Classification of frailty using the Kihon checklist: A cluster analysis of older adults in urban areas

Geriatrics and Gerontology International - Tập 17 Số 1 - Trang 69-77 - 2017
Takeshi Kera1, Hisashi Kawai1, Hideyo Yoshida1, Hirohiko Hirano1, Motonaga Kojima2, Yoshinori Fujiwara1, Kazushige Ihara3, Shuichi Obuchi1
1Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
2University of Tokyo Health Sciences, Tokyo, Japan
3Toho University, Tokyo, Japan

Tóm tắt

AimFrailty is an important predictor of the need for long‐term care and hospitalization. Our aim was to categorize frailty in community‐dwelling older adults.MethodsThe present study was carried out in 2011–2013, and consisted of 1380 individuals over 65 years of age. Participants completed the Kihon checklist, which is widely used to assess frailty in Japan, and their physical, cognitive and social function was evaluated. Non‐hierarchical cluster analysis was used to statistically categorize frailty. The optimum number of clusters was determined as the point at which the external reference values (instrumental activity of daily living score, grip power, 10‐m walk time, body mass index, portable fall risk index, occlusal force and Mini‐Mental State Examination score) differed.ResultsAccording to the Kihon checklist, 369 (26.7%) of the 1380 study participants were considered frail. When the cluster number was increased from two to six, the scores in each subdomain of the Kihon checklist significantly differed. The estimated minimum number of clusters was five, and each of the five cluster groups had distinct characteristics. The numbers of participants in cluster groups 1–5 were 105, 78, 62, 71 and 53, respectively.ConclusionsWe identified five types of frailty in community‐dwelling older adults in Japan: “experience of falling,” “pre‐frailty,” “oral frailty,” “housebound” and “severe frailty.” Geriatr Gerontol Int 2017; 17: 69–77.

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