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BRFSS Prevalence & Trends Data

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Use caution in interpreting cell sizes less than 50.
If you see that a question is not available for a particular year, it is because the question was dropped or changed. Check the category of interest for that year to find similar items.
Denominator includes all respondents except those with missing, don't know, and refused answers.
** Median value reported with no confidence intervals.

Measure Definitions

% = Percent
CI = 95% Confidence Interval
n = “Sample Size”. Translates to the number of adult respondents who answered this question, or were assigned to this category based on question responses for a calculated variable, or the number of states included for a median.
N/A = Translates to no data available for a record.
No Data = Translates to no data available for record.

Suggested Citation

Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Division of Population Health. BRFSS Prevalence & Trends Data [online]. 2015. [accessed Nov 22, 2017]. URL: