| Risk factor for abnormal anal cytology | RR | (95% CI) |
| HIV infection | 3.2 | (1.3 to 7.5) |
| h/o anal intercourse | 2 | (1.3-3.1) |
| CD4<200 | 5.5 | (2.2 to 16) |
| Risk factor for abnormal anal cytology | RR | (95% CI) |
| HIV infection | 3.2 | (1.3 to 7.5) |
| h/o anal intercourse | 2 | (1.3-3.1) |
| CD4<200 | 5.5 | (2.2 to 16) |