HOW MANY DAYS SMOKED CIG IN PAST 30 DAYS
These questions are about your use of tobacco products. This includes
cigarettes, chewing tobacco, snuff, cigars, and pipe tobacco. The first
questions are about cigarettes only.
During the past 30 days, that is since [DATEFILL], on how many days d... (view details)
Taken from: National Survey on Drug Use and Health, 2012.