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Causal inference in the association between oral health and general health using big data

Research Project

Project/Area Number 19H03860
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 57080:Social dentistry-related
Research InstitutionTokyo Medical and Dental University (2020-2022)
Tohoku University (2019)

Principal Investigator

Aida Jun  東京医科歯科大学, 大学院医歯学総合研究科, 教授 (80463777)

Co-Investigator(Kenkyū-buntansha) 花里 真道  千葉大学, 予防医学センター, 准教授 (00608656)
山本 龍生  神奈川歯科大学, 歯学部, 教授 (20252984)
近藤 克則  千葉大学, 予防医学センター, 教授 (20298558)
小坂 健  東北大学, 歯学研究科, 教授 (60300935)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Keywords口腔と全身の健康 / 固定効果分析 / 媒介分析 / 集団寄与危険割合 / 認知症 / 死亡 / コホート研究 / 因果推論 / 口腔と全身 / 高齢者 / 口腔の健康 / 孤食 / 社会的孤立 / うつ病 / 歯 / 口腔 / 疫学 / 歯科保健 / ビッグデータ
Outline of Research at the Start

口腔と全身の健康のRCTには様々な限界が存在することが指摘されており、RCTと異なる現実社会の一般化しやすいデータ(Real world data)でのエビデンスの構築の重要性が認識されている。そこで本研究では大規模疫学調査によるデータや、地理情報などのデータを含む、多面的なビッグデータを利用し、口腔から全身の健康への因果効果は存在するのかの検証を行う。

Outline of Final Research Achievements

In recent years, there has been an increased focus on causal inference using observational data, as it has been recognized that randomized controlled trials (RCTs) sometimes cannot be conducted. In this study, we used a variety of techniques on observational data to examine the relationship between oral and systemic health. A study of denture cleaning frequency and pneumonia risk, a study of oral health and cognitive decline, studies of oral health and social activity and isolation, a study showing that oral functions such as speaking and eating exist as mechanisms by which poor oral health increases the risk of depression, a study showing the same with dementia, a study showing that oral health contributes more than other risks studies showing that oral health contributes more than other risks to mortality, a study of prosthetic treatment and weight loss, a study of oral function and dysfunction, and a study of oral health and happiness have been conducted and published.

Academic Significance and Societal Importance of the Research Achievements

本研究は様々な観点から分析を行い、口腔と全身の健康に関して多角的な視点からの検証を行った。手法的には、固定効果分析を用いることで未測定の要因であっても時間で不変の要因であれば影響を取り除く解析を行ったり、媒介分析で口腔と全身の間にあるメカニズムについて検討をした。理論的には、これまで口腔内細菌や歯周病による慢性炎症などの生物化学的な要因が口腔と全身の健康の間のメカニズムと考えられていたが、口腔のもつ会話や食事といった基本的な機能が、口腔と全身の健康の間に存在することを考慮し、研究を発展させた。このように手法と理論両面から、口腔と全身の国際的な研究をもけん引する研究が行えたと考えている。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (25 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (19 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 17 results,  Open Access: 7 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Int'l Joint Research] University College London(英国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Association of Stressful Life Events With Oral Health Among Japanese Workers2024

    • Author(s)
      Aoki Jin、Zaitsu Takashi、Ohshiro Akiko、Aida Jun
    • Journal Title

      Journal of Epidemiology

      Volume: 34 Issue: 1 Pages: 16-22

    • DOI

      10.2188/jea.JE20220225

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2024-01-05
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oral status and incident functional disability: A 9-year prospective cohort study from the JAGES2023

    • Author(s)
      Yamamoto-Kuramoto Kinumi、Kiuchi Sakura、Takeuchi Kenji、Kusama Taro、Nakazawa Noriko、Tamada Yudai、Aida Jun、Kondo Katsunori、Osaka Ken
    • Journal Title

      Archives of Gerontology and Geriatrics

      Volume: 111 Pages: 105009-105009

    • DOI

      10.1016/j.archger.2023.105009

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Education‐related inequalities in oral health among older adults: Comparing Singapore and Japan2023

    • Author(s)
      Kiuchi Sakura、Aida Jun、Cooray Upul、Osaka Ken、Chan Angelique、Malhotra Rahul、Peres Marco A.
    • Journal Title

