Vulvar, vaginal, and perianal intraepithelial neoplasia in women with or at risk for human immunodeficiency virus.

OBJECTIVE: To compare the incidence of vulvar, vaginal, and perianal intraepithelial neoplasia among human immunodeficiency virus (HIV)-infected women with a group of well-matched high-risk HIV-uninfected controls.
METHODS: A total of 192 HIV-infected and 88 uninfected women at high risk for HIV were followed up prospectively in Providence, Rhode Island during a 6-year period. Pap tests and cervicovaginal lavage for human papillomavirus detection and typing were performed at baseline and every 6 months thereafter. All women referred for colposcopy underwent a full colposcopic evaluation, including the vulvar, vaginal, and perianal regions. Unadjusted hazard ratios with 95% confidence intervals were calculated for development of vulvar, vaginal, and perianal intraepithelial neoplasia using univariable Cox proportional hazards models. An incidence analysis was performed by calculating Kaplan-Meier survival curves for development of intraepithelial neoplasia.
RESULTS: At baseline, 3 (1.6%) of the 192 HIV-infected women and none of the 88 HIV-uninfected women had vulvar, vaginal, and perianal intraepithelial neoplasia. During the study, 16 of 189 (8.5%) HIV-infected women and 1 of 88 (1.1%) HIV-uninfected women developed vulvar, vaginal, and perianal intraepithelial neoplasia. The incidence of vulvar, vaginal, or anal intraepithelial neoplasia was 1.96 per 100 person years for the HIV-infected women and 0.26 per 100 person-years for the HIV-uninfected women (P = .03).
CONCLUSION: Human immunodeficiency virus-infected women had more vulvar, vaginal, and perianal intraepithelial lesions compared with HIV-uninfected women. Furthermore, the incidence rates were higher than has been found in HIV-infected women in other similar cohorts.