillance system:An analysis on the influenza data reported by the surveillance system

    KATAOKA Yusuke, ASAMI Yasushi, TADA Yuki, OSAKA Ken

    Theory and Applications of GIS　14　(2)　83-90　2006

    Publisher: Geographic Information Systems Association

    ISSN： 1340-5381

    More details Close

    This study proposes a risk population estimation method based on the reported counts of patients of influenza in each area. A risk population estimation method is developed by regarding the sum of the weekly observations in a season following the binomial distribution, which enables estimations of population parameters and probability parameters through maximum likelihood method. The results show that the estimated infection probability is consistently correlated with population density, and the estimated population parameters in areas with high populations are obviously small in comparison with the proportion of population.

  308. 介護保険制度の展望 (特集2 介護保険制度の功罪)

    小坂 健

    精神科　7　(4)　345-351　2005/10

    Publisher: 科学評論社

    ISSN： 1347-4790

  309. 【介護保険制度の功罪】 介護保険制度の展望

    小坂 健

    精神科　7　(4)　345-351　2005/10

    Publisher: (有)科学評論社

    ISSN： 1347-4790

  310. Spatio-temporal Modelling of the HIV Epidemic in Japan

    NAKAYA Tomoki, NAKASE Katsumi, OSAKA Ken, OKABE Nobuhiko

    日本地理学会発表要旨集 = Proceedings of the General Meeting of the Association of Japanese Geographers　(67)　160-160　2005/03/10

  311. Spatio-temporal modelling of the HIV epidemic in Japan

    Nakaya Tomoki, Nakase Katsumi, Osaka Ken, Okabe Nobuhiko

    Proceedings of the General Meeting of the Association of Japanese Geographers　2005　(0)　180-180　2005

    Publisher: The Association of Japanese Geographers

    DOI： 10.14866/ajg.2005s.0.180.0 　

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    The aim of this paper is to clarify and model the geographical aspects of the HIV epidemic in Japan to examine the present and future states of geographical distribution of HIV cases and spatial relationships in HIV transmission. Although Japan has one of the lowest rates of HIV/AIDS cases among industrialized nations, the number of HIV/AIDS cases in the country has been steadily and rapidly rising. In the earlier phase of the HIV/AIDS epidemic (until around 1990), most of cases were reported from Tokyo and its surrounding prefectures. However, spatial diffusion of the epidemic is becoming apparent as the epidemic develops. We should now take note of the rising risk of HIV/AIDS in entire Japan. In this situation, the information concerning local epidemic states are necessary for supporting national and local health agencies planning preventive actions against HIV/AIDS expansion in Japan. We analyse the processes of HIV spatial diffusion based on the national HIV/AIDS surveillance, which began in 1984 but was legalized in 1989, with the aid of GIS mapping and spatial modelling.

  312. 感染症発生動向調査に基づく検討(第1報) 警報・注意報の発生状況と基準値変更の影響

    村上 義孝, 橋本 修二, 川戸 美由紀, 谷口 清洲, 小坂 健, 重松 美加, 永井 正規

    日本公衆衛生学会総会抄録集　63回　852-852　2004/10

    Publisher: 日本公衆衛生学会

    ISSN： 1347-8060

  313. 【新興・再興感染症の今】 インフルエンザ 新型インフルエンザの世界的流行は起こるか? (保健の科学)

    小坂健

    保健の科学　46　(8)　584-589　2004/08

    Publisher: 杏林書院

    ISSN： 0018-3342

  314. インフルエンザ--新型インフルエンザの世界的流行は起こるか? (特集 新興・再興感染症の今)

    小坂 健

    保健の科学　46　(8)　584-589　2004/08

    Publisher: 杏林書院

    ISSN： 0018-3342

  315. 【新興・再興感染症の今】 インフルエンザ 新型インフルエンザの世界的流行は起こるか?

    小坂 健

    保健の科学　46　(8)　584-589　2004/08

    Publisher: (株)杏林書院

    ISSN： 0018-3342

  316. 【新興再興感染症 SARSの教訓】 再興感染症と注目される感染症 サルモネラ感染症 (からだの科学)

    小坂健

    からだの科学　増刊　(新興再興感染症SARSの教訓)　192-195　2004/05

  317. 【新興再興感染症 SARSの教訓】 再興感染症と注目される感染症 サルモネラ感染症

    小坂 健

    からだの科学 増刊　増刊　(新興再興感染症SARSの教訓)　192-195　2004/05

    Publisher: (株)日本評論社

    ISSN： 0303-0334

  318. SARSウイルス感染症 (呼吸器科)

    小坂健, 岡部信彦

    呼吸器科　5　(1)　45-51　2004/01

  319. SARSウイルス感染症

    小坂 健, 岡部 信彦

    呼吸器科　5　(1)　45-51　2004/01

    Publisher: (有)科学評論社

    ISSN： 1347-0051

  320. 魚貝類及び環境におけるVibrio vulnificusの定量的な解析に関する研究 (感染症学雑誌)

