Risk factors for anal cancer: N = 26.
| FACTORS | N (%) |
|---|---|
| HIV infection | 2 (8) |
| Organ or bone marrow transplant | 2 (8) |
| Sexually transmitted infection | 3 (12) |
| Anal or genital warts | 6 (23) |
| Anal-receptive sex | 9 (35) |
| Sexual orientation | |
| • Heterosexual | 24 (92) |
| • Homosexual | 1 (4) |
| • Bisexual | 1 (4) |
| Self-reported lifetime sexual partners | |
| • 1–5 | 15 (58) |
| • 5–10 | 5 (19) |
| • 10–20 | 3 (12) |
| • 20–50 | 1 (4) |
| • > 50 | 2 (8) |