Change in mental function and its correlates among the oldest-old adults living in a Japanese community

• Project/Area Number: 19790438
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Public health/Health science
• Research Institution: Tokyo Metropolitan Institute of Gerontology
• Principal Investigator: IWASA Hajime Tokyo Metropolitan Institute of Gerontology, 東京都老人総合研究所, 主任研究員 (60435716)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,690,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
• Keywords: 超高齢者 / 精神機能 / 経年変化 / 認知機能 / 心理的幸福感 / サクセスフル・エイジング

Research Abstract

2002年に実施した、超高齢者を対象とした訪問調査から5年後の追跡調査を行い、(1)精神機能の経年変化の実態把握、(2)精神機能の経年変化の予測因子の探索、(3)生命予後と精神機能の関連、について検討した。 検討の結果以下が示された。(1)超高齢期においては、身体機能と比較して精神機能の低下は緩やかである可能性が示唆された。(2)体力、心理的幸福感が高い者ほど認知機能が維持されやすいこと、生活習慣病の罹患が無い者ほど心理的幸福感が維持されやすいことが示された。(3)認知機能が高い者ほど、生命予後が良好であることが示された。 本知見より、超高齢期におけるサクセスフル・エイジングを達成するためには、身体機能だけでなく精神機能の維持が重要であることが示唆された。

