title: Subsequent Sexual Risks Among Men Who Have Sex with Men May Differ by Sex of First Partner and Age at Sexual Debut: A Cross-Sectional Study in Beijing, China.
abstract: Sexual debut experience may influence HIV/sexual risks among men who have sex with men (MSM). We assessed associations between age of sexual debut and sex of debut partner with recent (past-3-month) sexual/HIV/syphilis risks among 3588 community-based Chinese MSM. Sexual debut with women was associated with more recent (condomless) insertive anal sex with men, more recent (condomless) vaginal sex, and more lifetime female partners. Sexual debut with men was associated with more recent (condomless) receptive anal sex with men and more lifetime male partners. All associations were strongest among those having first sex ≤18 years in both groups. Earlier sexual debut was associated with higher HIV/syphilis risk; HIV risk was higher with first sex with a man, but syphilis was higher with first sex with a woman. Earlier age of sexual debut is associated with greater HIV/syphilis and sexual risks, but MSM risk differs with first sex with women versus men.
authors.affiliation: Vanderbilt Institute for Global Health, Vanderbilt University Medical Center, Suite 750, 2525 West End Avenue, Nashville, TN, 37203, USA.
authors.forename: Yu
authors.identifier: http://orcid.org/0000-0002-2515-4431
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Vanderbilt Institute for Global Health, Vanderbilt University Medical Center, Suite 750, 2525 West End Avenue, Nashville, TN, 37203, USA.|Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
authors.forename: Han-Zhu
authors.initials: HZ
authors.lastname: Qian
authors.affiliation: Department of Health Behavior and Health Education, University of Michigan, Ann Arbor, MI, USA.
authors.forename: K Rivet
authors.initials: KR
authors.lastname: Amico
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, University of Maryland, College Park, MD, USA.
authors.forename: Hongjie
authors.initials: H
authors.lastname: Liu
authors.affiliation: Vanderbilt Institute for Global Health, Vanderbilt University Medical Center, Suite 750, 2525 West End Avenue, Nashville, TN, 37203, USA.
authors.forename: Lu
authors.initials: L
authors.lastname: Yin
authors.affiliation: State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Ruan
authors.affiliation: State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Yiming
authors.initials: Y
authors.lastname: Shao
authors.affiliation: Vanderbilt Institute for Global Health, Vanderbilt University Medical Center, Suite 750, 2525 West End Avenue, Nashville, TN, 37203, USA.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Vanderbilt Institute for Global Health, Vanderbilt University Medical Center, Suite 750, 2525 West End Avenue, Nashville, TN, 37203, USA. sten.vermund@vanderbilt.edu.|Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA. sten.vermund@vanderbilt.edu.
authors.forename: Sten H
authors.initials: SH
authors.lastname: Vermund
mesh_terms: D000328:Adult; D000367:Age Factors; D044466:Asian People / Q000523:psychology*; D002681:China / Q000453:epidemiology; D003075:Coitus; D003430:Cross-Sectional Studies; D005260:Female; D015658:HIV Infections; D018451:Homosexuality, Male / Q000523:psychology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D012309:Risk-Taking; D012747:Sexual Partners; D011795:Surveys and Questionnaires
keywords: Chinese men who have sex with men; HIV; Sexual debut; Sexual risk; Syphilis