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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