Table 2

Maximum absolute prevalence differences between 2000 Behavioral Risk Factor Surveillance System (BRFSS) and 2000 Decennial Census estimates for six sociodemographic factors: values before and after adjustment for non-response/non-coverage (NR/NC). Medians and interquartile ranges (IQR) for the prevalence differences reported as well as indicators for whether the differences were statistically significant (p<0.05)

Maximum absolute prevalence differenceMedianIQRSignificantly different from Census
BRFSS–CensusNot adjusted for NR/NCAdjusted for NR/NCNot adjusted for NR/NCAdjusted for NR/NCNot adjusted for NR/NCAdjusted for NR/NCNot adjusted for NR/NCAdjusted for NR/NC
State level*
Included in adjustment for NR/NC:
 % Women14.40.15.90.32.00.4
 % White20.618.42.62.02.62.2
 % 18–34 years old5.00.11.21.32.11.3
 % Hispanic6.64.70.80.91.41.4
Not included in adjustment for NR/NC:
 % Income <$150009.89.66.26.03.23.0
 % Married8.05.64.22.31.92.0
County level*
Included in adjustment for NR/NC:
 % Women24.818.26.53.56.55.0
 % White32.129.92.62.64.34.3
 % 18–34 years old21.426.93.53.54.84.7
 % Hispanic16.918.31.51.62.42.5
Not included in adjustment for NR/NC:
 % Income <$1500029.430.06.36.45.25.2
 % Married22.421.14.43.95.35.1
  • * State-level analyses included 50 states and DC. Number of counties for county-level analyses varied due to missing data and minimum sample size requirements (gender: n=732; race: n=730; age: n=732; ethnicity: n=729; income <$15 000:, n=638; marital status: n=730).

  • BRFSS significantly different from Census at p<0.05.