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International comparative study about the difference in health impacts of social isolation among the older adults

Research Project

Project/Area Number 18KK0057
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 8:Sociology and related fields
Research InstitutionNihon Fukushi University

Principal Investigator

SAITO Masashige  日本福祉大学, 社会福祉学部, 准教授 (70548768)

Co-Investigator(Kenkyū-buntansha) 池田 登顕  山形大学, 医学部, 助教 (20804917)
小山 史穂子  地方独立行政法人大阪府立病院機構大阪国際がんセンター(研究所), その他部局等, 疫学統計部主査 (40779542)
小坂 健  東北大学, 歯学研究科, 教授 (60300935)
宮國 康弘  国立研究開発法人国立長寿医療研究センター, 老年学・社会科学研究センター, 研究員 (90734195)
辻 大士  千葉大学, 予防医学センター, 特任助教 (90741976)
相田 潤  東北大学, 歯学研究科, 准教授 (80463777)
野口 泰司  国立研究開発法人国立長寿医療研究センター, 老年学・社会科学研究センター, 研究員 (40844981)
Project Period (FY) 2018-10-09 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2018: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords社会的孤立 / 高齢者 / 健康影響 / 社会環境要因 / 日英比較
Outline of Final Research Achievements

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.

Academic Significance and Societal Importance of the Research Achievements

英国政府では社会的孤立や孤独による国の経済的損失が年間320億ポンド(約4.9兆円)に上ると推計している。日英で孤立しがちな高齢者の特性には相違はないが、日本社会は孤立しがちな高齢者が顕著に多いこと、孤立状態による早期死亡のインパクトは英国よりも大きく、社会的孤立対策の推進が必要であることなどが示唆された。本研究を通じて、8本(うち、査読付の国際誌6本)の論文を発表することができた。日英の大規模コホートデータの比較研究の基盤を整備し、研究成果を発信できたことの学術的意義も大きいと思われる。今後、英国の動向を見つつ、さらなる研究を進め、社会的孤立の予防・軽減にむけた社会環境要因の探求を図りたい。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019 2018

All Journal Article (8 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (5 results)

  • [Journal Article] Association Between Social Isolation and Smoking in Japan and England2021

    • Author(s)
      Ikeda T, Cable N, Saito M, Koyama S, Tsuji T, Noguchi T, Kondo K, Osaka K, Aida J.
    • Journal Title

      Journal of Epidemiology

      Volume: 31 Issue: 10 Pages: 523-529

    • DOI

      10.2188/jea.JE20200138

    • NAID

      130008101393

    • ISSN
      0917-5040, 1349-9092
    • Year and Date
      2021-10-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Examining the associations between oral health and social isolation: A cross-national comparative study between Japan and England2021

    • Author(s)
      Koyama Shihoko, Saito Masashige, Cable Noriko, Ikeda Takaaki Ikeda, Tsuji Taishi, Noguchi Taiji, Abbas Hazem, Miyashiro Isao, Osaka Ken, Kondo Katsunori, Richard G Watt, Aida Jun
    • Journal Title

      Social Science & Medicine

      Volume: 227 Pages: 113895-113895

    • DOI

      10.1016/j.socscimed.2021.113895

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Association between social isolation and depression onset among older adults: a cross-national longitudinal study in England and Japan2021

    • Author(s)
      Noguchi Taiji、Saito Masashige、Aida Jun、Cable Noriko、Tsuji Taishi、Koyama Shihoko、Ikeda Takaaki、Osaka Ken、Kondo Katsunori
    • Journal Title

      BMJ Open

      Volume: 11 Issue: 3 Pages: 1-9

    • DOI

      10.1136/bmjopen-2020-045834

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 社会的孤立の国際比較2021

    • Author(s)
      斉藤雅茂
    • Journal Title

      精神科

      Volume: 印刷中

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Cross‐national comparison of social isolation and mortality among older adults: A 10‐year follow‐up study in Japan and England2020

    • Author(s)
      Saito Masashige、Aida Jun、Cable Noriko、Zaninotto Paola、Ikeda Takaaki、Tsuji Taishi、Koyama Shihoko、Noguchi Taiji、Osaka Ken、Kondo Katsunori
    • Journal Title

      Geriatrics & Gerontology International

      Volume: 21 Issue: 2 Pages: 209-214

    • DOI

      10.1111/ggi.14118

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Change in the prevalence of social isolation among the older population from 2010 to 2016: A repeated cross-sectional comparative study of Japan and England2020

    • Author(s)
      Tsuji Taishi、Saito Masashige、Ikeda Takaaki、Aida Jun、Cable Noriko、Koyama Shihoko、Noguchi Taiji、Osaka Ken、Kondo Katsunori
    • Journal Title

      Archives of Gerontology and Geriatrics

      Volume: 91 Pages: 104237-104237

    • DOI

      10.1016/j.archger.2020.104237

    • NAID

      120007188746

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Validation study on a Japanese version of 3-item UCLA loneliness scale among community-dwelling older adults2019

    • Author(s)
      Saito Tami, Cable Noriko, Aida Jun, Shirai Kokoro, Saito Masashige, Kondo Katsunori
    • Journal Title

      Geriatrics and Gerontology International

      Volume: 19(10) Issue: 10 Pages: 1068-1069

    • DOI

      10.1111/ggi.13758

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 〔特集:中高齢者の貧困・社会的孤立〕日本の高齢者における相対的剥奪の測定と健康影響2019

    • Author(s)
      斉藤雅茂
    • Journal Title

      貧困研究

      Volume: 23 Pages: 37-45

    • Related Report
      2019 Research-status Report
  • [Presentation] 高齢者の社会的孤立の経年推移: 6年間の日英比較研究2020

    • Author(s)
      辻大士・斉藤雅茂 ・池田登顕 ・相田潤・Noriko Cable・小山史穂子 ・野口泰司・小坂健・近藤克則
    • Organizer
      第30回日本疫学会学術総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 社会的孤立・社会参加の実態と関連要因2020

    • Author(s)
      斉藤雅茂
    • Organizer
      第9回日本認知症予防学会学術集会(シンポジウム:社会的孤立と社会参加)
    • Related Report
      2019 Research-status Report
  • [Presentation] 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:JAGES2019

    • Author(s)
      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
    • Organizer
      第78回日本公衆衛生学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 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2019

    • Author(s)
      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
    • Organizer
      第61回日本老年社会科学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 世界に貢献できる日本の地域包括ケアの取り組み(高齢化する世界;日本から国際発信と世界からの学び)2018

    • Author(s)
      斉藤雅茂
    • Organizer
      第77回日本公衆衛生学会総会
    • Related Report
      2018 Research-status Report

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Published: 2018-10-12   Modified: 2022-01-27  

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