Table 2.
Baseline prevalence of licit and illicit substance use by group and gender.
| Males | Females | All | ||||
|---|---|---|---|---|---|---|
| CG (n = 372) | IG (n = 140) | CG (n = 457) | IG (n = 286) | CG (829) | IG (n = 426) | |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | |
| Alcohol use | ||||||
| 3x/week or more | 98 (26.3) | 28 (20.0) | 55 (12.0) | 30 (10.5) | 153 (18.5) | 58 (13.6) |
| Tobacco use | ||||||
| 3x/week or more | 49 (13.2) | 15 (10.7) | 52 (11.4) | 31 (10.8) | 101 (12.2) | 46 (10.8) |
| Cannabis use | ||||||
| At least 1x/week | 27 (7.3) | 8 (5.7) | 12 (2.6) | 6 (2.1) | 39 (4.7) | 14 (3.3) |
| Episodes of drunkenness | ||||||
| At least 1x/week | 58 (15.6) | 19 (13.6) | 34 (7.4) | 20 (7.0) | 92 (11.1) | 39 (9.2) |
| Academic performance enhancing drugs | ||||||
| Use in the past 2 months | 4 (1.1) | 0 (0) | 4 (0.9) | 1 (0.3) | 8 (1.0) | 1 (0.2) |
| Sedatives/sleeping pills | ||||||
| Use in the past 2 months | 2 (0.5) | 1 (0.7) | 8 (1.8) | 5 (1.7) | 10 (1.2) | 6 (1.4) |
| Synthetic cannabis | ||||||
| Use in the past 2 months | 3 (0.8) | 1 (0.7) | 2 (0.4) | 2 (0.7) | 5 (0.6) | 3 (0.7) |
CG, Control group; IG, Intervention group.