How are BRFSS data weighted? And what post-stratification variables are used when weighting BRFSS data?
BRFSS data are directly weighted for the probability of selection of a telephone number, the number of adults in a household, and the number of telephones in a household. A final poststratification adjustment is made for nonresponse and noncoverage of households without telephones. The weights for each relevant factor are multiplied together to get a final weight. Please see Technical Documentation for further details.