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Table 4 Prevalence of Overall and Individual Human Papillomavirus (HPV) Types

From: Inconclusive role of human papillomavirus infection in breast cancer

HPV type

No. of studies

No. of cases

HPV prevalence (%) (95 % CI)

Total

38

2569

30.30(22.30–38.40)

High-riska

18

1169

35.50(25.00–46.10)

Low-riskb

9

616

11.70(5.80–17.70)

Presence of individual type in breast cancer cases

HPV-6

6

339

6.30(2.00–10.50)

HPV-11

4

134

17.20(1.00–33.30)

HPV-16

16

1029

30.70(20.50–41.00)

HPV-18

15

976

9.90(6.20–13.70)

HPV-31

3

334

3.00(0.00–6.10)

HPV-33

4

331

25.60(7.10–44.00)

  1. aHigh-risk types included HPV-16, −18, −31, −33, −35, −51, −56, −58, −59, −66,-70,-73and −82
  2. bLow-risk types included HPV-4,-6 ,-11,-24,-27,-57,and −87