Table 2. Relative Hazards of Time to HCV Infection in Young IDUs Stratified by Age Group.
| Unadjusted Relative Hazard (95% Confidence Interval) |
||
|---|---|---|
| Youths Aged 14 - 19 y |
Youths Aged 20 - 24 y |
|
| Age | 1.17 (0.78-1.75) | 0.91 (0.65-1.28) |
| Female sex | 0.63 (0.26-1.57) | 2.11 (0.96-4.67) |
| Aboriginal ethnicity | 0.44 (0.10-1.87) | 1.61 (0.69-3.74) |
| Survival sex worka | 2.94 (1.23-7.05) | 2.94 (1.28-6.74) |
| Unstable housinga | 2.14 (0.88-5.21) | 1.46 (0.63-3.36) |
| Residing in IDU epicentera | 2.09 (0.86-5.04) | 4.06 (1.59-10.36) |
| Unprotected sex (inconsistent condom use)a |
1.67 (0.70-3.98) | 0.80 (0.36-1.79) |
| Receptive syringe sharinga | 2.75 (1.07-7.10) | 1.75 (0.76-4.02) |
| Daily heroin injectiona | 1.32 (0.52-3.37) | 1.90 (0.85-4.25) |
| Daily cocaine injectiona | 1.23 (0.47-3.20) | 3.00 (1.19-7.40) |
| Daily crystal methamphetamine injectiona |
1.21 (0.16-9.19) | 0.38 (0.05-2.80) |
| Daily crack cocaine smokinga | 0.85 (0.29-2.54) | 1.52 (0.67-3.47) |
Abbreviations: HCV, hepatitis C virus; IDU, injecting drug user
a
Refers to behaviors and patterns in the past 6 months. All analyses were restricted to HCV-negative youths (n= 179) who had at least 1 follow-up visit (n = 127).