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Self-rated health is associated with subsequent functional decline among older adults in Japan

Published online by Cambridge University Press:  31 May 2017

Mayumi Hirosaki*
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Kiyohito Okumiya
Affiliation:
Research Institute of Humanity and Nature, Kyoto, Japan
Taizo Wada
Affiliation:
Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan
Masayuki Ishine
Affiliation:
Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan
Ryota Sakamoto
Affiliation:
Research Institute of Humanity and Nature, Kyoto, Japan
Yasuko Ishimoto
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Yoriko Kasahara
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Yumi Kimura
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Eriko Fukutomi
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Wen Ling Chen
Affiliation:
Department of Field Medicine, Graduate School of Public Health, Kyoto University, Kyoto, Japan
Masahiro Nakatsuka
Affiliation:
Human Brain Research Center, Kyoto University, Kyoto, Japan
Michiko Fujisawa
Affiliation:
Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan
Kuniaki Otsuka
Affiliation:
Department of Medicine, Tokyo Women's Medical University, Medical Center East, Tokyo, Japan
Kozo Matsubayashi
Affiliation:
Center for Southeast Asian Studies, Kyoto University, Kyoto, Japan
*
Correspondence should be addressed to: Mayumi Hirosaki, Department of Epidemiology, Fukushima Medical University, 1 Hikarigaoka, Fukushima city, Fukushima, 960-1295, Japan. Phone: +81-24-547-1345; Fax: +81-24-547-1346. Email: mayumi23gogo@yahoo.co.jp.

Abstract

Background:

Previous studies have reported that self-rated health (SRH) predicts subsequent mortality. However, less is known about the association between SRH and functional ability. The aim of this study was to examine whether SRH predicts decline in basic activities of daily living (ADL), even after adjustment for depression, among community-dwelling older adults in Japan.

Methods:

A three-year prospective cohort study was conducted among 654 residents aged 65 years and older without disability in performing basic ADL at baseline. SRH was assessed using a visual analogue scale (range; 0–100), and dichotomized into low and high groups. Information on functional ability, sociodemographic factors, depressive symptoms, and medical conditions were obtained using a self-administered questionnaire. Logistic regression analysis was used to examine the association between baseline SRH and functional decline three years later.

Results:

One hundred and eight (16.5%) participants reported a decline in basic ADL at the three-year follow-up. Multiple logistic regression analysis showed that the low SRH group had a higher risk for functional decline compared to the high SRH group, even after controlling for potential confounding factors (odds ratio (OR) = 2.4; 95% confidence interval (CI) = 1.3–4.4). Furthermore, a 10-point difference in SRH score was associated with subsequent functional decline (OR = 1.37; 95% CI = 1.16–1.61).

Conclusions:

SRH was an independent predictor of functional decline. SRH could be a simple assessment tool for predicting the loss or maintenance of functional ability in community-dwelling older adults. Positive self-evaluation might be useful to maintain an active lifestyle and stay healthy.

Type
Research Article
Copyright
Copyright © International Psychogeriatric Association 2017 

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