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Larger Body Mass Index and Waist Circumference Are Associated with Lower Mortality in Chinese Long‐Term Care Facility Residents
Author(s) -
Lin WenYuan,
Albu Jeanine,
Liu ChiuShong,
Huang HuiYing,
PiSunyer F. Xavier,
Li ChiaIng,
Li TsaiChung,
Lin ChengChieh,
Huang KuoChin
Publication year - 2010
Publication title -
journal of the american geriatrics society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.992
H-Index - 232
eISSN - 1532-5415
pISSN - 0002-8614
DOI - 10.1111/j.1532-5415.2010.03148.x
Subject(s) - medicine , quartile , body mass index , waist , anthropometry , confidence interval , obesity , demography , prospective cohort study , waist to height ratio , cohort study , cohort , sociology
OBJECTIVES: To investigate the association between body mass index (BMI) and waist circumference (WC) and all‐cause mortality of Chinese residents in long‐term care facilities in Taiwan. DESIGN: Prospective cohort study. SETTING: Eight long‐term care facilities in Taiwan. PARTICIPANTS: Three hundred fifty‐four residents aged 60 and older (median 78.4, range 60–101; 156 men, 198 women) were recruited during the study period. MEASUREMENTS: Anthropometrics and metabolic parameters were measured at baseline. Mean BMI was 21.7±4.2 kg/m 2 (range 11.6–35.3 kg/m 2 , and mean WC was 82.4±10.9 cm (range 55.0–124.0 cm). Mortality data were from the Department of Health in Taiwan. RESULTS: There were 219 deaths during the 5 years of follow‐up. After adjusting for age, sex, albumin, Karnofsky performance status scale, hypertension, and diabetes mellitus, subjects in the highest quartile of BMI (27.3± 2.8 kg/m 2 ) and WC (96.7±7.4 cm) had a significantly lower mortality rate than did subjects in the lowest quartile (BMI, 16.7±1.7 kg/m 2 ; WC, 69.6±4.2 cm). After further stratification according to central obesity status, the subjects in the two highest BMI quartiles had a lower mortality rate than those in the lowest BMI quartile but only in the central obesity group (≥90 cm in men or ≥80 cm in women). The adjusted relative risk for all‐cause mortality in the highest versus lowest BMI quartile was 0.17 (95% confidence interval=0.05–0.57). CONCLUSION: BMI and WC were negative predictors for all‐cause mortality in older Chinese adults living in long‐term care facilities. Participants with higher WC and BMI had lower all‐cause mortality.