深圳市龙岗区MSM人群艾滋病和梅毒感染状况分析

目的了解深圳市龙岗区男男性接触(MSM)人群行为特征和艾滋病、梅毒感染现状及干预服务需求,为调整干预措施提供依据。方法 2009~2011年对龙岗区各类同性恋场所MSM进行问卷调查,采集血液标本进行HIV抗体、梅毒和丙肝检测,并对检出HIV感染者进行跟踪随访。结果共调查MSM476名,外来人口占88.87%,最近六个月与同性发生肛交行为每次使用安全套有21.35%,与异性发生过性行为每次使用安全套仅有16.48%,艾滋病基本知识知晓率为82.47%,最近一年接受过健康干预服务占61.97%,影响接受更多服务的主要原因是担心泄露MSM身份引起社会歧视(占60.43%)。HIV抗体阳性率11.13%,并呈逐年上升趋势,梅毒阳性率9.87%,不同年龄组MSM人群HIV和梅毒感染率差异有统计学意义(P0.05);检出的HIV感染者随访一年中有37.74%发生过高危性行为,一年内失访率为69.81%。结论深圳市龙岗区MSM人群HIV、梅毒感染率较高,高危性行为发生率高,需扩大干预面、动用更多健康干预资源,创新健康干预模式,提高干预效能。

Analysis of syphilis and HIV infection status among MSM in Longgang District of Shenzhen

Objective To understand the behavioral characteristics of men who have sex with men（MSM）, the status of syphilis and HIV infection, as well as the requirements of intervention service in Longgang District, so as to provide scientific evidence for the adjustment of intervention strategies. Methods Data were collected by a self-administrated questionaire among 476 MSM, whose blood samples were taken for HIV, HCV and syphilis test during 2009-2011. HIV infected people were followed up. Results A total of 476 MSM were investigated, and the percentage of the floating population was 88.87%.21.35% of participants who had sex with men consistently used condom in recent six months, and 16.48% of participants who had sex with women consistently used condom. The awareness rate of HIV/AIDS was 82.47%. Those receiving health intervention services accounted for 61.97% in recent one year, and more service acceptance was mainly associated with social discrimination after exposing MSM identity. In addition, the infection rate of HIV and syphilis was 11.13% and 9.87%,respectively; and the infection rate of HIV increased annually. A significant（P 0.05） difference of infection rate of HIV and syphilis was observed among age groups, 37.74% of HIV infected people had high-risk sexual behavior, and 69.81% of HIV infection people was lost to be followed up. Conclusion The infection rate of HIV and syphilis and the incidence of highrisk sexual behavior among MSM in Longgang District of Shenzhen were higher, so intervention coverage be strengthened, more health intervention resources be employed, and health intervention strategies be innovated to increase the efficiency of intervention.