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Title: Body-Mass Index and Mortality Risk in US Blacks Compared to Whites
Citation Type: Journal Article
Publication Year: 2014
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Abstract: Objective: To compare body-mass index (BMI)-related mortality risk in US Blacks vs. Whites as the relationship appears to differ across race/ethnicity groups.Design and Methods: We pooled cross-sectional surveys of nationally representative samples of 11,934 Blacks and 59,741 Whites aged 35-75 in the National Health Interview Survey from 1997-2002 with no history of cardiovascular disease or cancer. Mortality follow-up was available through 2006. BMI was calculated from self-reported height and weight. We used adjusted Cox regression analysis to adjust for potential confounders.Results: Over 9 years of follow-up, there were 4,303 deaths (1,205 among never smokers). Age-adjusted mortality rates were higher in Blacks compared to Whites at BMI < 25 kg/m2 and showed no increase at higher levels of BMI. In men, adjusted hazard ratios for all-cause death rose in a similar fashion across upper BMI quintiles in Blacks and Whites; in women, however, BMI was positively associated with mortality risk in Whites, but inversely associated in Blacks (p interaction = 0.01). Racial disparities were amplified in subsidiary analyses that introduced a 12-month lag for mortality or focused on CVD mortality.Conclusions: The relationship of elevated BMI to mortality appears weaker in US Blacks than in Whites, especially among women.
Url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3844096/
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Authors: Brancati, Frederick L.; Dray-Spira, Rosemary; Yeh, Hsin-Chieh; Wang, Nae-Yuh; Szklo, Moyses; Jackson, Chandra L.
Periodical (Full): Obesity
Issue: 3
Volume: 22
Pages: 842-851
Data Collections: IPUMS Health Surveys - NHIS
Topics: Health, Race and Ethnicity
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