Abstract: Background　In recent years，a number of global positioning system（GPS）-equipped smartphone applications（App） designed to serve men who have sex with men（MSM） have been developed and achieved great popularity in this population.Increased use of these App may facilitate finding casual sexual partners，resulting in unsafe sexual practices.Objective　The purpose of this systematic review was to summarize the evidence of the use of MSM App and associated sexual behaviors and sexually transmitted infections（STI） in MSM population.Methods　Databases of PubMed，Wanfang Data Knowledge Service Platform and CNKI were searched for articles included between 2005 and 2017 about the use of App and associated sexual health or behaviors in MSM population，and studies concerning sexual behaviors and STI in MSM who use App and those do not.Data about number of male sexual partners，group and unprotected sexual practices，as well as testing and definite diagnosis of STI were extracted from the eligible studies.Results　Twenty-three articles concerning 21 studies were included.App-users were more likely to have more than 5 male sex partners in the past 12 months than non-users.Compared with non-users（8.5%），App-users（10.9% to 13.2%） reported engaging in more group sexual practices in the last 6 months.However，one study found that App-users were less likely to have group sexual practices than non-users in the past 12 months（the prevalence was 8.8% and 10.3%，respectively）．The prevalence of unprotected sexual practices in the past 6 months among App-users ranged from 31.9% to 50.5%，while that of non-users ranged from 26.3% to 35.6%.Compared with non-users（32.6%），App-users（29.9% to 88.6%） were more likely to have lifetime STI testing.The self-reported prevalence of prior diagnosis of STI among App-users ranged from 11.9% to 51.1%，while that of non-users was 23.2%.Conclusion　The increase in MSM using these App may produce more adverse effects on sexual health.

Key words: Sexually transmitted diseases；Homosexuality, male；Geosocial networking application；Smartphone applications；Systematic review

摘要： 背景　近年来，随着智能手机的蓬勃发展，一些搭载在智能手机上，具有地理定位功能的，专门服务于男男性接触者（MSM）的同志社交软件（App）也逐渐发展并在MSM中受到了很大的欢迎。频繁使用这些App可能更方便MSM寻找性伴，从而导致更多性行为。目的　本研究就MSM人群App的使用和性行为特征、性传播疾病（STI）的关系做一系统综述。方法　计算机检索PubMed、万方数据知识服务平台和中国知网中关于MSM人群在智能手机上App的使用和性健康或性行为的关系，或MSM人群App用户和非App用户性行为特征、STI比较的研究，检索时间为2005—2017年。提取男性伴数量、群交性行为、无保护性行为及STI检测及确诊的相关数据。结果　共纳入23篇文献，21项研究。App用户过去12个月拥有5个以上男性伴的比例大于非App用户。过去6个月App用户有群交性行为者占10.9%~13.2%，高于非App用户（8.5%）。但也有研究显示App用户（8.8%）过去12个月有群交性行为的比例低于非App用户（10.3%）。过去6个月，App用户参与无保护性行为的比例占31.9%~50.5%，而非App用户为26.3%~35.6%。App用户既往STI检测率为29.9%~88.6%，非App用户为32.6%。App用户STI感染率为11.9%~51.1%，非App用户为23.2%。结论　较多地使用App可能对MSM人群的性健康产生不良影响。

关键词: 性传播疾病；同性恋, 男性；应用程序；社交软件；系统综述