California Smokers Cohort (CSC). In California Tobacco Survey (CTS)

The California Smokers' Cohort (CSC) is a continuation of a series of triennial surveys, called the California Tobacco Survey (CTS), conducted from 1990 to 2008. The previous CTS is a series of cross-sectional studies to collect information about tobacco use and behaviors among Californians. In 2011, the survey design was modified to survey only smokers, and moreover to perform longitudinal surveys to investigate factors associated with quitting behavior.