    小坂健, 田村和満, 春日文子, 斉藤紀行, 尾畑浩魅, 甲斐明美, 山井志朗, 浅井良夫, 杉山寛治, 西尾智祐, 福島博, 宮坂次郎, 荒川英二, 重松美加, 岡部信彦, 山本茂貴

    感染症学雑誌　77　(10)　927-928　2003/10

    Publisher: (一社)日本感染症学会

    ISSN： 0387-5911

  321. 保育園・幼稚園における出血性大腸菌感染症に関する研究 (感染症学雑誌)

    重松美加, 小坂健, 岡部信彦

    感染症学雑誌　77　(10)　867-867　2003/10

    Publisher: (一社)日本感染症学会

    ISSN： 0387-5911

  322. SARSへの対応 (東京都病院薬剤師会雑誌)

    小坂健

    東京都病院薬剤師会雑誌　52　(5)　355-360　2003/10

  323. 保育園・幼稚園における出血性大腸菌感染症に関する研究

    重松 美加, 小坂 健, 岡部 信彦

    感染症学雑誌　77　(10)　867-867　2003/10

    Publisher: (一社)日本感染症学会

    ISSN： 0387-5911

  324. 魚貝類及び環境におけるVibrio vulnificusの定量的な解析に関する研究

    小坂 健, 田村 和満, 春日 文子, 斉藤 紀行, 尾畑 浩魅, 甲斐 明美, 山井 志朗, 浅井 良夫, 杉山 寛治, 西尾 智祐, 福島 博, 宮坂 次郎, 荒川 英二, 重松 美加, 岡部 信彦, 山本 茂貴

    感染症学雑誌　77　(10)　927-928　2003/10

    Publisher: (一社)日本感染症学会

    ISSN： 0387-5911

  325. 細菌学・ウイルス学 ビブリオ・バルニフィカス感染症 (医学のあゆみ)

    小坂健

    医学のあゆみ　206　(12)　925-926　2003/09

  326. 細菌学・ウイルス学 ビブリオ・バルニフィカス感染症

    小坂 健

    医学のあゆみ　206　(12)　925-926　2003/09

    Publisher: 医歯薬出版(株)

    ISSN： 0039-2359

  327. 【ペットを介する病気】 サルモネラ症 (小児科)

    小坂健

    小児科　44　(5)　808-812　2003/04

    Publisher: 金原出版

    ISSN： 0037-4121

  328. Salmonellosis Associated with Pet Animals

    小坂 健

    小児科　44　(5)　808-812　2003/04

    Publisher: 金原出版

    ISSN： 0037-4121

  329. ウエストナイル熱をめぐる話題

    小坂 健

    海外勤務と健康　17　24-27　2003/03

    Publisher: 労働者健康福祉機構海外勤務健康管理センター研修交流部

  330. 【感染性胃腸炎 発症病理をめぐって】 サルモネラ腸炎 (小児科診療)

    小坂健

    小児科診療　64　(7)　1013-1017　2001/07

    Publisher: 診断と治療社

    ISSN： 0386-9806

  331. サルモネラ腸炎 (特集 感染性胃腸炎--発症病理をめぐって)

    小坂 健

    小児科診療　64　(7)　1013-1017　2001/07

    Publisher: 診断と治療社

    ISSN： 0386-9806

  332. 【感染性胃腸炎 発症病理をめぐって】 サルモネラ腸炎

    小坂 健

    小児科診療　64　(7)　1013-1017　2001/07

    Publisher: (株)診断と治療社

    ISSN： 0386-9806

  333. 感染症発生動向調査に基づくインフルエンザの流行

    橋本 修二, 村上 義孝, 谷口 清州, 小坂 健, 進藤 奈邦子, 渕上 博司, 永井 正規

    日本公衆衛生雑誌　48　(6)　480-485　2001/06/15

    Publisher: 日本公衆衛生学会

    ISSN： 0546-1766

  334. 【今こそ旅行医学の確立を!】 海外保健医療情報の入手 (Modern Physician)

    小坂健

    Modern Physician　20　(11)　1325-1329　2000/11

  335. 【今こそ旅行医学の確立を!】 海外保健医療情報の入手

    小坂 健

    Modern Physician　20　(11)　1325-1329　2000/11

    Publisher: (株)新興医学出版社

    ISSN： 0913-7963

  336. 【感染症情報システム】 感染症疫学情報の収集と提供 患者発生状況 全数届け出疾患 (INFECTION CONTROL)

    小坂健

    INFECTION CONTROL　9　(11)　1198-1202　2000/10

  337. 【感染症情報システム】 感染症疫学情報の収集と提供 患者発生状況 全数届け出疾患

    小坂 健

    INFECTION CONTROL　9　(11)　1198-1202　2000/10

    Publisher: (株)メディカ出版

    ISSN： 0919-1011

  338. 【海外旅行者・赴任者への健康アドバイス】 海外の医療衛生情報の入手 (診断と治療)

    小坂健, 岡部信彦

    診断と治療　88　(8)　1244-1251　2000/08

    Publisher: 診断と治療社

    ISSN： 0370-999X

  339. 海外の医療衛生情報の入手 (特集 海外旅行者・赴任者への健康アドバイス)

