ArticleJournal of preventive medicine and public health = Yebang Uihakhoe chi2026
Associations of Body Mass Index and Waist Circumference With Falls Among Community-dwelling Older Adults in Korea.
Article in Journal of preventive medicine and public health = Yebang Uihakhoe chi, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objectives: This study aimed to investigate the association between obesity and falls among community-dwelling older adults in Korea and to assess whether body mass index (BMI) or waist circumference (WC) more accurately predicts fall risk. Methods: This study included 4378 community-dwelling older adults aged ≥65 years from the seventh Korea National Health and Nutrition Examination Survey (2016-2018). Complex-sample logistic regression analyses were conducted to examine the associations between general and central obesity and falls, stratified by sex and age group. Predictive accuracy was evaluated using Harrell's C-index, and differences between WC and BMI were assessed using the ΔC-index and the DeLong test. Results: BMI-defined general obesity was not significantly associated with falls. In contrast, WC-defined central obesity was significantly associated with falls among older adults overall (adjusted odds ratio, 1.82; 95% confidence interval, 1.20 to 2.76). In sex-stratified analyses, central obesity remained significantly associated with falls in both males and females. Age-stratified analyses showed a significant association between central obesity and falls among adults aged 65-74 years, but not among those aged ≥75 years. WC demonstrated a modest but statistically significant improvement in predictive ability compared with BMI (ΔC-index=0.047, p=0.044), although subgroup differences were not statistically significant. Conclusions: Central obesity, but not general obesity defined by BMI, was significantly associated with falls among community-dwelling older Korean adults. WC showed slightly better predictive performance than BMI. These findings suggest that WC may be a more appropriate indicator than BMI for identifying older adults at increased risk of falls.
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