Research Products

• [Journal Article] Personality and participation in mass health checkups among Japanese community-dwelling elderly (2009)
  • Author(s): Iwasa H, Masui Y, Gondo Y, Yoshida Y, Inagaki H, Kawaai C, Kim H, Yoshida H, Suzuki T
  • Journal Title: Journal of Psychosomatic Research 2009 66 Pages: 155-159
  • Peer Reviewed
• [Journal Article] Personaliyu and participation in mass health checkups among Japanese community-dwelling elderly. (2009)
  • Author(s): Iwasa H, et al.
  • Journal Title: Journal of Psychosomatic Research 66 Pages: 155-159
  • Peer Reviewed
• [Journal Article] Personality and all-cause mortality among older adults dwelling in a Japanese community: a 5-year population-based prospective cohort study (2008)
  • Author(s): Iwasa H, Masui Y, Gondo Y, Inagaki H, Kawaai C, Suzuki T
  • Journal Title: American Journal of Geriatric Psychiatry 2008 16 Pages: 399-405
  • Peer Reviewed
• [Journal Article] Cognitive performance as a predictor of functional decline among the non-disabled elderly dwelling in a Japanese community: A 4-year population-based prospective cohort study (2008)
  • Author(s): Iwasa H, Gondo Y, Yoshida Y, Kwon J, Inagaki H, Kawaai C, Masui Y, Kim H, Yoshida H, Suzuki T
  • Journal Title: Archives of Gerontology and Geriatrics 2008 47 Pages: 139-149
• [Journal Article] Personality and all-cause mortality among older adults dwelling in a Japanese community: a 5-year population-based prospective cohort study. (2008)
  • Author(s): Iwasa H, et al.
  • Journal Title: American Journal of Geriatric Psychiatry 16 Pages: 399-405
  • Peer Reviewed
• [Journal Article] A mortality comparison of participants and non-participants in a comprehensive health examination among elderly people living in an urban Japanese community (2007)
  • Author(s): Iwasa H, Yoshida H, Kim H, Yoshida Y, Kwon J, Sugiura M, Furuna T, Suzuki T
  • Journal Title: Aging: Clinical and Experimental Research 19 Pages: 240-245
  • Peer Reviewed
• [Journal Article] 地域在宅超高齢者における廃用症候群の予防を目指した訪問型介入プログラム(「自分史くらぶ」)の開発〜予備的検討〜 (2007)
  • Author(s): 岩佐一, 権藤恭之, 増井幸恵, 稲垣宏樹, 鈴木隆雄
  • Journal Title: 老年社会科学 29 Pages: 75-83
  • NAID: 40015450711
• [Journal Article] A mortality comparison of participants and non-participants in a comprehensive health examination among elderly people living in an urban Japanese commuivty (2007)
  • Author(s): Iwasa H, et. al.
  • Journal Title: Aging: Clinical and Experimental Research 19 Pages: 240-245
  • Peer Reviewed
• [Journal Article] 地域在宅超高齢者における廃用症候群の予防を目指した訪問型介入プログラム(「自分史くらぶ」)の開発〜予備的検討〜 (2007)
  • Author(s): 岩佐 一
  • Journal Title: 老年社会科学 29 Pages: 75-83
  • NAID: 40015450711
  • Peer Reviewed
• [Journal Article] Depression status as a reliable predictor of functional decline among Japanese community-dwelling older adults: A 12-year population-based prospective cohort study
  • Author(s): Iwasa H, Yoshida Y, Kumagai S, Ihara K, Yoshida H, Suzuki T
  • Journal Title: International Journal of Geriatric Psychiatry in press
  • Peer Reviewed
• [Journal Article] Depression status as a reliable predictor of functional decling among Japanese community-dwelling older adults: A 12-year population-based prospective cohort study.
  • Author(s): Iwasa H, et al.
  • Journal Title: International Journal of Geriatric Psychiatry (印刷中)
  • Peer Reviewed
• [Journal Article] Cognitive performance as a predictor of functional decline among the non-disabled elderly dwellillg in a Japanese community
  • Author(s): Iwasa H, et. al.
  • Journal Title: Archives of Gerontology and Geriatrics (in press)
  • Peer Reviewed
• [Presentation] Personality and incidence of chronic disease among Japanese community-dwelling elderly. (2008)
  • Author(s): Iwasa H, et al.
  • Organizer: Gerontological Society of America 2008 Annual Meeting
  • Place of Presentation: National Harbor (MD)
  • Year and Date: 2008-11-22
• [Presentation] Personality and incidence of chronic disease among Japanese community-dwelling elderly (2008)
  • Author(s): Iwasa H, Masui Y, Gondo Y, Kawaai C, Inagaki H, Suzuki T
  • Organizer: Gerontological Society of America 2008 Annual Meeting
  • Place of Presentation: National Harbor (MD)
• [Presentation] 地域高齢者における抑うつが生活機能低下に及ぼす影響〜12年間の縦断調査結果から (2008)
  • Author(s): 岩佐 一, 吉田祐子, 吉田英世, ,熊谷修, 鈴木隆雄
  • Organizer: 日本公衆衛生学会第67回総会
  • Place of Presentation: 福岡
• [Presentation] A mortality comparison of participants and non-participants in mass health checkups among Japanese community-dwelling elderly (2008)
  • Author(s): Iwasa H, Yoshida Y, Kwon J, Kim H, Yoshida H, Suzuki T
  • Organizer: 7th World Congress on Aging and Physical Activity
  • Place of Presentation: Tsukuba
• [Presentation] 地域高齢者における抑うつ傾向と生活機能低下の関連 (2007)
  • Author(s): 岩佐 一, ほか
  • Organizer: 日本公衆衛生学会第66回総会
  • Place of Presentation: 愛媛県松山市
  • Year and Date: 2007-10-25
• [Presentation] Personality and all-cause mortality among older adults dwelling in a Japanese community (2007)
  • Author(s): Iwasa H, Masui Y, Gondo Y, Kawaai C, Inagaki H, Suzuki T
  • Organizer: Gerontological Society of America 2007 Annual Meeting
  • Place of Presentation: San Francisco
• [Presentation] 地域高齢者における抑うつ傾向と生命予後の関連 (2007)
  • Author(s): 岩佐 一,吉田祐子,吉田英世
  • Organizer: 日本民族衛生学会第72回総会
  • Place of Presentation: 富山
• [Presentation] Depressive status as a risk factor of functional decline among Japanese rural community-dwelling elderly: An 8-year prospective cohort study (2007)
  • Author(s): Iwasa H, Yoshida Y, Yoshida H, Kumagai S, Suzuki T
  • Organizer: Silver Congress of the International Psychogeriatric Association
  • Place of Presentation: Osaka
• [Presentation] 地域高齢者における抑うつ傾向と生活機能低下の関連〜8年間の縦断調査の結果から (2007)
  • Author(s): 岩佐 一, 吉田祐子, 吉田英世, 熊谷 修, 鈴木隆雄
  • Organizer: 日本公衆衛生学会第66回総会
  • Place of Presentation: 愛媛
• [Presentation] 地域高齢者における性格特性と生命予後の関連 〜5因子性格モデルによる検討〜 (2007)
  • Author(s): 岩佐一, 増井幸恵, 権藤恭之, 河合千恵子, 稲垣宏樹, 鈴木隆雄
  • Organizer: 日本老年社会科学会第49回総会
  • Place of Presentation: 札幌