    小坂 健, 岡部 信彦

    診断と治療　88　(8)　1244-1251　2000/08

    Publisher: 診断と治療社

    ISSN： 0370-999X

  340. 【海外旅行者・赴任者への健康アドバイス】 海外の医療衛生情報の入手

    小坂 健, 岡部 信彦

    診断と治療　88　(8)　1244-1251　2000/08

    Publisher: (株)診断と治療社

    ISSN： 0370-999X

  341. 感染症トピックス 旅行感染症 夏季旅行シーズンを前に (感染と抗菌薬)

    小坂健, 梅田珠実

    感染と抗菌薬　3　(2)　177-179　2000/06

  342. 【内科疾患の診断基準・病型分類・重症度】 感染症 届け出を要する感染症 (内科)

    小坂健, 井上榮

    内科　85　(6)　1427-1438　2000/06

  343. 【内科疾患の診断基準・病型分類・重症度】 感染症 届け出を要する感染症

    小坂 健, 井上 榮

    内科　85　(6)　1427-1438　2000/06

    Publisher: (株)南江堂

    ISSN： 0022-1961

  344. 感染症トピックス 旅行感染症 夏季旅行シーズンを前に

    小坂 健, 梅田 珠実

    感染と抗菌薬　3　(2)　177-179　2000/06

    Publisher: (株)ヴァンメディカル

    ISSN： 1344-0969

  345. 第12回 日本性感染症学会

    小坂 健

    臨床と微生物 = Clinical microbiology　27　(2)　213-213　2000/03/25

    ISSN： 0910-7029

  346. 環境改善によるデング感染症コントロールの試み (デング媒体蚊の新しい指標開発を目指して)

    小坂 健, Do Quang Ha

    長崎大学熱帯医学研究所共同研究報告集　12　7-8　2000

    Publisher: 長崎大学

  347. 新しい法律下での感染症の臨床の全て・セミナーと治療 感染症情報の入手のしかた (Medical Practice)

    小坂健, 井上榮

    Medical Practice　16　(11)　1843-1846　1999/11

  348. 新しい法律下での感染症の臨床の全て・セミナーと治療 感染症情報の入手のしかた

    小坂 健, 井上 榮

    Medical Practice　16　(11)　1843-1846　1999/11

    Publisher: (株)文光堂

    ISSN： 0910-1551

  349. 【輸入感染症への最初の対応】 現状の把握 輸入感染症をめぐる最近の動き (臨床と薬物治療)

    小坂健, 岡部信彦

    臨床と薬物治療　18　(1)　2-5　1999/01

  350. 【輸入感染症への最初の対応】 現状の把握 輸入感染症をめぐる最近の動き

    小坂 健, 岡部 信彦

    臨床と薬物治療　18　(1)　2-5　1999/01

    Publisher: エルゼビア・ジャパン(株)

    ISSN： 0913-7505

  351. インターネットによる感染症情報収集 (小児感染免疫)

    谷口清州, 小坂健, 松永泰子

    小児感染免疫　10　(1)　49-54　1998/04

    ISSN： 0917-4931

  352. インターネットによる感染症情報収集

    谷口 清州, 小坂 健, 松永 泰子

    小児感染免疫　10　(1)　49-54　1998/04/01

    Publisher: 日本小児感染症学会

    ISSN： 0917-4931

  353. Dental Caries and Urbanization Level in Developing Countries

    MIURA Hiroko, UMENAI Takusei, ARAI Yumiko, OSAKA Ken, ISOGAI Emiko, UEDA Itsuo

    JOURNAL OF DENTAL HEALTH　48　(1)　20-24　1998

    Publisher: Japanese Society for Oral Health

    DOI： 10.5834/jdh.48.1_20 　

    ISSN： 0023-2831

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    We investigated the association between the DMFT index at 12 years of age and urbanization in 39 developing countries. First, cluster analysis was performed to divide the 39 countries into subgroups based on their patterns of urbanization. These developing countries were then assigned to one of two groups (cluster I and cluster 2). These two clusters were characterized by three factors related to urbanization, namely, the percentage of the population aged between 15〜64 years, the population employed in the service sector, and the urban population. Next, the subgroups were compared with regard to the DMFT index at 12 years of age. The less urbanized countries of cluster 1 had a significantly lower DMFT index than the more highly urbanized countries of cluster 2 (p&lt;0.001). This finding suggests that the prevalence of dental caries is increasing rapidly in the developing countries with higher urbanization such as Korea and South Africa, and therefore, a dental caries preventive program should be developed immediately in these countries.

