Table 1 Prevalence of HPV genotypes in invasive squamous vulvar carcinoma cases

From: Distribution of human papillomavirus genotypes in invasive squamous carcinoma of the vulva

 

Cases (n)

Frequency (%)

HPV-positive cases

81

69.8a

All cases with b

  

 High-risk HPV(s)

78

96.3

 HPV16

65

80.2

 HPV 33

12

14.8

 HPV 45

4

4.9

 HPV 52

3

3.7

 HPV 18

2

2.5

 Low-risk HPV

11

13.6

 Multiple HPV types

14

17.3

 Multiple HPV types, including HPV 16

12

14.8

Cases only with

 High-risk HPV(s)

70

86.4

 Low-risk HPV

3

3.7

 Single HPV type

68

83.9

  1. aExpressed as percentage of total cases (n=116). All other frequencies are expressed as a percentage of HPV-positive cases (n=81).
  2. bHigh-risk HPV cases reflect each time that the genotype was detected. Multiple infections may therefore be counted more than once.
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