Objective: To evaluate the effect of social media based behavioral intervention on promoting joint testing of HIV and syphilis in young men who have sex with men (MSM). Methods: After the recruitment, the participants who met the inclusion criteria were randomly divided (1∶1) into two groups, i.e. social media intervention group and control group. The control group was given routine voluntary counseling and testing (VCT) services. The intervention group was also given VCT services, besides; the comprehensive strategies through social media, including regular health education message and testing information sending, were given to them to strengthen the behavioral intervention. Follow up was conducted for the participants for 12 months after the intervention. The number and the proportion of young MSM receiving HIV and syphilis testing, and the reported proportion of the young MSM with sexually transmitted diseases (STD) symptoms between the intervention group and the control group were compared to evaluate the effect of the intervention. Results: A total of 315 young MSM were recruited (158 in the intervention group and 157 in the control group), in whom 248 young MSM completed the follow up. The follow-up rate was 78.7%. There was no significant difference in baseline characteristics between the intervention group and the control group (all P>0.05). The proportion of young MSM receiving more than one joint testing in the intervention group was slightly higher than that in the control group (53.2% vs. 48.4%, rate difference (RD): 4.8%, 95%CI: -7.5%-17.0%, P=0.448) without significant difference. However, in the young MSM who used condoms in the last anal sex, the proportion of those receiving more than one joint testing in the intervention group was higher than that in the control group (63.8% vs. 46.1%, RD: 17.7%, 95%CI: 1.5%-32.6%, P=0.035). In addition, the reported proportion of young MSM with STD symptoms in the intervention group was significantly lower than that in the control group (6.3% vs. 18.0%,RD: -11.7%, 95%CI: -20.6%- -3.0%, P=0.005). Conclusion: Compared with routine VCT, social media based behavioral intervention might promote joint HIV and syphilis testing in the young MSM who used condom in the study. It could significantly reduce the reporting proportion of STD symptoms, suggesting that this method can promote the AIDS and STD prevention related behaviors in young MSM.
目的： 评价基于社交媒体的行为干预能否有效促进青年MSM进行HIV/梅毒联合检测（联检）。 方法： 招募青年MSM作为研究对象，将符合纳入标准的研究对象按照1∶1的比例随机分为两组：社交媒体干预组和对照组。仅给予对照组自愿咨询检测（VCT）服务，给予干预组VCT服务并综合利用社交媒体定期发送健康教育和检测信息等手段加强其行为干预。随后对所有研究对象进行为期12个月的随访，比较干预组和对照组的HIV/梅毒联检次数、检测比例和性病（STD）症状出现情况等指标的差异，评价干预效果。 结果： 共纳入315例青年MSM（干预组158例，对照组157例），共计248人完成12个月随访，随访率为78.7%，干预组和对照组基线特征差异无统计学意义（均P>0.05）。干预组联检≥1次的比例略高于对照组（53.2%比48.4%，率差为4.8%，95%CI：-7.5%~17.0%，P=0.448），但差异无统计学意义。最近1次肛交使用安全套的青年MSM亚组中，干预组联检≥1次的比例高于对照组（63.8%比46.1%，率差为17.7%，95%CI：1.5%~32.6%，P=0.035）。此外，干预组报告出现STD症状比例显著低于对照组（6.3%比18.0%，率差为-11.7%，95%CI：-20.6%~-3.0%，P=0.005）。 结论： 与VCT服务相比，基于社交媒体的行为干预能促进使用安全套的青年MSM进行HIV/梅毒联检，显著降低STD症状发生比例，此方法可促进青年MSM预防艾滋病/性病相关行为改变。.