lifetime. Tobacco dependence criteria were assessed in cases where a respondent reported having smoked 20 cigarettes, having smoked a cigar or pipe more than five times, or having used snuff or chewing tobacco more than five times in their lifetime. Cannabis dependence symptoms were assessed if participants reported using marijuana, grass, pot, or hashish six or more times in their lifetime. The dependent variable of interest for this study was the total number of DSM-IV dependence symptoms endorsed by each respondent who reported that they had used alcohol, tobacco, or cannabis in their lifetime. Abstainers were included in the analyses as having missing values. An earlier report using the CIDI-SAM in the CADD has shown that is reasonably reliable (Young et al., 2002).
