CHIS Data-Lifetime Asthma Prevalence by County 2015-Present

This dataset contains lifetime asthma prevalence, the estimated percentage of Californians who have ever been diagnosed with asthma by a health care provider, statewide and by county. The data are stratified by age group (all ages, 0-17, 18+, 0-4, 5-17, 18-64, 65+) and reported for 2-year periods. These data are derived from the California Health Interview Survey (CHIS).