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Table 3 Prevalence of high risk-HPV in the study population according to anatomical sites (N = 126)

From: Prevalence of oncogenic human papillomavirus genotypes in patients diagnosed with anogenital malignancies in Botswana

   Anatomical Site/HPV type
   Anal n = 21 Penile n = 31 Vulvar n = 74 All sites n = 126 P-valueb
All hr.-HPV* HPV+ 13 13 42 68 0.274
HPV- 8 18 32 58  
Total 21 31 74 126  
% 61.9 41.9 56.8 54.0  
HPV 16 only HPV 16+ 8 5 34 47  
HPV 16- 5 8 8 21  
Total 13 13 42 68 0.016
% 61.5 38.5 81.0 69.1  
Other hr.-HPV Only Other hr.-HPV+ 5 6 8 19  
Other hr.-HPV- 8 7 34 49  
Total 13 13 42 68 0.115
% 38.5 46.2 19.0 27.9  
HPV 16 + Other hr.-HPV Co-Infection Co-Infection 0 2 0 2  
No Co-Infection 13 11 42 66  
Total 13 13 42 68 0.068
% 0 15.4 0 2.9  
  1. *HPV 18 was not detected in this study population
  2. aFisher’s exact p-value for comparison of proportion with hr.-HPV by anatomical site
  3. bFisher’s exact p-value for comparison of proportion with HPV 16 only by anatomical site