US Trends in Prevalence, Awareness, Treatment, and Control of Hypertension, 1988-2008

A PREVAlent condition affecting approximately 65 million individuals in the United States based on a preliminary report from the National Health and Nutrition Examination Survey (NHANES) 2005-2006 and coincident US population estimates. 1,2[9][10] Hypertension control (defined as systolic blood pressure [BP] of Ͻ140 mm Hg and diastolic BP of Ͻ90 mm Hg) increased from 10% in NHANES II (1976II ( -1980II ( ) to 31.0% in 1999II ( -2000. 11,12.11,12 Another NHANES analysis reported that hypertension control increased from 25.0% in 1999-2000 to 33.1% in 2003-2004. 132][13] However, differences in defining hypertension control and variable age-adjustments limit the capacity to assess changes over time. 12,13Moreover, BP data from NHANES 2007-2008 were recently released.Our study examined changes in hypertension prevalence, awareness, treatment, and control for all adults combined and for subsets by age, race/ ethnicity, and sex across NHANES 1988-1994 and 1999-2008.NHANES 1988-1994 and 1999-2008 were conducted by the US Centers for Disease Control and Prevention National Center for Health Statistics.NHANES volunteers were selected using stratified, multistage probability sampling of the noninstitutional-See also p 2082 and Patient Page. METHODS