Case-control study: crude and adjusted odds ratios for risk of having an infection (one or more of gonorrhoea, chlamydia, trichomoniasis, first episode genital herpes, first episode genital warts, infectious syphilis) at first visit
| Univariate | p Value | Multivariate | p Value | |
|---|---|---|---|---|
| Odds ratio (95% CI) | Odds ratio (95% CI) | |||
| Age (years) | 0.91 (0.87 to 0.95) | <0.001 | 0.95 (0.82 to 1.11) | NS |
| Age first sex work (years) | 0.92 (0.87 to 0.97) | 0.001 | 0.95 (0.81 to 1.10) | NS |
| Time in sex work (years) | 0.94 (0.88 to 1.00) | 0.06 | 0.95 (0.78 to 1.14) | NS |
| Any unprotected vaginal sex with boyfriend | 2.28 (0.94 to 5.53) | 0.07 | 1.54 (0.60 to 3.97) | NS |
| Any unprotected vaginal sex with clients | 2.10 (0.97 to 4.54) | 0.06 | 4.42 (1.51 to 12.95) | 0.007 |