Gender-dependent association of body mass index and waist circumference with disability in the Chinese oldest old.

Journal Article (Journal Article)

OBJECTIVES: To explore associations of BMI and waist circumference (WC) with disability among the Chinese oldest old. METHODS: The 5,495 oldest old in the sixth wave of Chinese Longitudinal Healthy Longevity Study conducted in 2011 were included in this study. Disability was assessed by activities of daily living (ADL); height and weight for BMI and WC were measured; information including socio-demographics, lifestyles, and health status was collected. RESULTS: Generalized additive models analysis showed that the association of BMI/WC with ADL disability was nonlinear. Among the males, logistic regression results supported a "J" shape association between ADL disability with BMI/WC-the highest tertile group in BMI or WC was significantly associated with an increased risk of ADL disability: odds ratio 1.78 (95% confidence interval (CI): 1.26-2.52) for BMI and 2.01 (95% CI: 1.44-2.82) for WC. Among females, an inverse "J" shape association was found, only the lowest tertile group before the cutoff point had an increased risk of ADL disability: odds ratio 1.42 (95%CI: 1.02-1.97) for BMI and 1.47 (95% CI:1.06-2.04) for WC. CONCLUSIONS: Associations of BMI and WC with ADL disability are significant even in the oldest old, but differ between the genders.

Full Text

Duke Authors

Cited Authors

  • Yin, Z; Shi, X; Kraus, VB; Brasher, MS; Chen, H; Liu, Y; Lv, Y; Zeng, Y

Published Date

  • August 2014

Published In

Volume / Issue

  • 22 / 8

Start / End Page

  • 1918 - 1925

PubMed ID

  • 24777985

Pubmed Central ID

  • PMC4114995

Electronic International Standard Serial Number (EISSN)

  • 1930-739X

Digital Object Identifier (DOI)

  • 10.1002/oby.20775


  • eng

Conference Location

  • United States