Daily sleep duration and the risk of incident disability among younger elderly Japanese adults in the New Integrated Suburban Seniority Investigation Project : A prospective study using competing event analysis

Zhang, Lin; Ukawa, Shigekazu; Zhao, Wenjing; Okabayashi, Satoe; Ando, Masahiko; Wakai, Kenji; Tsushita, Kazuyo; Kawamura, Takashi; Tamakoshi, Akiko

Daily sleep duration and the risk of incident disability among younger elderly Japanese adults in the New Integrated Suburban Seniority Investigation Project : A prospective study using competing event analysis

Zhang, Lin; Ukawa, Shigekazu; Zhao, Wenjing et al.

Geriatrics & gerontology international, 2019, 19(9), 945-949

Permalink : https://hdl.handle.net/2115/79225

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アクセス権	open access
URI	https://hdl.handle.net/2115/79225
タイトル	Daily sleep duration and the risk of incident disability among younger elderly Japanese adults in the New Integrated Suburban Seniority Investigation Project : A prospective study using competing event analysis
著者	Zhang, Lin ; Ukawa, Shigekazu ; Zhao, Wenjing ; Okabayashi, Satoe ; Ando, Masahiko ; Wakai, Kenji ; Tsushita, Kazuyo ; Kawamura, Takashi ; Tamakoshi, Akiko
著者名 Zhang, Lin
e-Rad_Researcher 40706751 著者名 Ukawa, Shigekazu
著者名 Zhao, Wenjing
e-Rad_Researcher 70526805 著者名 Okabayashi, Satoe
e-Rad_Researcher 10322736 著者名 Ando, Masahiko
e-Rad_Researcher 50270989 著者名 Wakai, Kenji
著者名 Tsushita, Kazuyo
e-Rad_Researcher 10252230 著者名 Kawamura, Takashi
e-Rad_Researcher 90236737 著者名 Tamakoshi, Akiko
言語	英語
キーワード	disability
	prospective cohort study
	sleep duration
発行日	2019-09-06
出版者	John Wiley & Sons
収録物名	Geriatrics & gerontology international
巻(号)	19(9)
ページ	945-949
抄録	Aim This study aimed to investigate the association between daily sleep duration and incident disability among younger elderly individuals in Japan. Methods We carried out a prospective cohort study, the New Integrated Suburban Seniority Investigation Project, including 1895 (962 men and 933 women) Japanese physically and socially independent individuals aged >= 65 years. Information on daily sleep duration, demographic, lifestyle characteristics and medical status were collected by questionnaire and health checkup every year from 1996 through 2005. Dates of incident disability were confirmed using the certification for the long-term care insurance in Japan. We treated censored cases due to death as competing events. A competing risk model was used to calculate the hazard ratio and 95% confidence interval for incident disability. Results During a median of 12.7 years of follow up, 256 participants (114 men and 142 women) reported incident disability. Compared with a sleep duration of 7-7.9 h/day, sleeping <6 h/day showed an increased risk of incident disability (hazard ratio 1.64, 95% confidence interval 1.13-2.38 for total; hazard ratio 1.90, 95% confidence interval 1.19-3.03 for women). Conclusions The present findings suggest that shorter sleep duration was associated with a higher risk of incident disability among older Japanese people. Geriatr Gerontol Int 2019; center dot center dot: center dot center dot-center dot center dot.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is the peer reviewed version of the following article: Lin Zhang Shigekazu Ukawa Wenjing Zhao Satoe Okabayashi Masahiko Ando Kenji Wakai Kazuyo Tsushita Takashi Kawamura Akiko Tamakoshi (2019) Geriatrics & gerontology international: 19(9): 945-949, which has been published in final form at https://doi.org/10.1111/ggi.13732. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
PISSN	1444-1586
関連情報	PMID 31332921
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1111/ggi.13732