Univariate and multivariate analyses of condom-related outcomes and STI prevalence among FSW at follow-up compared with baseline
| Condom-related outcomes and STI prevalence | Baseline % (n=2312) | Follow-up % (n=2400) | Crude OR (95% CI) | Adjusted OR (95% CI) | p Value (Wald test) adjusted OR |
| Zero unprotected sex acts in past month with commercial clients | 58.3 | 76.3 | 2.30 (1.52 to 3.48) | 2.40 (1.85 to 3.11) | <0.001 |
| Condom use last sex act occasional clients | 82.9 | 88.0 | 1.51 (1.07 to 2.13) | 1.22 (0.89 to 1.66) | 0.2 |
| Condom use last sex act repeat clients | 66.1 | 84.1 | 2.71 (1.91 to 3.84) | 1.98 (1.58 to 2.48) | <0.001 |
| Condom use last sex act regular partner | 31.9 | 33.9 | 1.10 (0.57 to 2.11) | 1.07 (0.76 to 1.51) | 0.7 |
| HIV-1 infection | 19.6 | 16.4 | 0.80 (0.65 to 1.00) | 0.81 (0.67 to 0.99) | 0.04 |
| Syphilis | 10.2 | 8.7 | 0.84 (0.54 to 1.29) | 0.77 (0.57 to 1.04) | 0.09 |
| High-titre syphilis | 5.9 | 3.4 | 0.55 (0.35 to 0.88) | 0.53 (0.37 to 0.77) | 0.001 |
| Chlamydia infection | 6.5 | 5.6 | 0.85 (0.62 to 1.18) | 0.83 (0.62 to 1.11) | 0.2 |
| Gonorrhoea infection | 3.5 | 2.5 | 0.71 (0.45 to 1.11) | 0.63 (0.41 to 0.97) | 0.03 |
| Chlamydia and/or gonorrhoea infection | 8.9 | 7.0 | 0.77 (0.57 to 1.04) | 0.72 (0.54 to 0.94) | 0.02 |
Multivariate models were adjusted for the following variables: district, age, marital status, residency status, usual place of solicitation, age started sex work, charge per sex act, weekly sex work income, proportion of clients who were new and proportion of female sex workers (FSW) with regular partners.
STI, sexually transmitted infection.