Illicit drug use and prescription drug misuse in the past 3 months |
Any illicit drug (marijuana, cocaine and/or heroin) use (N = 576) |
296/576 |
51 % (47–55 %) |
Marijuana use only (N = 341) |
148/341 |
43 % (38–49 %) |
Cocaine use only (N = 43) |
18/43 |
42 % (27–57 %) |
Heroin use only (N = 7) |
5/7 |
71 % (29–96 %) |
Prescription drug misuse (N = 121) |
98/121 |
81 % (74–88 %) |
Alcohol use in past 3 months |
Any heavy drinking [women: > 3, men: > 4 standard drinks] (N = 265) |
100/265 |
38 % (32–44 %) |
High-risk alcohol use [ASSIST ≥ 27] (N = 57) |
45/57 |
79 % (68–90 %) |
Alcohol use in past year |
AUDIT-C positive for unhealthy alcohol use [women: ≥ 3, men: ≥ 4] (N = 371) |
129/371 |
35 % (30–40 %) |
AUDIT-C positive for alcohol dependence [AUDIT-C ≥ 10] (N = 114) |
69/114 |
61 % (52–70 %) |