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Does obesity associate with mortality among Hispanic persons? Results from the National Health Interview Survey
Tapan Mehta1, Raymond McCubrey, Nicholas M Pajewski
1Department of Biostatistics, Section on Statistical Genetics & Nutrition Obesity Research Center, University of Alabama at Birmingham, AL, USA.
Objective:
To evaluate the association between BMI: kg/m(2) and mortality among Hispanic adults.
Design And Methods:
Eight years (1997-2004) of National Health Interview Survey data linked to public-use mortality follow-up data through 2006 were acquired. Using Cox proportional hazards regression, separate models for two attained age strata (18 to <60 years, ≥60 years) adjusting for sex, smoking, and physical activity with over 38,000 analyzable respondents were fit.
Results:
Among those aged ≥60 years, underweight (BMI ≤ 18.5) associated with elevated mortality (hazard ratio [HR] = 2.19; 95% confidence interval [CI], 1.38-3.46), whereas overweight (BMI of 25 to <30) and obesity grade 1 (BMI of 30 to <35) associated with reduced mortality (HRs = 0.79; 95% CI, 0.65-0.95 and 0.71; 95% CI, 0.56-0.91), respectively. There were no significant associations between BMI and mortality among the 18 to <60 years attained age strata or among never smokers for either age strata.
Conclusions:
Overweight and obesity are not obviously associated with elevated mortality among Hispanic adults.
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