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December 10, 2003

Factors in the Increasing Prevalence of Hypertension—Reply

Author Affiliations

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;290(22):2940. doi:10.1001/jama.290.22.2940-a

To the Editor: In their analyses of National Health and Nutrition Examination Survey (NHANES) data and hypertension prevalence, Drs Hajjar and Kotchen1 examined the possibility that the increase in age-adjusted hypertension prevalence between 1988-1991 (NHANES I) and 1999-2000 (NHANES III) could be related to the documented increase in body mass index (BMI). To do so, they used an analysis of covariance to adjust for age, sex, and race/ethnicity, and reported that BMI "contributed to 2%—more than half—of the 3.6% increase in hypertension prevalence."