Association between physical function and long-term care in community-dwelling older and oldest people: the SONIC study
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(2020) 25:46
Environmental Health and Preventive Medicine
RESEARCH ARTICLE
Open Access
Association between physical function and long-term care in community-dwelling older and oldest people: the SONIC study Werayuth Srithumsuk1, Mai Kabayama1, Kayo Godai1, Nonglak Klinpudtan1, Ken Sugimoto2, Hiroshi Akasaka2, Yoichi Takami2, Yasushi Takeya2, Koichi Yamamoto2, Saori Yasumoto3, Yasuyuki Gondo3, Yasumichi Arai4, Yukie Masui5, Tatsuro Ishizaki5, Hiroshi Shimokata6, Hiromi Rakugi2 and Kei Kamide1,2*
Abstract Background: Preventing the need for long-term care (LTC) by identifying physical function risk factors are important to decrease the LTC burden. The objective of this study was to investigate whether grip strength and/or walking speed, which are components of the frailty definition, are associated with LTC in community-dwelling older and oldest people. Methods: The participants were 1098 community-dwelling older and oldest people who had not received LTC at the baseline. The endpoint was receiving LTC after the baseline survey. The independent variables were grip strength and walking speed, and participants were divided into two groups based on these variables. The confounding factors were age, sex, the Japanese version of the Montreal Cognitive Assessment (MoCA-J), hypertension, diabetes mellitus, stroke, joint diseases, living alone, body mass index, and serum albumin. We calculated the hazard ratio of receiving LTC using the Cox proportional hazard model. Results: Among the 1098 participants, 107 (9.7%) newly received LTC during the follow-up. Regarding the physical function, only slow walking speed was significantly correlated with LTC after adjusting for all confounding factors except the MoCA-J score (HR = 1.74, 95% CI = 1.10–2.75, P = .018). However, slow walking speed was still a risk factor for LTC after adjusting for the MoCA-J score and other confounding factors (HR = 1.64, 95% CI = 1.03–2.60, P = .037). Conclusions: The findings from this study may contribute to a better understanding of slow walking speed as a factor related to LTC, which might be a criterion for disability prevention and could serve as an outcome measure for physical function in older people. Keywords: Frailty, Grip strength, Long-term care, Older people, Walking speed
* Correspondence: [email protected] 1 Department of Health Promotion System Sciences, Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, Japan 2 Department of Geriatric and General Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third p
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