Stepwise multivariate Cox proportional hazards regression for men and women
| Variable | Women (n=1640) hazard ratio (95% CI) p value | Men (n=6002) hazard ratio (95% CI) p value |
|---|---|---|
| Age ≤25 years | 1.51 (1.29 to 1.76) | |
| <0.001 | ||
| “Any” condom use | 1.57 (1.08 to 2.27) | |
| 0.018 | ||
| ≥2 sex partners past month | 1.63 (1.11 to 2.40) | 1.16 (1.00 to 1.35) |
| 0.013 | 0.051 | |
| Reason for visit | ||
| STD contact | 0.56 (0.35 to 0.89) | |
| 0.014 | ||
| Sexual contact ever with someone who engages in exchange sex | 1.51 (1.24 to 1.84) | |
| <0.001 |