青岛市社区吸食新型毒品者的吸毒行为特征及安全套使用情况

Behavior characteristics and condom use among new-drug users in Qingdao community

目的了解青岛市社区吸食新型毒品者的人口学特征、吸毒行为、安全套使用，以及艾滋病病毒（HIV）、梅毒和丙型肝炎病毒（HCV）的感染情况，为开展行为干预提供依据。方法采取同伴推动抽样（RDS）方法进行横断面调查，问卷包括人口学特征、吸毒行为、安全套使用情况，采集血液标本检测HIV、HCV和梅毒抗体。结果共招募吸食新型毒品者324人，男性为主，文化程度较低。61.1％的吸食新型毒品者是3～5人聚集到一起吸毒，吸毒的场所以朋友或自己家里为主（占70．2％）。40．3％的吸毒者曾同时与多人发生过性行为，59．5％的吸毒者从来不使用安全套，每次都使用且一人一套的只有8人，占4．7％。Logistic回归分析显示：每周吸毒〉3次者安全套使用率明显低于每周吸毒〈3次者（OR=0．3；95％CI：0．1～0．7），做过HIV检测者安全套使用率明显高于未做过检测者（OR=5．5；95％CI：2．1～14．7）。结论青岛市社区吸食新型毒品者吸毒场所隐蔽，群体吸食后发生高危性行为的概率及梅毒感染率较高，但安全套使用率极低。需要多部门联合，全社会参与，共同应对新型毒品的流行。

Objective To understand the socialdemographic characteristics, drug and condom use behaviors, prevalence of HIV, syphilis and HCV among club drug users in a community setting, so as to provide scientific ba sis for behavior intervention. Conclusion We adopted the method of RDS to recruit subjects in Qingdao community to carry out epidemiological investigations. Information collected included demographics, drug use behaviors, con dom use, and HIV/syphilis/HCV infection status. Results Of the 324 participants, 61.1% took drug with 35 partners, 70.2% took drug in their house or friends.home, 40.3% have had group sex, and 59.5% never used con doms. Subjects in group sex with consistent condom use and one condom for one partner only accounted for 4.7%. Logistic regression analysis showed that the rate of condom use in subjects taking drug three times a week or more was lower than that under three times a week （OR = 0.3;95 % CI： 0.1 0.7）. The group taking a HIV test had higher rate of condom use than that not taking （OR=5.5, 95%CI： 2.114. 7）. Conclusion The newdrug taking places turned to be more hidden. Risky sexual behaviors and the rate of syphilis infection are much higher after tak ing drug with many people. And the rate of condom use is very low. Multiple departments and the whole society are needed to participate in coping with the popularity of new drugs.