The percentages of samples containing high-, moderate-, or low-risk HPV types with CIN 3 are shown. Within each HPV risk group, a distinction was made between the proportion of samples containing HHV-7 and those in which HHV-7 was not detected. For high-risk HPV types, the P value is 0.09; for moderate-risk HPV types, the P value is 0.016; and for low-risk HPV types, the P value is 0.3.