Table 2

 Bivariate analysis of factors associated with sex trade work among 995 male IDUs between 1996 and 2003*

CharacteristicUnadjusted odds ratioGEE 95% CIp Value
GEE, generalised estimating equation; CI, confidence interval.
*Based on 8046 study visits.
‡During the previous 6 months.
Age at enrolment (per year older)0.930.92 to 0.94<0.001
HIV positive at enrolment (yes v no)1.701.39 to 2.07<0.001
Incarceration‡ (yes v no)1.631.34 to 1.98<0.001
Unstable housing† (yes v no)1.080.90 to 1.310.408
Daily heroin injection‡ (yes v no)1.150.93 to 1.410.194
Daily cocaine injection‡ (yes v no)1.671.36 to 2.04<0.001
Daily crack smoking‡ (yes v no)1.491.19 to 1.87<0.001
Borrowed syringes‡ (yes v no)2.061.66 to 2.56<0.001
Lent syringes‡ (yes v no)1.681.33 to 2.13<0.001
Unable to access addiction treatment‡ (yes v no)1.661.28 to 2.15<0.001
On methadone therapy† (yes v no)0.730.58 to 0.930.011
Unprotected intercourse with regular sex partner‡ (yes v no)1.130.86 to 1.500.386
Unprotected intercourse with casual sex partner‡ (yes v no)0.530.43 to 0.66<0.001