The CDC Behavioral Risk Factor Surveillance System, the largest continuously conducted health survey in the world. 2,890,479 rows. Per row: state/territory, year, the survey question/topic (chronic conditions, smoking, drinking, obesity, exercise, preventive care, access to care), response breakdowns, and weighted prevalence with confidence intervals. ~400,000 adult phone interviews per year. The backbone of US state-level public-health surveillance.
Every record in this dataset can be traced back to its primary source at https://www.cdc.gov/brfss/. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. AI Analytics-authored metadata and normalization are CC0 only where expressly stated.