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The impact of poly-physician on elderly people with multimorbidity.

Research Project

Project/Area Number 21K10356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58010:Medical management and medical sociology-related
Research InstitutionKeio University

Principal Investigator

ANDO TAKAYUKI  慶應義塾大学, 医学部(信濃町), 助教 (30850705)

Co-Investigator(Kenkyū-buntansha) 新井 康通  慶應義塾大学, 医学部(信濃町), 講師 (20255467)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords多疾患併存 / ケアの分断 / ポリドクター / ポリファーマシー / 高齢者の潜在的不適切処方 / 医療費 / 主観的健康観 / 人生満足度 / 多併存疾患 / 高齢者
Outline of Research at the Start

本研究課題では、川崎市と慶應義塾大学が合同で行っている85-89歳の介護を要しない1000名の高齢者のコホート研究(川崎ウェルビーイング研究)に参加して、多併存疾患が高齢者の生活機能に影響していく過程を前向きに明らかにする。参加者の診察、測定データと医療レセプト情報を組み合わせた多角的な解析を行い、日常生活機能低下および新規要介護申請を主要アウトカムとして、多併存疾患、ポリファーマシー、ポリドクターがどのような影響を与えているかを患者QOLおよび医療経済学的視点から明らかにする。

Outline of Final Research Achievements

The term "multimorbidity" refers to a state in which a single patient suffers from multiple chronic conditions. It has become a problem in our country as it faces an aging society. This study demonstrated that multimorbidity is also associated with the patient's subjective health. Moreover, the management of patients with multimorbidity is problematic due to the involvement of multiple physicians, a situation referred to as "polydoctoring." This research developed the definition and measurement methods of polydoctoring, showing its association with an increase in polypharmacy and healthcare costs. Additionally, the study exploratively investigated the relationship between polydoctoring and patient health outcomes, indicating that the association between mortality and polydoctoring could be influenced by the number of coexisting conditions.

Academic Significance and Societal Importance of the Research Achievements

本研究では医療レセプトデータから定期的に通院する医療機関数を計算する方法を確立し、Regularly Visited Facilitiy(RVF)というポリドクターの尺度を開発した。このRVFを用いることで、ポリドクターと健康アウトカムの関連を調査することが可能になった。実際にRVFが高くなると、ポリファーマシーの発生が増え、外来医療費も増加する傾向にあることがしめされた。また、ポリドクターが多疾患併存を抱える超高齢患者の死亡率とどのように関連しているかを明らかにすることで、外来において専門医への紹介を積極的にすべきか、包括的にかかりつけ医が診療すべきかという問いに対する答えを探索している。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (7 results)

All 2023 2022

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 3 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Measurement of polydoctoring as a crucial component of fragmentation of care among patients with multimorbidity: Cross‐sectional study in Japan2023

    • Author(s)
      Ando Takayuki、Sasaki Takashi、Abe Yukiko、Nishimoto Yoshinori、Hirata Takumi、Haruta Junji、Arai Yasumichi
    • Journal Title

      Journal of General and Family Medicine

      Volume: 24 Issue: 6 Pages: 343-349

    • DOI

      10.1002/jgf2.651

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association of Care Fragmentation with Polypharmacy and Inappropriate Medication Among Older Adults with Multimorbidity2023

    • Author(s)
      Ando Takayuki、abe yukiko、Arai Yasumichi、Sasaki Takashi、Fujishima Seitaro
    • Journal Title

      Annals of Family Medicine

      Volume: 21 Pages: 3570-3570

    • DOI

      10.1370/afm.21.s1.3570

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Disparities in co-payments for influenza vaccine among the elderly, during the COVID-19 pandemic in Japan2022

    • Author(s)
      Ando Takayuki、Maruyama Tomoki、Tamai Aki、Murakami Taro、Kido Yasuaki、Ishida Toru、Taya Hajime、Haruta Junji、Sugiyama Daisuke、Fujishima Seitaro
    • Journal Title

      Journal of Infection and Chemotherapy

      Volume: 28 Issue: 7 Pages: 896-901

    • DOI

      10.1016/j.jiac.2022.03.011

    • Related Report
      2022 Research-status Report
  • [Journal Article] Association between multimorbidity, self-rated health and life satisfaction among independent, community-dwelling very old persons in Japan: longitudinal cohort analysis from the Kawasaki Ageing and Well-being Project2022

    • Author(s)
      Ando Takayuki、Nishimoto Yoshinori、Hirata Takumi、Abe Yukiko、Takayama Midori、Maeno Takashi、Fujishima Seitaro、Takebayashi Toru、Arai Yasumichi
    • Journal Title

      BMJ Open

      Volume: 12 Issue: 2 Pages: e049262-e049262

    • DOI

      10.1136/bmjopen-2021-049262

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ケアの分断が自立した超高齢者の総死亡率や処方、医療費に及ぼす影響2023

    • Author(s)
      安藤 崇之, 佐々木貴史, 阿部由紀子, 新井 康通.
    • Organizer
      第14回日本プライマリ・ケア連合学学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Identification of Chronic Conditions Associated with Fragmentation of Care in the Very Old Population in Japan.2023

    • Author(s)
      Ando T, Sasaki T, Abe Y, Arai Y.
    • Organizer
      NAPCRG annual meeting.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Association of Care Fragmentation with Polypharmacy and Inappropriate Medication Among Older Adults with Multimorbidity2022

    • Author(s)
      Takayuki Ando, yukiko abe, Yasumichi Arai, Takashi Sasaki and Seitaro Fujishima
    • Organizer
      North America Primary Care Research Group
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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