Independent risk factors for HCV infection among 847 HIV infected MSM in Amsterdam
| HCV prevalence | OR (95% CI) | p | Adjusted OR (95% CI) | p | |
| Non-fisting, non-leather/rubber/lycra type | 40/566 (7.1%) | Ref. | <0.001 | Ref. | <0.001 |
| Non-fisting, leather/rubber/lycra type | 25/99 (25.3%) | 4.44 (2.55 to 7.74) | 4.22 (2.22 to 8.00) | ||
| Fisting, non- leather/rubber/lycra type | 18/95 (19.0%) | 3.07 (1.68 to 5.63) | 2.01 (1.00 to 4.04) | ||
| Fisting, leather/rubber/lycra type | 24/87 (27.6%) | 5.01 (2.83 to 8.85) | 2.71 (1.37 to 5.37) | ||
| Drug use (XTC, GHB, ketamine) | 73 / 333 (21.9%) | 3.96 (2.57 to 6.12) | <0.001 | 2.28 (1.33 to 3.92) | 0.002 |
| Receptive unprotected anal intercourse | 58 / 277 (21.0%) | 2.47 (1.62 to 3.77) | <0.001 | 1.60 (1.00 to 2.57) | 0.048 |
| Group sex | 70 / 339 (20.7%) | 3.31 (2.16 to 5.07) | <0.001 | 1.85 (1.09 to 3.15) | 0.022 |
| Syphilis coinfection | 7/28 (25.0%) | 2.02 (0.83 to 4.88) | 0.141 | 2.83 (1.01 to 7.91) | 0.046 |