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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