Bivariate analysis of factors associated with sex trade work among 995 male IDUs between 1996 and 2003*
| Characteristic | Unadjusted odds ratio | GEE 95% CI | p Value |
|---|---|---|---|
| GEE, generalised estimating equation; CI, confidence interval. | |||
| *Based on 8046 study visits. | |||
| †Current. | |||
| ‡During the previous 6 months. | |||
| Age at enrolment (per year older) | 0.93 | 0.92 to 0.94 | <0.001 |
| HIV positive at enrolment (yes v no) | 1.70 | 1.39 to 2.07 | <0.001 |
| Incarceration‡ (yes v no) | 1.63 | 1.34 to 1.98 | <0.001 |
| Unstable housing† (yes v no) | 1.08 | 0.90 to 1.31 | 0.408 |
| Daily heroin injection‡ (yes v no) | 1.15 | 0.93 to 1.41 | 0.194 |
| Daily cocaine injection‡ (yes v no) | 1.67 | 1.36 to 2.04 | <0.001 |
| Daily crack smoking‡ (yes v no) | 1.49 | 1.19 to 1.87 | <0.001 |
| Borrowed syringes‡ (yes v no) | 2.06 | 1.66 to 2.56 | <0.001 |
| Lent syringes‡ (yes v no) | 1.68 | 1.33 to 2.13 | <0.001 |
| Unable to access addiction treatment‡ (yes v no) | 1.66 | 1.28 to 2.15 | <0.001 |
| On methadone therapy† (yes v no) | 0.73 | 0.58 to 0.93 | 0.011 |
| Unprotected intercourse with regular sex partner‡ (yes v no) | 1.13 | 0.86 to 1.50 | 0.386 |
| Unprotected intercourse with casual sex partner‡ (yes v no) | 0.53 | 0.43 to 0.66 | <0.001 |