title: Sexual risk behaviors and HIV infection among men who have sex with men who use the internet in Beijing and Urumqi, China.
abstract: OBJECTIVE
  To assess HIV and syphilis infections among men who have sex with men who use the internet (MSMUI) and their risk behaviors.
  
  
  METHODS
  In 2007, 429 MSMUI were recruited via the internet in Beijing and Urumqi, China. A questionnaire was administered, and a blood specimen was collected and tested for HIV and syphilis.
  
  
  RESULTS
  Median age of participants was 25 years. Median number of lifetime sexual partners was 10. 90.7% ever had sex with a cyber friend. Rates of condom use in the last oral, insertive, and receptive anal sex were 9.1%, 66.3%, and 60.4%, respectively. Infection rates of HIV, syphilis, and HIV/syphilis coinfection were 4.8%, 11.4%, and 1.7%, respectively. Factors associated with HIV infection were being < or =24 years [odds ratio (OR) = 2.85, 95% confidence interval (CI): 1.05 to 7.75], syphilis positive (OR = 4.78, 95% CI: 1.68 to 13.58), used non-water-based liquid as lubricant (OR = 8.03, 95% CI: 1.03 to 62.52), and having bleeding gums or oral ulcers during condom-free oral sex (OR = 3.17, 95% CI: 1.13 to 8.88).
  
  
  CONCLUSIONS
  MSMUI engage in high-risk sexual behaviors and have a high prevalence of HIV and syphilis infections. The internet is the predominant venue for the majority of MSMUI to find sexual partners. It is urgent to implement effective intervention programs targeting this group.
authors.affiliation: National Center for AIDS/STD Control and Prevention, Beijing, China.
authors.forename: Huachun
authors.initials: H
authors.lastname: Zou
authors.forename: Zunyou
authors.initials: Z
authors.lastname: Wu
authors.forename: Jianping
authors.initials: J
authors.lastname: Yu
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: Muhtar
authors.initials: M
authors.lastname: Ablimit
authors.forename: Fan
authors.initials: F
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Pang
authors.forename: Naomi
authors.initials: N
authors.lastname: Juniper
mesh_terms: D000293:Adolescent; D000328:Adult; D002681:China / Q000453:epidemiology; D017280:Condoms; D003625:Data Collection; D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D018451:Homosexuality, Male; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D015995:Prevalence; D012307:Risk Factors; D021841:Safe Sex; D011795:Surveys and Questionnaires; D013587:Syphilis / Q000453:epidemiology; D055815:Young Adult