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  • Title: Risk factors for anal HPV-16/18 infection in Mexican HIV-infected men who have sex with men.
    Author: Torres-Ibarra L, Conde-Glez CJ, Salmerón J, Palefsky J, Hernández-Nevares P, Sánchez-Alemán MA, Magis-Rodríguez C, Lazcano-Ponce E.
    Journal: Prev Med; 2014 Dec; 69():157-64. PubMed ID: 25251099.
    Abstract:
    OBJECTIVE: To describe the prevalence of specific HPV types among HIV-positive men who have sex with men (MSM), particularly the presence of HPV-16 and/or -18, and to determine the factors associated with anal HPV-16/18 infections. METHODS: This is a cross-sectional study from a baseline cohort of 525 HIV-positive MSM, who attended an HIV Clinic in Mexico City. Socio-demographic characteristics, sexual behaviors and HIV-related parameters were assessed. Anal samples were tested for HPV DNA using the Linear Array HPV genotyping assay. RESULTS: The overall prevalence of any HPV type in the anal canal among 446 participants was 93.1%. At least one oncogenic HPV type was detected in 72.2% of the subjects and HPV-16 and/or18 were detected in 30.7%. Additionally, 76.9% of patients were infected with multiple HPV types. Having more than 10 receptive sexual partners in the last 6months (OR=2.30; 95% CI 1.12-4.74) and a CD4 cell count ≤350cells/μL (OR=1.97; 95% CI 1.26-3.09) were factors positively associated with HPV-16/18 infection in the anal canal. CONCLUSION: Co-infection with HPV-16/18 and other oncogenic types are predominant in this group of HIV-positive MSM. The recognition of infection with specific oncogenic types will be of aid in designing future preventive strategies that target this high-risk population.
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