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Background.  Human papillomavirus (HPV) causes a spectrum of disease, ranging from warts to cancer. Prevalence, incidence, and factors associated with anogenital warts in East African men are unknown. Methods.  Kenyan men reporting high-risk sexual behavior were inspected for anogenital warts at enrollment and follow-up visits. Logistic regression was performed to identify associations with anogenital warts at baseline. Cox regression was performed to analyze predictors of incident anogenital warts, and Kaplan-Meier curves were used to estimate clearance. Results.  Baseline anogenital wart prevalence in 1137 men was 2.9% (95% confidence interval [CI], 2.0%-4.0%) overall, 2.0% in human immunodeficiency virus (HIV)-uninfected men, and 9.4% in HIV-1-infected men (adjusted odds ratio, 5.43; 95% CI, 2.03-11.29). Over a median of 1.4 years, anogenital wart incidence among 1104 men was 5.3 (95% CI, 4.3-6.5) per 100 person-years. Having HIV-1 infection at baseline (adjusted hazard ratio [aHR], 1.66; 95% CI, 1.01-2.72) or a genital syndrome during follow-up (aHR, 4.78; 95% CI, 3.03-7.56) was associated with increased wart incidence. Wart clearance was lower in HIV-1-infected men (log-rank P<.001). Conclusions.  Anogenital wart prevalence and incidence were increased in HIV-1-infected men, and anogenital warts co-occurred with other genital syndromes. Quadrivalent HPV vaccination should be recommended for young men in settings with high HIV-1 prevalence.

Original publication

DOI

10.1093/ofid/ofv070

Type

Journal article

Journal

Open Forum Infect Dis

Publication Date

04/2015

Volume

2

Keywords

HIV-1, HPV, Kenya, MSM, condylomata acuminata, genital warts, incidence, men