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Survey Data and Documentation

Image of phoneIn 1984, the Centers for Disease Control and Prevention (CDC) initiated the state-based Behavioral Risk Factor Surveillance System (BRFSS)--a cross-sectional telephone survey that state health departments conduct monthly over landline telephones and cellular telephones with a standardized questionnaire and technical and methodologic assistance from CDC. BRFSS is used to collect prevalence data among adult U.S. residents regarding their risk behaviors and preventive health practices that can affect their health status. Respondent data are forwarded to CDC to be aggregated for each state, returned with standard tabulations, and published at year's end by each state. In 2011, more than 500,000 interviews were conducted in the states, the District of Columbia, and participating U.S. territories and other geographic areas.  

The BRFSS Data User Guide (PDF - 205 KB)
This document is intended to provide a brief overview of BRFSS to data users. Specific information regarding data quality, response and/or cooperation rates, or calling outcome can be found in the Summary Data Quality Report produced each year in conjunction with the annual data release. Data users needing more information about comparability across years should refer to the annual Comparability of Data document, particularly before using the data to conduct trend analyses.

2013 Survey Data and Documentation

The 2013 BRFSS data continues to reflect the changes initially made in 2011...

GIS Maps Data and Documentation

Download the BRFSS GIS Maps data for analysis. These files contain data and documentation, and are available in Zip Archive File (ZIP) format. The zip format contains one or more files within it and is compressed to minimize the file's size...

1984 - 2012 Survey Data and Documentation

The 2011-2012 BRFSS data reflects a change in weighting methodology...

SMART: City and County Survey Data and Documentation

Access the survey data and documentation for any SMART: BRFSS survey year...

Asthma Call-back Survey Data and Documentation

The Asthma Call-back Survey (ACBS) is an in-depth asthma survey developed and funded by the Air Pollution and Respiratory Health Branch (APRHB) in the National Center for Environmental Health (NCEH)...

BRFSS Statistical Briefs

The Analysis and Survey Method Team will create a series of statistical briefs...

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