Behavioral Health Risks
of Pennsylvania Adults
The BRFSS is a sample based survey, making it necessary to weight the data for calculating percentages. This adjusts for under-representation of subgroups. Confidence intervals are shown for percentages and are calculated at the 95% level. These provide a basis for quality analysis and comparability. Please refer to the Technical Notes section for a more thorough discussion of these concerns.
The 2011 survey marks the first year in which the Pennsylvania BRFSS collected data from both landline and cell phone respondents. To allow for the incorporation of cell phone data, a new weighting methodology called iterative proportional fitting or raking was implemented in 2011. A detailed explanation of raking can be referenced in our Changes in the BRFSS Methodology
(PDF) document. These methodological changes will cause breaks in BRFSS trends, but they will also significantly improve the accuracy, coverage, validity, and representativeness of the Pennsylvania BRFSS. Therefore, measures should be re-benchmarked at the 2011 estimate values, and not compared to BRFSS estimates from previous years.
The BRFSS reports can be found below:
Past and present BRFSS questionnaires can be found below:
BRFSS data for 2011 and prior years can be found through the Pennsylvania Department of Health's Enterprise Data Dissemination Informatics Exchange (EDDIE)
. In addition to single year data as seen in the annual report, you will have access to three-year aggregate statewide and regional data, including county and county aggregate BRFSS statistics.
An analysis of the seven state-added gambling questions for 2012 can be found in the 2012 BRFSS Gambling Report
(PDF). The relationships between BRFSS demographic categories and gambling are detailed in the report.
To view national BRFSS data for all states, visit the CDC's BRFSS Website
and see how Pennsylvania compares to other states for health risk behaviors.
BRFSS Data Collection Protocols
Below are Data Collection Protocols for the surveys conducted for the BRFSS. The CDC's Division of Behavioral Surveillance adjusts the data collection process frequently and provides updates as changes occur.