Skip to main content

Table 3 Type-specific persistence, regression and progression of incident HPV 6, 11, 16, 18 infections

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

  Proportion Persisting Without CIN Due to Type (95% CI) Proportion for Which Type Regressed (95% CI) Proportion Progressed to CIN 1 Due to Type (95% CI) Proportion Progressed to CIN 2 Due to Type (95% CI) Proportion Progressed to CIN 3 Due To Type (95% CI)
HPV 6 (n = 103)      
   12 Months 26.0 (17.5, 35.0) 62.3 (52.9, 71.8) 9.6 (4.0, 15.5) 2.1 (0.0, 5.5) 0.0 (-)
   24 Months 0.0 (-) 84.0 (75.5, 91.3) 13.9 (6.7, 21.1) 2.1 (0.0, 5.5) 0.0 (-)
   36 Months 0.0 (-) 84.0 (75.5, 91.3) 13.9 (6.7, 21.1) 2.1 (0.0, 5.5) 0.0 (-)
HPV 11 (n = 13)      
   12 Months 14.6 (0.0, 42.9) 85.4 (57.1, 100.0) 0.0 (-) 0.0 (-) 0.0 (-)
   24 Months 0.0 (-) 100.0 (-) 0.0 (-) 0.0 (-) 0.0 (-)
   36 Months 0.0 (-) 100.0 (-) 0.0 (-) 0.0 (-) 0.0 (-)
HPV 16 (n = 142)      
   12 Months 47.2 (37.9, 56.6) 35.4 (27.3, 44.5) 10.5 (5.7, 16.5) 4.5 (1.0, 8.6) 2.4 (0.0, 5.5)
   24 Months 15.8 (8.6, 24.8) 53.0 (43.5, 63.2) 18.3 (11.5, 26.0) 9.1 (3.8, 14.8) 3.8 (0.8, 8.2)
   36 Months 0.0 (0.0, 7.1) 62.8 (50.0, 73.1) 20.7 (12.1, 29.6) 9.1 (3.8, 14.8) 7.4 (1.9, 14.0)
HPV 18 (n = 62)      
   12 Months 52.9 (38.9, 67.1) 34.8 (22.3, 48.2) 6.8 (1.6, 13.7) 5.5 (0.0, 12.2) 0.0 (-)
   24 Months 16.3 (5.3, 28.7) 66.0 (51.4, 79.0) 9.5 (1.9, 18.5) 5.5 (0.0, 12.2) 2.7 (0.0, 9.6)
   36 Months 8.2 (0.0, 23.1) 74.1 (55.9, 89.5) 9.5 (1.9, 18.5) 5.5 (0.0, 12.2) 2.7 (0.0, 9.6)
  1. CIN = cervical intraepithelial neoplasia; HPV = human papillomavirus; CI = confidence interval