Groups did not differ on any demographic characteristic (ps > .05, see Table 1). The BG+MJ group had more lifetime drinking episodes than BG or CON groups (p<.005), so this variable was used as a covariate in follow-up analyses. The BG+MJ reported more lifetime illicit drug use episodes (other than alcohol, marijuana, or nicotine) compared to BG and CON (p<.05). In particular, the BG+MJ group reported more lifetime ecstasy use episodes than other groups (see Table 1; p<.05), although no one in any group used it more than once. Groups did not differ on lifetime amphetamine, hallucinogen, barbiturates, benzodiazepine, cocaine, opiate, ketamine, GHB, or inhalant use (ps>.05).