  354. モンゴルにおけるヨード欠乏症対策と日本の協力(第1報)

    猪狩 友行, 小坂 健, 梅内 拓生

    日本公衆衛生学会総会抄録集　55　(2)　943-943　1996/10/15

    ISSN： 1347-8060

  355. 経過中多彩な頻脈性不整脈を生じた肥大型心筋症の1例 : 日本循環器学会第145回関東甲信越地方会

    小坂 健, 斉藤 修一, 郭 宗徳, 幡野 浩一, 野崎 彰, 小出 直, 杉本 恒明

    Japanese circulation journal　58　(0)　576-577　1994/04/20

    Publisher: 社団法人日本循環器学会

    ISSN： 0047-1828

  356. Health System for Dengue Control : Early Case Detection and Focal Control

    Umenai Takusei, Nishigaki Masaru, Osaka Ken, Miura Hiroko, Ishii Katsumi

    35　(4)　297-302　1994/03/31

    Publisher: 長崎大学熱帯医学研究所

    ISSN： 0385-5643

  357. 急性心筋梗塞を合併した38歳女性の冠状動脈瘻の1例 : 日本循環器学会第142回関東甲信越地方会

    小坂 健, 北林 浩, 松岡 明子, 山口 浩一, 鈴木 順一, 小出 直, 村尾 覚

    Japanese circulation journal　57　(0)　846-847　1993/08/20

    Publisher: 社団法人日本循環器学会

    ISSN： 0047-1828

  358. 右室心尖部原発性腫瘍の1例 : 日本循環器学会第143回関東甲信越地方会

    北林 浩, 小坂 健, 松岡 明子, 山口 浩一, 鈴木 順一, 小出 直, 村尾 覚

    Japanese circulation journal　57　(0)　870-870　1993/08/20

    Publisher: 社団法人日本循環器学会

    ISSN： 0047-1828

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Books and Other Publications 6

  1. 医科歯科連携・多職種連携

    相澤, 孝夫, 赤司, 征大, 江藤, 一洋, 小坂, 健, 押村, 憲昭, 久保, 浩太郎, 小松本, 悟, 鈴木, 宏樹, 田口, 円裕, 田實, 仁, 寺中, 智, 星, 和人, 細田, 正則, 松村, 香織, 柳川, 忠廣, 米山, 武義

    医歯薬出版　2024/05

    ISBN: 9784263461792

  2. 知の統合は可能か : パンデミックに突きつけられた問い

    瀬名, 秀明, 渡辺, 政隆, 押谷, 仁, 小坂, 健

    時事通信出版局,時事通信社 (発売)　2023/03

    ISBN: 9784788718692

  3. ソーシャル・キャピタルと健康・福祉 : 実証研究の手法から政策・実践への応用まで

    近藤, 克則

    ミネルヴァ書房　2020/04

    ISBN: 9784623077748

  4. Risk Assessment of choleragenicVibrio cholerae 01 ando 139 in warm-water shirip in international trade

    Awa et al. ed

    WHO / FAO　2005/09

  5. Risk assessment of Vibrio vulnificus in raw oysters

    J.Bower, A Dalsgaard A DePapla, I Karunasagar, T, McMeekin M, Nishibuchi KenOSAKA, J, Summer M, Walderhaug ed

    WHO/FAO　2005/09

  6. 食の安全とリスクアセスメント

    山本茂樹, 熊谷進 ed, 山本茂樹, 熊谷進

    中央法規　2004/09

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Industrial Property Rights 1

  1. 歯科医院予約装置

    荒木 尊士, 豊岡 継泰, 土井 千章, 檜山 聡, 佐々木 啓一, 小坂 健, ▲高▼橋 哲, 飯久保 正弘, 日原 大貴, 泉田 一賢

    特許第7530594号

    Property Type: Patent

Research Projects 48

  1. メタボローム、レセプト等のリアルワールドデータによる口腔と心血管系疾患の解析

    小坂 健

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2025/04/01 - 2030/03/31

  2. 高齢者へのナッジ理論に基づく歯科受診喚起の介入方略と効果の検証

    野口 有紀, 尾島 俊之, 小坂 健, 藤田 美枝子, 吉田 直樹

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 静岡県立大学短期大学部

    2024/04/01 - 2028/03/31

  3. Causal inference of oral status and systemic health using multiple large cohorts and NDB, and hospital data

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tokyo Medical and Dental University

    2023/04/01 - 2027/03/31

  4. Causal inference of oral and general health using multiple large cohorts, NDB, and hospital data

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tokyo Medical and Dental University

    2023/04/01 - 2027/03/31

  5. Exploring evidence on the relationship between oral health, healthy life expectancy, and medical and long-term care cost reduction by utilizing big data

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2022/04/01 - 2027/03/31

  6. Exploring evidence on the relationship between oral health, healthy life expectancy, and medical and long-term care cost reduction by utilizing big data

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2022/04/01 - 2027/03/31

  7. Withコロナ時代における思春期「サードプレイス」実践モデルの構築

    下山田 鮎美, 小坂 健

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(C)

