Human papillomavirus infection in anal ISCC | HIV-infected (n = 8)* | Non-HIV-infected (n = 21)* |
Any HPV infection, n (%) | 7** (87.5) | 16 (76.2) |
HPV-16, n (%) |
|
|
Single-type | 3 (37.5) | 14 (66.7%) |
Multiple-type | 1a (12.5) | 0 |
HPV-18, n (%) |
|
|
Single-type | 0 | 1 (4.8) |
Multiple-type | 0 | 0 |
Other high-risk HPV, n (%) |
|
|
Single-type (excluding 16 and 18) | 2b (25) | 1d (4.8) |
Multiple-type (excluding 16 and 18) | 1c (12.5) | 0 |
Low-risk HPV, n (%) |
|
|
Multiple-type (containing HPV-6) | 1c (12.5) | 0 |