Table 1: Prevalence of current and lifetime usage of alcohol, tobacco and illicit narcotic substances among mental health patients.
| Number | Prevalence | 95% confidence interval | |
| Current alcohol usage | 172 | 42.6 | 38.0 - 48.0 |
| Life time alcohol usage | 217 | 53.7 | 49.0 - 59.0 |
| Current tobacco usage | 62 | 15.3 | 12.0 - 19.0 |
| Life time tobacco usage | 98 | 24.3 | 20.0 - 28.0 |
| Current narcotics usage | 11 | 2.7 | 1.4 - 4.8 |
| Life time narcotics usage | 24 | 5.9 | 3.6 - 8.2 |