重庆市男男性行为人群新型毒品使用现状及其影响因素分析

目的 了解男男性行为人群（men who have sex with men, MSM）新型毒品使用现状及其影响因素。方法 采用方便抽样的方法对重庆市MSM进行自填式匿名问卷调查，采用二分类非条件logistic回归对该人群新型毒品使用进行影响因素分析。结果 本研究共招募合格调查对象1 151例。调查对象以35岁以下青壮年、未婚、重庆户籍、高中以上文化程度、服务或个体职业及较高收入水平者为主。18.9%的调查对象报告近6个月使用过新型毒品，Rush为MSM最常使用的新型毒品，占17.7%。logistic回归显示，年龄≤35岁（OR = 2.232, 95% CI: 1.218～4.090）、月收入≥3 000元（OR = 1.652, 95% CI: 1.051～2.596）、性角色为被插入方（OR = 1.874, 95% CI: 1.154～3.043）或双重性角色（OR = 2.462, 95% CI: 1.612～3.761）、初次肛交年龄＜18岁（OR = 1.664, 95% CI: 1.144～2.422）及近6个月发生过群交性行为（OR = 13.597, 95% CI: 7.341～25.183）是MSM使用新型毒品的影响因素。结论 重庆市MSM使用新型毒品情况比较普遍，应根据使用人群的社会人口学及行为特征制定针对性的干预策略，从而降低该人群中艾滋病及其他性传播疾病的感染风险。

Recreational drug usage and influencing factors of men who have sex with men in Chongqing

Objective To understand the prevalence and influencing factors of recreational drug usage among men who have sex with men(MSM). Methods Convenience sampling method was used to recruit participants, and self-administered questionnaire survey was conducted anonymously at private rooms. Non-conditional logistic regression analysis was performed to identify factors correlated with recreational drug usage. Results A total of 1 151 eligible MSM were enrolled in the study. The majority of participants were 35 years old or younger, unmarried, local residents, with at least high school education, service providers or self-employed, and reported a monthly individual income of 3,000 yuan or more. Of the participants included,18.9%(218) reported having used at least one type of recreational drugs in the prior 6 months. Rush poppers were the most commonly used drug(17.7%) among MSM. Logistic regression analysis indicated that age≤35 years(OR=2.232, 95%CI:1.218-4.090), monthly income≥3 000 yuan(OR=1.652, 95%CI: 1.051-2.596), preferring receptive anal intercourse(OR=1.874, 95%CI: 1.154-3.043) and versatile anal intercourse(OR=2.462, 95%CI: 1.612-3.761), age at first anal intercourse<18 years(OR=1.664, 95%CI: 1.144-2.422) and engaging in group sex(OR=13.597, 95%CI: 7.341-25.183) were significantly associated with recreational drug usage. Conclusion Recreational drug use was common among MSM in Chongqing. Intervention strategy should be tailored based on the characteristics of recreational drug users and measures aiming to mitigate recreation-al drug usage should be taken to reduce infection of HIV and other sexually transmitted diseases.