Commonly used drugs and delivery method
| Drug | n (%) | Male, %a | Female, %a | P-value |
|---|---|---|---|---|
| Heroin (illicit) | 653 (89.0) | 88.2 | 93.3 | 0.041 |
| Inject | 342 (46.6) | 49.0 | 41.2 | 0.055 |
| Smoke | 272 (37.1) | 33.8 | 46.9 | 0.001 |
| Sniff or oral | 10 (1.4) | 1.1 | 2.1 | 0.190 |
| Other or don't know | 29 (4.0) | 4.3 | 3.1 | 0.410 |
| Crack cocaine (freebase) | 180 (24.5) | 22.5 | 31.8 | 0.012 |
↵a As a proportion of the total within sex.