    Institution: 東北福祉大学

    2023/04/01 - 2026/03/31

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    コロナ禍及びその後の状況下における「思春期サードプレイス」を実現する構成要素について当事者の視点から検討するために、「思春期サードプレイス」の活動への参加者および活動の支え手として参加していた大学生にとってコロナ禍における「思春期サードプレイス」はどのような場であったのかを明らかにすることを目的とした研究を実施した。 データ収集においては、半構成的インタビューを行った。前者については、インタビューを継続中、後者についてはインタビューを終了した。 後者においては、研究参加に同意が得られた７名から得られたデータについて、逐語録を作成し、意味のあるまとまりに焦点を当てコード化・サブカテゴリ化・カテゴリ化を行った。分析の結果、68のサブカテゴリおよび8のカテゴリが見いだされた。大学生たちにとってのコロナ禍における「思春期サードプレイス」は《中高生がここに居ても大丈夫と思えるようにする》《中高生との関係性を様々な関わりを糸口として築く》《中高生が力を得ていくプロセスに伴走する》《自分自身の学びと実践を循環させる》《サードプレイスの重要性や魅力に気づく》《サードプレイスについて願い考えるようになる》《サードプレイスを自分ごととして捉える動機が高まる》《サードプレイスによって得られるものがある》という場であることが明らかとなった。 大学生たちにとってのコロナ禍における「思春期サードプレイス」は、中高生の支援を試行錯誤しながら実践し、「思春期サードプレイス」に対する気づきや考え持つようになる場であった。また、このような場を自分ごととして捉える動機を高め、自分にとって得られるものがある場としても意味づけていた。本研究の意義は、大学生による「思春期サードプレイス」での専門的実践が、中高生との「ナナメの関係」における相互作用と大学生としての欲求の充足によって促されていたことを見出した点にあるといえる。

  8. 歯科医療提供体制構築の促進に資する歯科専門職の適正配置のための研究

    福田英輝, 三浦宏子, 大島克郎, 小坂 健

    Offer Organization: 厚生労働省

    System: 厚生労働行政推進調査事業費補助金 厚生労働科学特別研究事業

    2025/04 - 2026/03

  9. International Comparison of the Effectiveness of Universal Health Coverage in Reducing Inequalities in Health Care Access

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tokyo Medical and Dental University

    2021/07/09 - 2024/03/31

  10. プレシジョンメディシンに向けた口腔と循環器疾患についての遺伝と社会要因の解明

    小坂 健, 竹内 研時, 小山 史穂子, 相田 潤

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2019/04/01 - 2024/03/31

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    口腔衛生と認知機能低下の長期的な関連を調査するための無作為化試験の実施可能性は低いが、観察データから因果関係を導き出すことは困難である。我々は，観察されない時変因子の交絡効果を排除するために，固定効果モデルを用いて，口腔状態不良と主観的認知愁訴（SCC）の関連を調査することを目的とした。2010年，2013年，2016年に実施されたJapan Gerontological Evaluation Study（JAGES）のデータを使用した。口腔状態の悪化がSCC発症に及ぼす影響について，固定効果モデルを用いてβ回帰係数と95％信頼区間[CI]を算出した。SCCの発症は、キホンチェックリスト-認知機能スコアを用いて評価した。口腔内の状態は、嚥下困難の自覚、咀嚼機能の低下、ドライマウス、歯の本数の4つの変数を用いた。結果としてベースライン時にSCCを発症していない13,594人（女性55.8%）を対象とした。平均年齢は、男性72.4歳（標準偏差[SD]、5.1）、女性72.4歳（SD、4.9）であった。6年間の追跡期間中に、男性の26.6％、女性の24.9％がSCCを発症した。SCCの発症確率は、嚥下障害（β = 0.088; 95% CI, 0.065-0.111 for men and β = 0.077; 95% CI, 0.057-0.097 for women）、咀嚼機能低下（β = 0.039; 95% CI, 0.021-0.099; 95% CI, 0.057-0.097 for women）を獲得すると著しく高くなることが明らかになった。 057（男性）、β＝0.030（95％CI、0.013-0.046）、ドライマウス（β＝0.026（95％CI、0.005-0.048）、β＝0.064（95％CI、0.045-0.083）、歯の喪失（β＝0.043（95％CI、0.001-0.085）／男性）、β＝0.058（95％CI、0.015-0.102））であった。 <BR> 結論 この結果は、将来の認知症リスクを高めるSCCの発症を予防するために、良好な口腔衛生を維持する必要があることを示唆している。

  11. Causal inference in the association between oral health and general health using big data

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    2019/04/01 - 2023/03/31

  12. Realizing Precision Medicine: Analyzing the relationship between Periodontitis and Lifestyle Related Diseases using Genetic and Social Factors

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2020/04/01 - 2022/03/31

  13. International comparative study about the difference in health impacts of social isolation among the older adults

    SAITO Masashige

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

    Institution: Nihon Fukushi University

    2018/10/09 - 2021/03/31

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    Social isolation is one of social determinants of health. We compared following points in Japan and England: 1) characteristics of social isolation among older adults, 2) association between social isolation and health behavior or mortality, and 3) population attributable fraction of social isolation. We used two large scale epidemiological ageing cohort data: Japan Gerontological Evaluation Study (JAGES) in Japan and English Longitudinal Study of Ageing (ELSA) in England. We confirmed that social isolation among older adults was significantly associated with depressive symptoms, smoking, oral health, and mortality in both countries. Since proportion of social isolation was remarkably higher in Japan, the severe social isolation among older adults was attributed to around 18,000 premature deaths annually in Japan, in contrast with around 1,800 in England. Nationwide promotion of social participation and relationships is necessary in Japan to combat social isolation among older adults.

