Any Tobacco Use in 13 States --- Behavioral Risk Factor Surveillance System, 2008
To estimate the prevalence of any tobacco and polytobacco use, CDC analyzed data from the 2008 Behavioral Risk Factor Surveillance System (BRFSS) (the most recent data available) module on use of other tobacco products, which was implemented by 13 states.
http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5930a3.htm?s_cid=mm5930a3_e