      Community Dentistry and Oral Epidemiology

      Volume: - Issue: 4 Pages: 671-679

    • DOI

      10.1111/cdoe.12846

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Longitudinal Association Between Oral Status and Cognitive Decline Using Fixed-effects Analysis2022

    • Author(s)
      Kiuchi Sakura、Kusama Taro、Sugiyama Kemmyo、Yamamoto Takafumi、Cooray Upul、Yamamoto Tatsuo、Kondo Katsunori、Osaka Ken、Aida Jun
    • Journal Title

      Journal of Epidemiology

      Volume: 32 Issue: 7 Pages: 330-336

    • DOI

      10.2188/jea.JE20200476

    • NAID

      130007977680

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2022-07-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Weight Loss Mediated the Relationship between Tooth Loss and Mortality Risk2022

    • Author(s)
      Kusama T.、Takeuchi K.、Kiuchi S.、Aida J.、Kondo K.、Osaka K.
    • Journal Title

      Journal of Dental Research

      Volume: 102 Issue: 1 Pages: 45-52

    • DOI

      10.1177/00220345221120642

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Association among the number of teeth, dental prosthesis use, and subjective happiness: A cross-sectional study from the Japan Gerontological Evaluation study (JAGES)2022

    • Author(s)
      Abbas Hazem、Aida Jun、Kondo Katsunori、Osaka Ken
    • Journal Title

      The Journal of Prosthetic Dentistry

      Volume: - Issue: 5 Pages: 871-877

    • DOI

      10.1016/j.prosdent.2022.02.014

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Large contribution of oral status for death among modifiable risk factors in older adults: the JAGES prospective cohort study2022

    • Author(s)
      Nakazawa Noriko、Kusama Taro、Cooray Upul、Yamamoto Takafumi、Kiuchi Sakura、Abbas Hazem、Yamamoto Tatsuo、Kondo Katsunori、Osaka Ken、Aida Jun
    • Journal Title

      The Journals of Gerontology: Series A

      Volume: - Issue: 1 Pages: 167-173

    • DOI

      10.1093/gerona/glac052

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Association of poor dental status with eating alone: A cross-sectional Japan gerontological evaluation study among independent older adults2022

    • Author(s)
      Kinugawa Anna、Kusama Taro、Yamamoto Takafumi、Kiuchi Sakura、Nakazawa Noriko、Kondo Katsunori、Osaka Ken、Aida Jun
    • Journal Title

      Appetite

      Volume: 168 Pages: 105732-105732

    • DOI

      10.1016/j.appet.2021.105732

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Does remaining teeth and dental prosthesis associate with social isolation? A six‐year longitudinal study from the Japan Gerontological Evaluation Study (JAGES)2022

    • Author(s)
      Abbas Hazem、Aida Jun、Cooray Upul、Ikeda Takaaki、Koyama Shihoko、Kondo Katsunori、Osaka Ken
    • Journal Title

      Community Dentistry and Oral Epidemiology

      Volume: - Issue: 2 Pages: 345-354

    • DOI

      10.1111/cdoe.12746

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Dental prosthetic treatment reduced the risk of weight loss among older adults with tooth loss2021

    • Author(s)
      Kusama Taro、Nakazawa Noriko、Kiuchi Sakura、Kondo Katsunori、Osaka Ken、Aida Jun
    • Journal Title

      Journal of the American Geriatrics Society

      Volume: 69 Issue: 9 Pages: 2498-2506

    • DOI

      10.1111/jgs.17279

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 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 analysis2021

    • Author(s)
      Kusama Taro、Kiuchi Sakura、Umehara Noriko、Kondo Katsunori、Osaka Ken、Aida Jun
    • Journal Title

      Journal of Affective Disorders

      Volume: 286 Pages: 174-179

    • DOI

      10.1016/j.jad.2021.02.071

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oral Status and Dementia Onset: Mediation of Nutritional and Social Factors2021

    • Author(s)
      Kiuchi S.、Cooray U.、Kusama T.、Yamamoto T.、Abbas H.、Nakazawa N.、Kondo K.、Osaka K.、Aida J.
    • Journal Title

      Journal of Dental Research

      Volume: 101 Issue: 4 Pages: 420-427

    • DOI

      10.1177/00220345211049399

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Associations between vision, hearing and tooth loss and social interactions: the JAGES cross-sectional study2020

