| Variable | Frequency | Percentage (%) |
| Use of substance |
|
|
| Yes | 82 | 88.2 |
| No | 11 | 11.8 |
| Total | 93 | 100.0 |
| Fathers use of substances |
|
|
| Yes | 39 | 41.9 |
| No | 54 | 58.1 |
| Total | 93 | 100.0 |
| Mothers use of substances |
|
|
| Yes | 4 | 4.3 |
| No | 89 | 95.7 |
| Total | 93 | 100.0 |
| Family history of mental illness |
|
|
| Yes | 18 | 19.4 |
| No | 75 | 80.6 |
| Total | 93 | 100.0 |
| Injecting drugs |
|
|
| Never | 83 | 89.2 |
| Yes(in the past 3 months) | 2 | 2.2 |
| Yes(not in the past 3 months) | 8 | 8.6 |
| Total | 93 | 100.0 |
| Frequency of use of substances |
|
|
| Never | 7 | 7.5 |
| Once or twice | 14 | 15.1 |
| Monthly | 10 | 10.8 |
| Weekly | 16 | 17.2 |
| Daily or almost daily | 46 | 49.5 |
| Total | 93 | 100.0 |
| Strong desire to use substances |
|
|
| Never | 14 | 15.1 |
| Once or twice | 17 | 18.3 |
| Monthly | 5 | 5.4 |
| Weekly | 15 | 16.1 |
| Daily or almost daily | 42 | 45.2 |
| Total | 93 | 100.0 |