绵阳市男男性行为者吸毒行为与HIV感染及相关行为的关系研究

Analysis on relationship of drug use behavior and HIV infection and related behaviors among men who have sex with men

目的了解绵阳市（Men who have sex with men，MSM）吸毒行为及与艾滋病病毒（HumanIm．munodeficiency Virus，HIV）感染和相关行为关系。方法采用滚雪球抽样法，男男性行为者知情同意下在固定场所进行招募和自填式匿名调查。结果在该市5县、2区、1市合格调查的820人中，2．9％有吸毒行为，其中静脉注射为0．2％。不同地区吸毒行为差异有统计学意义（拟然比X2=57．175，P=0．000），其中江油市最高为12．4％。有吸毒行为者HIV／梅毒感染率为12．5％／13．6％。单因素分析年龄（X2=6．948，P=0．031）、近1周肛交次数（x2=18．391，P=0．000）、近6月商业性行为（x2=10．685，P=0．001）、近1次商业性行为保护性（x2=4．186，P=0．041）、近6月男性肛交保护性（x2=15．314，P=0．000）、近1年诊断过性病（x2=82．753，P=0．000）、近1年做过HIV检测（x2=4．531，P=0．033）与吸毒行为相关。多因素分析近1周肛交次数、近6月男性肛交保护性、近1年诊断过性病对MSM人群吸毒行为有影响，近1周肛交次数≥2、近6月有无保护性行为、近1年诊断过性病者吸毒比例较高。结论该市个别地区MSM人群吸食新型毒品达到较高水平，促进了该人群HIV高危行为发生，其HIV感染风险增高。在HIV防治中应结合开展降低毒品危害干预。

Objective To find the relationship of drug use behavior and human immunodefieieney virus （HIV） infection and related behaviors among men who have sex with men（MSM） in Mianyang. Methods To a- dopt the Snowball-sampling through which MSM are informed consent and recruited anonymously to investigate by self-administer in a fixed place. Results In 820 cases of qualified survey in five counties, two districts and one city, which drug use behavior was 2.9% , including intravenous injection of 0.2% Different areas of drug use be- havior difference was statistically significant （likelihood ratio X2 = 57. 175, P= 0. 000） ,which Jiangyou was up to 12.4%. The rate of HIV / syphilis infection among drug users was 12.5%/13.6%. Single factor analysis： age （ X2 = 6. 838, P = 0. 033 ） , anal sex number in last week （ X2 = 18. 391, P = 0. 000） , commercial sex in last 6 months （X2 = 10. 658, P = 0.001 ）, the last commercial sex being projective（ X2 = 4. 186, P = 0.041 ）, in the last 6 months male anal sex being projective （X2 = 15.314, P = 0. 000） , in recent year been diagnosed with venereal disease（ X2 = 82. 753, P=0. 000）, doing an HIV test the recent year（ X2 =4. 531, P = 0.033 ）and drug use be- havior was of a relationship. Logistic regression analysis showed that independent factors of MSM in drug use be- havior were anal sex number in last week, in the last 6 months male anal sex being projective, in recent year been diagnosed with venereal disease. Those people who did anal sex more than 2 times in last week, had unprotected sex behaviors in last 6 months, in recent year had been diagnosed with venereal disease had a higher drug addicts proportion. Conclusion Drug use behavior of MSM population in individual areas of the city reached a high level which promote the occurrence of HIV risk behavior, increased risk of HIV infection.