  14. Study of oral health impact on systemic diseases considering environmental, genetic, and socioeconomic status. Competitive

    OSAKA KEN

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2019/03/31

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    We analyzed the effect of oral status on general health considering socio-economic factors using the JAGES large cohort data. We could not use the data collected through Tohoku-medical megabank. We found that the good condition of the oral cavity can prevent frail condition of older people and shorten the period of the condition needing nursing care. The low socioeconomic status of people after the earthquake leads to the loss of teeth, and the increase in medical services in dentistry when the medical co-payment exempted,the price elasticity is high. We also found the difficulty of swallowing were at high risk for the mortality due to aspirating pneumonia.

  15. The association between oral health and minor cognitive impairment (MCI): contribution of MCI prevention on dementia Competitive

    Aida Jun, KUSAMA Taro, ARIMA Misaki

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2016/04/01 - 2019/03/31

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    Determining the factors preventing minor cognitive impairment (MCI) is required. This study examined the association between oral health and MCI. In 2016, questionnaire was developed and epidemiological survey was conducted. In 2017, database was built and analysis had been started. In 2018, analysis had been continued. As the results, participants with better biting ability had significantly lower risk of MCI.

  16. Health factors among elderly people in top-class healthy life expectancy Competitive

    Noguchi Yuki, Nakai Yukie

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: University of Shizuoka,Shizuoka College

    2015/07/10 - 2019/03/31

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    Healthy life expectancy is important headline measures of the health status of the population.It showed a dramatic difference in healthy life expectancy by regions.The objective of this ｓｔuｄｙ is to examine the lifestyle and the social support on Health factors during the healthy life expectancy among elderly people.The subjects were 2,000 among elderly people living in top-class healthy life expectancy, Japan.The subjects completed the self-administered questionnaire consisting of their self-reported education, income, health status, smoking, drinking, lifestyle, health behaviors, social support.The result suggested that poor walking time and communication among neighbors could have some impact on the cognitive function decline, falling experience, depression state.

  17. Screening for individual internal exposure using teeth

    TAKAHASHI Atsushi, TANAHARA Akira, MIURA Tomisato, KOARAI Kazuma, NISHIYAMA Jyunpei, ONO Takumi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04/01 - 2019/03/31

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    The Fukushima Daiichi nuclear power plant (FDNPP) accident in March 2011 released substantial amount of radionuclides into the atmosphere. Since the amount of radionuclide in the tooth is thought to be in parallel with the amount of systemic incorporation of radionuclide into the body during the period of tooth formation, we hypothesized that we could estimate the level of internal exposure to radiation by measuring the amount of radionuclide in the teeth. The object of this study is to establish the method for screen the amount of radionuclides in the teeth using imaging plate (IP). We examined the concentration of radioactive nuclides in the teeth formed before FDNPP accident. As a result, some of the teeth showed high QL values. Such teeth were observed in the teeth collected both from Fukushima prefecture and control prefectures. Most of these teeth with high QL values were filled with composite resin. Thus, this method is suitable for the teeth with healthy IP surface.

  18. A longitudinal study of the impact of social capital on health of older people under community based integrated care system. Competitive

    Osaka Ken

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2015/04/01 - 2019/03/31

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    The health of the older people is greatly affected by the social environment, socio-economic status and social capital. We have implemented large cohort study, JAGES, involving more than 30 municipalities in Japan. In particular, Iwanuma City is the Tsunami affected area, there were data collected before and after the earthquake. We studied the impact of social capital and social environment before and after the earthquake on health and the recovery from the earthquake damage, using quasi-experimental research design. We elucidated that damage to housing due to the earthquake affected the progression of depression, PTSD, ADL decline. The community social capital would affect its prevention and improvement from the damage. This study suggested the future direction how to make a resilience of the community.

  19. Radionuclides in the teeth of animal abundant in evacuation zone of Fukushima-Daiichi Nuclear Power Plant accident.

    Shinoda Hsashii

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2014/04/01 - 2017/03/31

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    In the present study, we measured the concentration of radionuclides in the teeth of animals (cows, Japanese field mice and wild Japanese monkeys) caught in the evacuation area of the Fukushima-Daiichi Nuclear Power Plant (FNPP) accident. Sr-90, Cs-137 and Cs-134 that originate from FDNPP were detected from all the teeth examined. The concentrations exhibited a positive relationship with the degree of radioactive contamination that the animal experienced. Even within an individual animal the concentration varied depending on the developmental stage of the teeth during the FNPP accident: teeth that were early in development exhibited high concentrations, while that were late in development exhibited low concentrations. These findings demonstrate that the radionuclides are incorporated into the teeth during tooth development; thus the concentration of radionuclide in the teeth could provide useful information about internal exposure to radiation.

