Sequential Acquisition of Anal Human Papillomavirus (HPV) Infection Following Genital Infection Among Men Who Have Sex With Women: The HPV Infection in Men (HIM) Study. J Infect Dis 2016 Oct 15;214(8):1180-7
Date
08/05/2016Pubmed ID
27489298Pubmed Central ID
PMC5034951DOI
10.1093/infdis/jiw334Scopus ID
2-s2.0-84990928865 (requires institutional sign-in at Scopus site) 27 CitationsAbstract
BACKGROUND: The purpose of this study was to assess the risk of sequential acquisition of anal human papillomavirus (HPV) infection following a type-specific genital HPV infection for the 9-valent vaccine HPV types and investigate factors associated with sequential infection among men who have sex with women (MSW).
METHODS: Genital and anal specimens were available for 1348 MSW participants, and HPV genotypes were detected using the Roche Linear Array assay. Sequential risk of anal HPV infection was assessed using hazard ratios (HRs) among men with prior genital infection, compared with men with no prior genital infection, in individual HPV type and grouped HPV analyses.
RESULTS: In individual analyses, men with prior HPV 16 genital infections had a significantly higher risk of subsequent anal HPV 16 infections (HR, 4.63; 95% confidence interval [CI], 1.41-15.23). In grouped analyses, a significantly higher risk of sequential type-specific anal HPV infections was observed for any of the 9 types (adjusted HR, 2.80; 95% CI, 1.32-5.99), high-risk types (adjusted HR, 2.65; 95% CI, 1.26, 5.55), and low-risk types (adjusted HR, 5.89; 95% CI, 1.29, 27.01).
CONCLUSIONS: MSW with prior genital HPV infections had a higher risk of a subsequent type-specific anal infection. The higher risk was not explained by sexual intercourse with female partners. Autoinoculation is a possible mechanism for the observed association.
Author List
Pamnani SJ, Nyitray AG, Abrahamsen M, Rollison DE, Villa LL, Lazcano-Ponce E, Huang Y, Borenstein A, Giuliano ARAuthor
Alan Nyitray PhD Associate Professor in the Psychiatry and Behavioral Medicine department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Anal Canal
Anus Diseases
Coitus
Heterosexuality
Human papillomavirus 16
Humans
Male
Middle Aged
Papillomavirus Infections
Risk Factors
Young Adult