玉溪市和普洱市MSM人群沙眼衣原体和淋球菌感染现状及影响因素调查

Study on infection status and influencing factors of chlamydia trachomatis and neisseria gonorrhoeae among MSM in Yuxi and Pu’er

目的了解玉溪市和普洱市男男性行为(MSM)人群的沙眼衣原体和淋球菌感染现状及其影响因素,为性病的预防和控制提供依据。方法采用方便抽样方法招募MSM人群进行一对一问卷调查,采集尿液、咽拭子和直肠拭子进行沙眼衣原体和淋球菌核酸检测。采用Logistic回归模型分析沙眼衣原体和淋球菌感染的影响因素。结果共招募调查对象190名,沙眼衣原体总阳性率为15.3%,淋球菌总阳性率为12.1%;沙眼衣原体在尿道、直肠和咽部的感染率分别为10.1%、6.9%和1.1%,差异有统计学意义(P<0.01);淋球菌在尿道、直肠和咽部的感染率分别为2.1%、6.9%和6.3%,差异无统计学意义(P>0.05)。多因素Logistic回归分析显示,沙眼衣原体感染的危险因素包括最近一周肛交次数≥2次(OR=5.404)和淋球菌阳性(OR=8.338);淋球菌感染的危险因素包括年龄<20岁(OR=9.858)、沙眼衣原体阳性(OR=7.213)。结论在今后的艾滋病和性病防控工作中,应对MSM人群的沙眼衣原体和淋球菌进行筛查,并对其进行针对性干预。

Objective To understand the infection status and influencing factors of chlamydia trachomatis(CT) and neisseria gonorrhoeae(NG) among men who have sex with men(MSM) in Yuxi and Pu’er, and to provide evidence for prevention and control of sexually transmitted diseases.Methods Convenient sampling method was used to recruit MSM, and one-to-one questionnaire survey was conducted, urine, pharyngeal swabs and rectal swabs were collected to test CT and NG. The influencing factors of CT and NG infection were analyzed by logistic regression model. Results A total of 190 respondents were recruited, and the overall positive rate of CT and NG was 15.3% and 12.1%, respectively;the infection rate of CT in urethral, rectal and pharyngeal was 10.1%, 6.9% and 1.1%, respectively, the difference was statistically significant(P<0.01);the infection rate of NG in urethral, rectal and pharyngeal was 2.1%, 6.9% and 6.3%, respectively, and there was no statistic difference(P>0.05). Multivariate logistic regression analysis indicated that the risk factors of CT infection included anal sex more than 2 times in the last week(OR=5.404) and NG positive(OR=8.338);the risk factors of NG infection included younger than 20 years old(OR=9.858) and CT positive(OR=7.213). Conclusion In the prevention and control of HIV/AIDS and sexually transmitted diseases in the future, it is necessary to screen CT and NG among MSM, and carry out targeted intervention.