  20. Stantistical researches for risk management in food microbial standards under the uncertainty caused by categorical random variables

    Tsubaki Hiroe, KASUGA Fumiko, SUZUKI Tomomichi, OHNISHI Toshio, TSUTSUI Toshiyuki, HENMI Masayuki, OSAKA Ken, TANAKA Kenji, KATO Yoichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: The Institute of Statistical Mathematics

    2013/04/01 - 2016/03/31

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    We mainly studied statistical uncertainty evaluation of binary measurements and design of 3-stage sampling inspection plan based on negative binomial distribution to support the relevant international standardization activities in ISO TC 69/ SC 6 on general application of statistical methods and ICMSF for the food safety management. We also supported the relevant researches with application of our researches to food safety area.

  21. Oxytocin, social capital, and oral health related QOL Competitive

    AIDA Jun, OSAKA Ken, KONDO Katsunori, MATSUYAMA Yusuke, KOYAMA Shihoko, TAKEUCHI Kenji, HASE Akihiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2013/04/01 - 2015/03/31

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    Oxytocin is a peptide hormone. It plays an important role on social behaviors of humans. In recent years, Social capital has drawn increased attention as a key factor in relation to health, and oxytocin may be an underlying biomarker. Oral health is associated with social relationships through oral health function on conversation, eating, and facial appearance. We examined the association of oxytocin on sociality and oral health. As the results, weak associations were partially observed. Social function of oral health may be associated with improvement of sociality and oxytocin secretion volume.

  22. Effects of social determinants before- and after- the disaster on oral and general health Competitive

    AIDA Jun, OSAKA Ken, KONDO Katsunori, MATSUYAMA Yusuke, KOYAMA Shihoko, SATO Yukihiro, TAKEUCHI Kenji, ITO Kanade, HASE Akihiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2012/04/01 - 2015/03/31

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    A huge disaster causes change of social determinants of health, which damage health of victims. However, few studies examine the effect of social determinants on physical, not only mental, health after a huge disaster. Our cohort study investigated the association between disaster-related economic difficulty and health among older victims of the Great East Japan Earthquake in 2011. After considering covariates, disaster-related economic difficulty was significantly associated with tooth loss. Loss of social relationships was significantly associated with deterioration of mental health. Psychological stress caused by various social factors after disasters may affect health of victims.

  23. A cohort study on health disparities and health care costs, oral health of elderly. Competitive

    OSAKA Ken, AIDA Jun, KONDO Katsunori, MATSUYAMA Yusuke, KOYAMA Shihoko, SATO Yukihiro, ITO Kanade

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2010/04/01 - 2015/03/31

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    A prospective cohort study using the panel data of the 2006 survey and the 2010 survey of Japan gerontology assessment project (JAGES project) was performed. Analyzes the impact on society participation and oral health, people with older age, in the lower health status and socio-economic conditions are worse. We found that the number of teeth was 1.3 times more in the person with social participation. The results of prospective studies related remaining teeth and instrumental daily operation IADL in the elderly shows persons teeth more than twenty have been shown to be associated with IADL scores increased.

  24. General and oral health inequalities among older Japanese : social epidemiology using multilevel analyses. Competitive

    AIDA Jun, OSAKA Ken

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2010 - 2011

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    The erosion of social capital in more unequal societies is one mechanism for the association between income inequality and health. However, there are relatively few multi-level studies on this relation. Income inequality was significantly associated with poor dental status and marginally significantly associated with poor self-rated health. Social capital partially accounted for the association between income inequality and self-rated health but did not affect the strong association of income inequality and dental status.

  25. A novel strategy of prevention of gastric cancer recurrence-prediction of effect of chemotherapy for potential recurrence after curative operation-

    KOSAKA Takeo

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Kanazawa Medical University

    2007 - 2010

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    Multivariate analysis identified positive lymph node metastasis, low total cholesterol level, a small number of lymphocytes, positive venous invasion, and elevated serum CA19-9 level as independent prognostic factors in curatively resected gastric cancer patients. It should be considered to administer anti-cancer drugs in such cases. In addition, it may be useful to evaluate enzyme activity regarding 5-FU metabolism in predicting the effect of anticancer drugs and prognosis of gastric cancer patient.

  26. Pilot study to develop an early warning system for emerging infectious diseases in developing countries

    OSHITANI Hitoshi, SUZUKI Akira, KAMIGAKI Taro, OLVEDA Remigio M., TAYAG Enrique A., OSAKA Ken, SEKINE Masao, FURUSE Yuki, FUJI Naoko, KOUADIO Koffi Isidore, NUKIWA Nao, SAYAMA Yusuke, IMAGAWA Toshifumi, LEA NECITAS GUILLERMO Apostol, KHANDAKER Irona, FUTAKUCHI Naomi, MPOLYA Emmanuel Abraham

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2007 - 2009

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    In the 21st century, there have been newly emerging infectious diseases such as severe acute respiratory syndrome (SARS) and pandemic influenza. Compared with ordinal epidemic prone diseases, recent emerging infectious diseases pose a greater threat at a global level. Therefore it is required to develop an efficient early warning system, which is consist of strengthen of routine surveillance as well as development of new systems. In this study, we revealed that active case findings can warrant an efficient outbreak response especially among displaced population. In addition, it is important to understand the background information in the countries when introducing new methodology available in developed counties. To improve laboratory confirmation in these settings, new methodologies including genetic detection and antibody detection methods shoulde be developed.

