Association between circumcision and location of warts in 519 men
| Circumcision status* | Distal penile warts (n=33) | Proximal penile warts (n=20) | ||
| n (%) | OR (95% CI) | n (%) | OR (95% CI) | |
| Uncircumcised (n=425) | 33 (7.8) | 8.22† (1.34 - 337.46) | 12 (2.8) | 0.31 (0.12 to 0.79) |
| Circumcised (n=94) | 0 (0) | 1 (ref) | 8 (8.5) | 1 (ref) |
*415 men did not have circumcision status recorded in the clinical records.
†1 unit was added to each cell count to calculate odds ratio of distal penile warts as there was a null value of 0 distal penile warts among circumcised men.