CHD prevalence data were analyzed by age group, sex, education, state, and racial/ethnic population (Hispanic, white, black, Asian or Native Hawaiian/Other Pacific Islander, or American Indian/Alaska Native).* All estimates were weighted to the state population, and analyses were conducted using statistical software to account for the complex sampling design. Age-adjusted prevalence of CHD, standardized to the 2000 U.S. standard population, was estimated for each year during the period 2006-2010. Orthogonal polynomial coefficients, which were calculated recursively, were used to determine the significance of linear trends. The number of BRFSS respondents ranged from 347,790 in 2006 to 444,927 in 2010 for all states. Sample sizes for states (including DC) ranged from 1,964 in Alaska in 2010 to 39,549 in Florida in 2007. Median BRFSS response rate during 2006-2010 was 52.3%.