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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

From: Progression and regression of incident cervical HPV 6, 11, 16 and 18 infections in young women

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%)
  1. * 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.
  2. CIN = cervical intraepithelial neoplasia; HPV = human papillomavirus