HPV prevalence in vaginal lesions based on PCR or hybrid capture assays

	N	HPV (+)	Number of HPV types	HPV-16 (+)	Multiple HPV infections
Vaginal cancer	83	65.5 percent	2	55.4 percent	2.3 percent
VaIN 2,3	166	92.6 percent	14	65.8 percent	12.6 percent
VaIN 1	66	98.5 percent	21	17.9 percent	35 percent

HPV: human papillomavirus; PCR: polymerase chain reaction; VaIN: vaginal intraepithelial neoplasia.

Data from: Smith JS, Backes DM, Hootes BE, et al. Human papillomavirus type-distribution in vulvar and vaginal cancers and their associated precursors. Obstet Gynecol 2009; 113:917.

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HPV prevalence in vaginal lesions based on PCR or hybrid capture assays