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A longitudinal study for the effectiveness of having specific health checkups on subsequent medical care expenditure reductions

Research Project

Project/Area Number 20K10502
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionKochi University

Principal Investigator

Yasuda Nobufumi  高知大学, 教育研究部医療学系連携医学部門, 教授 (30240899)

Co-Investigator(Kenkyū-buntansha) 宮野 伊知郎  高知大学, 教育研究部医療学系連携医学部門, 准教授 (00437740)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords特定健康診査 / 医療費低廉効果 / 縦断研究 / 国民健康保険 / 後期高齢者の健康診査 / 医療費
Outline of Research at the Start

特定健康診査(特定健診)受診の効果が及ぶ期間を1年間と仮定し、特定健診受診とその後の医療給付との紐付けを、関連の因果性が満たされるものにする縦断研究を行い、特定健診受診の医療費低廉効果についての根拠を整備する。本研究独自の工夫は次の二つである。1)時間経過に合わせ、特定健診受診の有無、健診受診に紐付けされる医療の給付期間、そして交絡因子(年齢)を変化させる。2)医療費を特定健診標的疾患に給付されたものに限定する。これらの工夫を施し、任意の年齢区間における特定健診受診パターンの間で、一人月あたりの医療費を比較できるようにして、特定健診受診の医療費低廉効果を吟味する。

Outline of Final Research Achievements

A longitudinal study examined the association between the frequency of having specific health checkups and subsequent medical care expenditures under the assumption that the effective duration of having a checkup is up to 12 months. The study materials during consecutive two or more years before the COVID-19 pandemic were obtained in two municipal national health insurances(N=2,801).
The expenditures of having checkups infrequently were higher than those of having checkups regularly, especially when medical care expenditures were restricted to those for lifestyle-related diseases. A major concern about this finding is a reverse causation: persons who skip checkups might do so because they have prevalent medical conditions. Further studies should explore effects of having irregular checkups on subsequent medical care expenditures.

Academic Significance and Societal Importance of the Research Achievements

健診受診の医療費適正化効果は、健診を定期受診する場合に限られ、健診の不定期受診には効果がないことが示唆された。ただし、医療による管理を受けている生活習慣病を持つ者が健診を不定期にしか受診しないという、因果の逆転によって生じた結果とも考えられる。この問題に対処するために、健診受診時に治療中の生活習慣病を有する者を除いた上で、健診受診頻度別に医療給付の状況を観察する縦断研究が必要である。しかし、健診受診者での生活習慣病の有病率は高いので、規模が小さな集団では十分な人数の解析適格者が得られない。複数の地域が参加する大規模な縦断研究として実施する必要がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (5 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results)

  • [Journal Article] Long-term Response of <i>Helicobacter pylori</i> Antibody Titer After Eradication Treatment in Middle-aged Japanese: JPHC-NEXT Study2023

    • Author(s)
      Tanaka Shiori、Goto Atsushi、Yamagishi Kazumasa、Iwasaki Motoki、Yamaji Taiki、Shimazu Taichi、Iso Hiroyasu、Muraki Isao、Yasuda Nobufumi、Saito Isao、Kato Tadahiro、Aoyagi Kiyoshi、Arima Kazuhiko、Sakata Kiyomi、Tanno Kozo、Inoue Manami、Sawada Norie、Tsugane Shoichiro
    • Journal Title

      Journal of Epidemiology

      Volume: 33 Issue: 1 Pages: 1-7

    • DOI

      10.2188/jea.JE20200618

    • NAID

      130008030869

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2023-01-05
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association Between Birth Weight and Risk of Pregnancy-Induced Hypertension and Gestational Diabetes in Japanese Women: JPHC-NEXT Study2022

    • Author(s)
      Ogawa K, Morisaki N, Piedvache P, Nagata C, Sago H, Urayama KY, Arima K, Nishimura T, Sakata K, Tanno K, Yamagishi K, Iso H, Yasuda N, Kato T, Saito I, Goto A, Shimazu T, Yamaji T, Iwasaki M, Inoue M, Sawada N, and Tsugane S
    • Journal Title

      Journal of Epidemiology

      Volume: 32 Issue: 4 Pages: 168-173

    • DOI

      10.2188/jea.JE20200302

    • NAID

      130008024174

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2022-04-05
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association Between Physical Activity and Risk of Disabling Dementia in Japan2022

    • Author(s)
      Ihira H, Sawada N, Inoue M, Yasuda N, Yamagishi K, Charvat H, Iwasaki M, Tsugane S
    • Journal Title

      JAMA Network Open

      Volume: 5 Issue: 3 Pages: e224590-e224590

    • DOI

      10.1001/jamanetworkopen.2022.4590

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between unhealthy sleep status and dry eye symptoms in a Japanese population: The JPHC-NEXT study2021

    • Author(s)
      Hanyuda A, Sawada N, Uchino M, Kawashima M, Yuki K, Tsubota K, Tanno K, Sakata K, Yamagishi K, Iso H, Yasuda N, Saito I, Kato T, Abe Y, Arima K, Shimazu T, Yamaji T, Goto A, Inoue M, Iwasaki M, Tsugane S
    • Journal Title

      The Ocular Surface

      Volume: 21 Pages: 306-312

    • DOI

      10.1016/j.jtos.2021.04.001

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relation Between Body Mass Index and Dry Eye Disease: The Japan Public Health Center-Based Prospective Study for the Next Generation2021

    • Author(s)
      Yamanishi R, Sawada N, Hanyuda A, Uchino M, Kawashima M, Yuki K, Tsubota K, Kato T, Saito I, Arima K, Mizukami S, Tanno K, Sakata K, Yamagishi K, Iso H, Yasuda N, Shimazu T, Yamaji T, Goto A, Inoue M, Iwasaki M, Tsugane S
    • Journal Title

      Eye & Contact Lens

      Volume: 47 Issue: 8 Pages: 449-455

    • DOI

      10.1097/icl.0000000000000814

    • Related Report
      2021 Research-status Report
    • Peer Reviewed

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Published: 2020-04-28   Modified: 2024-01-30  

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