    • Author(s)
      Igarashi A, Aida J, Yamamoto T, Hiratsuka Y, Kondo K, Osaka K.
    • Journal Title

      Journal of Epidemiology and Community Health

      Volume: 75 Issue: 2 Pages: 171-176

    • DOI

      10.1136/jech-2020-214545

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wider Dental Care Coverage Associated with Lower Oral Health Inequalities: A Comparison Study between Japan and England2020

    • Author(s)
      Ito Kanade、Cable Noriko、Yamamoto Tatsuo、Suzuki Kayo、Kondo Katsunori、Osaka Ken、Tsakos Georgios、Watt Richard G.、Aida Jun
    • Journal Title

      International Journal of Environmental Research and Public Health

      Volume: 17 Issue: 15 Pages: 5539-5539

    • DOI

      10.3390/ijerph17155539

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Does second-hand smoke associate with tooth loss among older Japanese? JAGES cross-sectional study2020

    • Author(s)
      Umemori Sachi、Aida Jun、Tsuboya Toru、Tabuchi Takahiro、Tonami Ken-ichi、Nitta Hiroshi、Araki Kouji、Kondo Katsunori
    • Journal Title

      International Dental Journal

      Volume: 70 Issue: 5 Pages: 388-395

    • DOI

      10.1111/idj.12577

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between visual status and social participation in older Japanese: The JAGES cross-sectional study2020

    • Author(s)
      Yoshida Yuto、Hiratsuka Yoshimune、Kawachi Ichiro、Murakami Akira、Kondo Katsunori、Aida Jun
    • Journal Title

      Social Science & Medicine

      Volume: 253 Pages: 112959-112959

    • DOI

      10.1016/j.socscimed.2020.112959

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 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 Project2020

    • Author(s)
      Hoshi Manami、Aida Jun、Kusama Taro、Yamamoto Takafumi、Kiuchi Sakura、Yamamoto Tatsuo、Ojima Toshiyuki、Kondo Katsunori、Osaka Ken
    • Journal Title

      International Journal of Environmental Research and Public Health

      Volume: 17 Issue: 6 Pages: 2052-2052

    • DOI

      10.3390/ijerph17062052

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Does public transportation reduce inequalities in access to dental care among older adults? Japan Gerontological Evaluation Study2019

    • Author(s)
      Kiuchi Sakura、Aida Jun、Kusama Taro、Yamamoto Takafumi、Hoshi Manami、Yamamoto Tatsuo、Kondo Katsunori、Osaka Ken
    • Journal Title

      Community Dentistry and Oral Epidemiology

      Volume: 48 Issue: 2 Pages: 109-118

    • DOI

      10.1111/cdoe.12508

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Infrequent Denture Cleaning Increased the Risk of Pneumonia among Community-dwelling Older Adults: A Population-based Cross-sectional Study2019

    • Author(s)
      Kusama Taro、Aida Jun、Yamamoto Tatsuo、Kondo Katsunori、Osaka Ken
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 13734-13734

    • DOI

      10.1038/s41598-019-50129-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 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2022

    • Author(s)
      草間 太郎, 竹内 研時, 木内 桜, 相田 潤, 近藤 克則, 小坂 健
    • Organizer
      日本口腔衛生学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 自立高齢者の口腔ケアと肺炎経験の関連 機械学習(TMLE)を用いた分析2022

    • Author(s)
      井上 裕子, 財津 崇, 大城 暁子, 木野 志保, 石丸 美穂
    • Organizer
      日本公衆衛生学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Epidemiology of oral health on nutrition and food intake2022

    • Author(s)
      Jun Aida
    • Organizer
      22nd IUNS-ICN International Congress of Nutrition
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高齢者の現在歯数や義歯の使用と対面で人に会う頻度の 関連2021

    • Author(s)
      湯川響、財津崇、大城暁子、相田潤
    • Organizer
      第80回日本公衆衛生学会総会
    • Related Report
      2021 Annual Research Report
  • [Book] Aida J: Tooth Loss. In: Oral Epidemiology A Textbook on Oral Health Conditions, Research Topics and Methods. edn. Edited by Peres M, Antunes F, Watt R.2020

    • Author(s)
      Jun Aida
    • Publisher
      Springer International Publishing
    • ISBN
      3030501221
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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