Background
Little is known about human papillomavirus (HPV) infection and
genotypes when considering both anatomic site and HIV status among men who
have sex with men (MSM) in low- and middle-income countries.
Methods
A cross-sectional study was conducted among MSM in Beijing, China.
HIV status was determined, and genital and anal HPV genotyping were
performed from respective swabs.
Results
Of 1,155 MSM, 817 (70.7%) had testing for genital (611;
52.9%) and/or anal (671; 58.1%) HPV. Preference for
insertive anal sex (adjusted odds ratio [aOR], 2.60;
95% confidence interval [CI], 1.42–4.75) and
syphilis (aOR, 1.50; 95% CI, 1.01–2.23) were associated with
genital HPV. Inconsistent condom use during receptive anal sex (aOR, 1.82;
95% CI, 1.17–2.84), and HIV seropositivity (aOR, 2.90;
95% CI, 1.91–4.42) were associated with anal HPV. Among 465
(40.3%) MSM with specimens from both anatomic sites, anal HPV
(68%) was more common than genital HPV (37.8%). Prevalence
of anal HPV was higher among HIV-infected than uninfected MSM
(P<0.01). Some oncogenic HPV types were more
commonly found at the anal site of HIV-infected MSM
(P<0.01).
Conclusions
HPV is highly prevalent among Chinese MSM. Anal HPV was more common
than genital HPV, and HIV seropositivity was associated with oncogenic HPV
types at the anal site.