[Analysis of human papillomavirus infection status and related factors among men who have sex with men in Tianjin].

Objective: The status quo and related factors of human papillomavirus (HPV) infection in multiple parts of men who have sex with men (MSM) in Tianjin were analyzed. Methods: Using the cross-sectional survey method, a total of 600 MSM were recruited in Tianjin from September to December 2023, including 200 (18-26 years old), 300 (27-45 years old), and 100 (≥46 years old) stratificaed by age group. Questionnaire survey was used to collect knowledge and behavioral information related to demography and STD prevention and treatment. Exfoliated cells from genital, perianal and oral cavity were collected for HPV typing detection. Logistic regression model was used to analyze the related factors of HPV infection. Results: The infection rate of HPV was 53.67% (322/600) in MSM, with high-risk type as 41.17% (247/600), low-risk type as 27.17% (163/600). The infection rate of HPV in both multiple and single types was 26.83% (161/600).The infection rates of genotypes covered by nine-valent HPV vaccine, quadrivalent HPV vaccine and bivalent HPV vaccine were 36.83% (221/600), 25.17% (151/600) and 9.50% (57/600), respectively.The infection rates of genital HPV, high-risk or low-risk types were 24.67% (148/600), 16.67% (100/600) and 11.00% (66/600), respectively. The infection rates of perianal HPV, high-risk or low-risk types were 42.00% (252/600), 30.17% (181/600) and 20.50% (123/600), respectively. The infection rates of oral HPV high-risk and low-risk types were 3.17% (19/600), 2.33% (14/600) and 1.17% (7/600), respectively. Divorce or widowhood (aOR=2.38, 95%CI: 1.26-4.50), history of homosexual anal intercourse in the past 6 months (aOR=2.28, 95%CI: 1.00-5.50), and use of dependent drugs (including new psychoactive substances) (aOR=1.62, 95%CI: 1.02-2.58) were risk factors for genital HPV infection. College degree/university degree or above (aOR=0.36, 95%CI: 0.16-0.81) was a protective factor for perianal HPV infection, and a history of drug dependence (aOR=1.85, 95%CI: 1.19-2.88) was a risk factor. Conclusions: MSM in Tianjin was a high-risk group for HPV infection, and the HPV infection in the perianal area was more severe than in the genital area and oral area.Marital status, education level, history of homosexual anal sex in the past 6 months, and history of drug dependence were related factors of HPV infection among MSM.