Table 2.
Number of incident HPV 6, 11, 16 and 18 infections with subsequent CIN lesions testing positive or negative for the HPV type observed in the incident infection
| HPV Type | CIN 1-Positive for type (% of CIN1) | CIN 1-Negative for type* (% of CIN 1) | CIN 2/3-Positive for type (% of CIN 2/3) | CIN 2/3-Negative for type* (% of CIN 2/3) |
| HPV 6 | 14 (43.8%) | 18 (56.2%) | 2 (28.6%) | 5 (71.4%) |
| HPV 11 | 0 (0.0%) | 3 (100.0%) | 0 (-) | 0 (-) |
| HPV 16 | 23 (51.1%) | 22 (48.9%) | 17 (85.0%) | 3 (15.0%) |
| HPV 18 | 5 (29.4%) | 12 (70.6%) | 4 (57.1%) | 3 (42.9%) |
| Total | 42 (43.3%) | 55 (56.7%) | 23 (67.6%) | 11 (32.4%) |
* Percentages negative for type refer to the proportion of CIN 1 and CIN 2/3 cases that tested negative for the HPV type listed in that row at left.
CIN = cervical intraepithelial neoplasia; HPV = human papillomavirus