  27. 事業名：がん検診事業の効果向上に向けた有効な手段の開発に関する研究 分担事業名：がん検診の受診率向上に向けた有効な手法の開発に関する研究 Competitive

    日本公衆衛生協会

    Offer Organization: 厚生労働省

    System: 平成18年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  28. 介護予防給付の栄養改善、口腔機能の向上の実施に関する研究 Competitive

    日本大学歯学部, 植田耕一郎

    Offer Organization: 厚生労働省

    System: 平成19年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  29. がん検診の適切な方法とその評価法の確立に関する研究 Competitive

    祖父江友孝, 濱島ちさと

    Offer Organization: 厚生労働省

    System: 厚生労働省 平成19年度がん研究助成金

  30. 口腔機能向上及び栄養改善サービスに従事する人材確保の効果的推進に関する調査研究 Competitive

    日本大学歯学部, 植田耕一郎

    Offer Organization: 厚生労働省

    System: 平成20年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  31. 誤嚥性肺炎のハイリスク者に関する研究事業 Competitive

    川口陽子

    Offer Organization: 厚生労働省

    System: 平成20年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  32. 介護予防における「口腔機能の向上」の推進に関する総合的研究 Competitive

    東北大学大学院歯学研究科

    Offer Organization: 厚生労働省

    System: 平成20年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  33. 介護サービスの質の評価の在り方に係る検討に向けた事業 Competitive

    日本公衆衛生協会

    Offer Organization: 厚生労働省

    System: 平成21年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  34. 介護予防における口腔機能向上サービスの推進に関する総合的研究事業 Competitive

    東京歯科大学市川総合病院, 歯科, 口腔外科, 渡邊裕

    Offer Organization: 厚生労働省

    System: 平成21年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  35. 介護予防の総合的評価・分析に係る研究 Competitive

    日本公衆衛生協会

    Offer Organization: 厚生労働省

    System: 平成21年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  36. がん検診の評価とあり方に関する研究 Competitive

    垣添忠生, 財団法人日本対がん協会, 会長, 国立がんセンター, 名誉総長

    Offer Organization: 厚生労働省

    System: 平成21年度厚生労働省がん研究助成金

  37. 介護予防事業の推進に関する調査研究 〔複合プログラム〕 Competitive

    日本公衆衛生協会

    Offer Organization: 厚生労働省

    System: 平成22年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  38. 居宅サービスにおける口腔関連介護サービスのあり方に関する調査研究事業 Competitive

    Offer Organization: 厚生労働省

    System: 平成23年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  39. 施設入所者に対する経口移行の提供体制のあり方に関する調査研究事業 Competitive

    Offer Organization: 厚生労働省

    System: 平成23年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  40. 介護サービスの質の評価に関する調査研究 Competitive

    三菱総合研究所

    Offer Organization: 厚生労働省

    System: 平成23年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  41. 介護予防事業の推進に関する調査研究事業〔介護予防の総合的評価・分析に関する研究〕 Competitive

    日本公衆衛生協会

    Offer Organization: 厚生労働省

    System: 平成23年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  42. Competitive

    高田和子, 国立健康, 栄養研究所栄養教育研究部栄養ケア, マネジメント研究室

    Offer Organization: 厚生労働省

    System: 平成25年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  43. 歯科保健サービスの効果実証事業 Competitive

    株式会社, 三菱総合研究所, 担当, ヒューマン・ケアグループ 柿沼

    Offer Organization: 厚生労働省

    System: 平成27年度老人保健事業推進費等補助金（老人保健健康増進等事業分）

  44. 急増する都市部の高齢者のフレイル予防・介護予防につながる社会環境・保健行動の研究. Competitive

    相田潤

    Offer Organization: 厚生労働省

    System: 長寿科学研究者支援事業

  45. 「地域包括ケアシステム」による災害対応体制の構築 Competitive

    小坂健

    Offer Organization: 厚生労働省

    System: 平成28年度老人保健健康増進等事業(老人保健事業推進費等補助金)

  46. 介護予防・日常生活支援総合事業における口腔機能・栄養・運動複合型プログラムを用いた住民参加型介護予防活動に関する調査研究事業 Competitive

    福泉隆喜

    Offer Organization: 厚生労働省

    System: 平成28年度老人保健健康増進等事業(老人保健事業推進費等補助金)

  47. フィリピンでの新興・再興感染症研究拠点形成のための予備調査 Competitive

    押谷仁

    Offer Organization: 文部科学省

    System: 文部科学省

  48. 歯を用いた被ばく量・被ばく歴の解析 Competitive

    篠田壽

    Offer Organization: 文部科学省

    System: 基盤研究（C）

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  1. 小規模な高齢者介護施設等における感染管理に関する研究

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    小規模な高齢者介護施設等における感染管理に関する研究