Is a higher body mass index associated with longer duration of survival with disability in frail than in non-frail older adults?

ABSTRACT:

Background/objectives

This study investigated the hitherto unclear association of body mass index (BMI) with age at overall, disability, and disability-free survival in older adults with and without frailty.

Methods

This prospective cohort study enroled 10232 Japanese adults aged ≥65 years, who underwent follow-up for adverse events, from the Kyoto-Kameoka Study conducted from 2011-2016. BMI, calculated based on self-reported height and body weight, was classified into five categories: <18.5, 18.5-21.4, 21.5-24.9, 25.0-27.4, and ≥27.5 kg/m². Frailty was assessed using the validated Kihon Checklist. The relationships between BMI and disability and mortality were analysed using multivariate Cox proportional hazards models and Laplace regression.

Results

Durin

SUBMITTER: Watanabe D 

PROVIDER: S-EPMC11805705 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature