|  | Yes | N (Total = 365) | Univariate Odds Ratio with 95% confidence interval | Mulitvariate Adjusted Odds Ratio with 95% confidence interval | |||
---|---|---|---|---|---|---|---|---|
Received prescribed substitute drug | Currently | 138 | 182 | 76% | 1.0 | Â | 1.0 | Â |
 | Previously | 94 | 147 | 64% | 0.6 | 0.4 – 0.9 | 0.5 | 0.3 – 0.9 |
 | Never | 15 | 36 | 42% | 0.2 | 0.1 – 0.5 | 0.3 | 0.1 – 0.7 |
Inject into groin last 4 weeks | No | 100 | 174 | 57% | 1.0 | Â | 1.0 | Â |
 | Yes | 147 | 191 | 77% | 2.5 | 1.6 – 3.9 | 2.1 | 1.3 – 3.4 |
Clean injecting site last 4 weeks | Never | 113 | 184 | 61% | 1.0 | Â | 1.0 | Â |
 | Sometimes | 58 | 85 | 68% | 1.3 | 0.8 – 2.3 | 1.4 | 0.8 – 2.6 |
 | Always | 76 | 96 | 79% | 2.4 | 1.3 – 4.2 | 2.5 | 1.4 – 4.6 |
Ever had voluntary confidential test for hepatitis C | Yes | 195 | 257 | 76% | 3.4 | 2.1 – 5.4 | 3.5 | 2.1 – 5.8 |
 | No | 52 | 108 | 48% | 1.0 |  | 1.0 |  |
Number of years injecting | <= 4 | 25 | 53 | 47% | 1.0 |  | †|  |
 | 5 – 9 | 80 | 120 | 67% | 2.2 | 1.2 – 4.3 |  |  |
 | 10 – 14 | 64 | 84 | 76% | 3.6 | 1.7 – 7.5 |  |  |
 | 15 + | 78 | 108 | 72% | 2.9 | 1.5 – 5.8 |  |  |
Inject into arm last 4 weeks | No | 72 | 94 | 77% | 1.0 |  | †|  |
 | Yes | 175 | 271 | 65% | 0.6 | 0.3 – 1.0 |  |  |
Ever had voluntary confidential test for HIV | No | 71 | 132 | 54% | 1.0 |  | †|  |
 | Yes | 176 | 233 | 76% | 2.7 | 1.7 – 4.2 |  |  |
Anti-HCV Positive | No | 80 | 134 | 60% | 1.0 |  | †|  |
 | Yes | 167 | 231 | 72% | 1.8 | 1.1 – 2.8 |  |  |