title: Prevalence of high-risky behaviors in transmission of HIV among high school and college student MSM in China: a meta-analysis.
abstract: BACKGROUND
  The aim of this study was to investigate the prevalence of high-risky behaviors, such as unprotected anal intercourse (UAI) in the last 6 months, condom using in their last homosexual anal intercourse, No. of male partners in the last 6 months among high school and college male students who have sex with men (MSM) in China.
  
  
  METHODS
  The relevant trials were retrieved up to June 2015 from several public databases, and a meta-analysis was conducted according to the published studies. The estimated rate and its 95 % confidence intervals (CI) of the relevant indexes among high school and college student MSM were collected and calculated using a fixed-effects model (the Mantel-Haenszel method) or a random-effects model (the DerSimonian and Laird method) when appropriate.
  
  
  RESULTS
  A total of 15 studies (18 research data), including 3297 student MSM, were performed in this meta-analysis. The overall results showed that the rate of student MSM who reported having had UAI in the last 6 months was 65.2 % (95 % CI = 60.2 % to 70.1 %), the prevalence of student MSM having more than one male partner in the last 6 months was 58.2 % (95 % CI = 51.1 % to 65.4 %), the rate of student MSM who reported using a condom in their last homosexual anal intercourse experience was 57.5 % (95 % CI = 49.8 % to 65.1 %), the prevalence of student MSM who were infected with HIV was 3.8 % (95 % CI = 2.5 % to 5.1 %), and the rate of student MSM who were infected with syphilis was 4.6 % (95 % CI = 3.8 % to 5.4 %).
  
  
  CONCLUSIONS
  There are high UAI prevalence and low condom using rate in the last homosexual anal intercourse experience among high school and college student MSM in China, and corresponding control measures for this group and more effective health education of student MSM are required to prevent HIV or sexually transmitted diseases from spreading to the general population.
authors.affiliation: Huzhou Center for Disease Control and Prevention, Huzhou, 313000, Zhejiang Province, China. yzhr91@126.com.
authors.forename: Zhongrong
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Anhui Provincial Family Planning Institute of Science and Technology, Hefei, 230000, Anhui Province, China. pizi8106@163.com.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Huang
authors.affiliation: Huzhou Center for Disease Control and Prevention, Huzhou, 313000, Zhejiang Province, China. hzjkazb@126.com.
authors.forename: Zhengquan
authors.initials: Z
authors.lastname: Dong
authors.affiliation: Huzhou Center for Disease Control and Prevention, Huzhou, 313000, Zhejiang Province, China. cdc633@126.com.
authors.forename: Sichao
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Huzhou Center for Disease Control and Prevention, Huzhou, 313000, Zhejiang Province, China. hanjk678@163.com.
authors.forename: Jiankang
authors.initials: J
authors.lastname: Han
authors.affiliation: Huzhou Center for Disease Control and Prevention, Huzhou, 313000, Zhejiang Province, China. hzjkajk@163.com.
authors.forename: Meihua
authors.initials: M
authors.lastname: Jin
mesh_terms: D000293:Adolescent; D000328:Adult; D002681:China / Q000453:epidemiology; D015658:HIV Infections / Q000453:epidemiology* / Q000635:transmission; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D015995:Prevalence; D012309:Risk-Taking; D012725:Sexual Behavior; D013587:Syphilis / Q000453:epidemiology; D055815:Young Adult