Univariate and multivariate analyses of STI prevalence, condom use and programme exposure at baseline and follow-up, according to usual place of solicitation
| Home (N=1652) (baseline/follow-up) | Brothel/lodge/Dabha (n=474) (baseline/follow-up) | Street/public places (n=2586) (baseline/follow-up) | ||
| HIV prevalence | % | 13.5/11.8 | 33.2/26.1 | 21.3/17.6 |
| Crude OR (95% CI) | 0.85 (0.58 to 1.26) | 0.71 (0.41 to 1.23) | 0.79 (0.60 to 1.05) | |
| Adjusted OR (95% CI) | 0.98 (0.60 to 1.58) | 0.77 (0.39 to 1.52) | 0.77 (0.55 to 1.01) | |
| High-titre syphilis | % | 2.1/2.7 | 3.8/2.3 | 8.8/4.0 |
| Crude OR (95% CI) | 1.31 (0.60 to 2.84) | 0.60 (0.13 to 2.74) | 0.43* (0.27 to 0.68) | |
| Adjusted OR (95% CI) | 1.12 (0.40 to 3.13) | 0.55 (0.16 to 1.88) | 0.30* (0.19 to 0.49) | |
| Chlamydia and/or gonorrhoea infection | % | 6.2/5.7 | 12.2/12.2 | 10.1/6.9 |
| Crude OR (95% CI) | 0.92 (0.55 to 1.53) | 0.99 (0.39 to 2.53) | 0.66† (0.46 to 0.94) | |
| Adjusted OR (95% CI) | 0.92 (0.50 to 1.69) | 1.18 (0.51 to 2.69) | 0.57* (0.38 to 0.87) | |
| Condom use at last sex with commercial client | % | 75.8/84.5 | 98.0/95.6 | 84.3/88.7 |
| Crude OR (95% CI) | 1.74* (1.24 to 2.45) | 0.49 (0.15 to 1.56) | 1.47 (0.89 to 2.43) | |
| Adjusted OR (95% CI) | 0.81 (0.51 to 1.29) | 0.63 (0.22 to 1.80) | 0.98 (0.56 to 1.71) | |
| Condom use at last sex with repeat client | % | 62.2/77.4 | 81.8/94.5 | 64.6/79.7 |
| Crude OR (95% CI) | 2.08* (1.48 to 2.93) | 3.82† (1.42 to 10.26) | 2.15* (1.49 to 3.10) | |
| Adjusted OR (95% CI) | 1.67† (1.03 to 2.71) | 5.82* (1.67 to 20.28) | 2.02* (1.45 to 2.81) | |
| Condom use at last sex with regular partner | % | 44.0/32.8 | 42.7/37.5 | 23.5/34.3 |
| Crude OR (95% CI) | 0.62† (0.40 to 0.97) | 0.81 (0.27 to 2.45) | 1.70 (0.77 to 3.78) | |
| Adjusted OR (95% CI) | 0.78 (0.42 to 1.45) | 2.55 (0.58 to 11.16) | 2.11† (1.00 to 4.46) | |
| Ever visited by a peer educator | % | 81.7/95.8 | 90.9/94.3 | 81.8/95.2 |
| Crude OR (95% CI) | 5.13* (2.77 to 9.48) | 1.65 (0.71 to 3.82) | 4.43* (2.72 to 7.21) | |
| Adjusted OR (95% CI) | 6.95* (4.21 to 11.46) | 4.59* (1.91 to 11.02) | 3.73* (2.44 to 5.71) | |
| Ever attended the drop-in centre | % | 26.4/73.7 | 30.0/62.3 | 36.3/80.9 |
| Crude OR (95% CI) | 7.78* (5.16 to 11.72) | 3.84* (2.07 to 7.13) | 7.44* (4.39 to 12.60) | |
| Adjusted OR (95% CI) | 10.46* (7.12 to 15.38) | 13.46* (5.97 to 30.32) | 8.82* (6.70 to 11.62) | |
| Ever attended the clinic | % | 66.2/84.5 | 76.7/74.7 | 68.2/87.2 |
| Crude OR (95% CI) | 2.80* (1.86 to 4.20) | 0.90 (0.50 to 1.63) | 3.18* (2.24 to 4.53) | |
| Adjusted OR (95% CI) | 3.43* (2.23 to 5.27) | 1.36 (0.72 to 2.57) | 2.92* (2.07 to 4.12) | |
| Ever received a ‘grey pack’ | % | 53.2/58.5 | 73.6/54.6 | 58.6/68.4 |
| Crude OR (95% CI) | 1.24 (0.91 to 1.70) | 0.43* (0.25 to 0.75) | 1.53* (1.16 to 2.01) | |
| Adjusted OR (95% CI) | 1.69* (1.18 to 2.42) | 0.47† (0.26 to 0.85) | 1.33 (0.94 to 1.90) | |
↵* p<0.01.
↵† p<0.05.
Multivariate models were adjusted for the following variables: district, age, marital status, residency status, age started sex work, charge per sex act, weekly sex work income, proportion of clients who were new and proportion of female sex workers with regular partners. In addition, the first six rows were adjusted for: ever visited by a peer educator, ever attended the drop in centre, ever attended the clinic and ever received a ‘grey pack’.
Odds ratios (OR) are in relation to follow-up versus baseline parameters.
STI, sexually transmitted infection.