title: High risks of HIV transmission for men who have sex with men--a comparison of risk factors of HIV infection among MSM associated with recruitment channels in 15 cities of China.
abstract: OBJECTIVE
  While the HIV epidemic varies greatly by region and population group throughout China, the HIV incidence among men who have sex with men (MSM) continues to rise at an alarmingly fast pace. We seek to analyze the risk factors associated with HIV infection among MSM recruited from different channels in large urban centers across China, in an attempt to shed light on the design of future targeted intervention strategies.
  
  
  METHODS
  A total of 33,684 MSM from 14 cities and one province were recruited from July to December 2011. Demographic (e.g. age, marital status, education) and behavioral (e.g. condom use, HIV testing history) data were collected using information collection cards. Blood samples were also collected to test for HIV and Syphilis.
  
  
  RESULTS
  Participants were recruited from five different channels, and all demonstrated distinct characteristics. The overall rate of positive HIV screening was 6.27% and the rate of syphilis infection was 6.50%. Participants recruited from bathhouses had the highest HIV (11.80%) and syphilis infection rates (11.20%). Participants who were infected with syphilis had the highest HIV-positive screening rate (13.75%; 95% CI OR, 2.33-3.06). living in the southwest region of the country (11.64%; OR=2.76, 95%CI OR 2.19-3.47), Being >20 years of age (P<0.001), living in the southwest region of the country (OR=2.76, 95%CI 2.19-3.47), not having sex with female over the previous 3 months (OR=1.27, 95%CI 1.09-1.48), no condom use during the last anal intercourse (OR=1.54, 95%CI 1.39-1.70) and other factors were all associated with a higher probability of having an HIV-positive test result.
  
  
  CONCLUSIONS
  Depending on the way they are recruited, more targeted interventions are required to prevent the spread of HIV/AIDS among MSM with different characteristics and behaviors. Results from this study could provide evidence for researchers to conduct further studies and policy-makers to establish more effective and strategic interventions for MSM in China.
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Jinlei
authors.initials: J
authors.lastname: Qi
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Dapeng
authors.initials: D
authors.lastname: Zhang
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Xiaojing
authors.initials: X
authors.lastname: Fu
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Chengmei
authors.initials: C
authors.lastname: Li
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Sining
authors.initials: S
authors.lastname: Meng
authors.affiliation: Bill & Melinda Gates foundation China Office, Beijing, China.
authors.forename: Min
authors.initials: M
authors.lastname: Dai
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.affiliation: National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Jiangping
authors.initials: J
authors.lastname: Sun
mesh_terms: D000328:Adult; D002681:China / Q000453:epidemiology; D002947:Cities; D017280:Condoms / Q000706:statistics & numerical data; D015658:HIV Infections / Q000453:epidemiology* / Q000208:ethnology / Q000635:transmission / Q000821:virology; D018451:Homosexuality, Male / Q000208:ethnology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012309:Risk-Taking; D012725:Sexual Behavior / Q000208:ethnology; D011795:Surveys and Questionnaires; D013587:Syphilis / Q000453:epidemiology* / Q000208:ethnology / Q000382:microbiology / Q000635:transmission; D014505:Urban Population
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