南京市2008年MSM人群HIV危险因素分析

目的：了解南京市男男性接触人群（MSM）HIV感染的相关危险因素。方法：采用同伴推动抽样法（RDS），对南京市430名MSM进行问卷调查和血清学检测，用RDSAT5．6软件对HIV感染率进行点估计并导出权重系数，用SPSS16．0软件进行单因素和多因素logistic回归分析。结果：单因素logistic回归分析结果显示，年龄大、非南京户口、第一次与男性发生性关系年龄大、无保护性同性性行为、现症梅毒、性病相关症状是HIV感染的危险因素，未婚、文化程度高、第一个性伴为男性、有一定艾滋病相关知识是HIV感染的保护因素。多因素logistic回归分析结果显示，年龄大、户籍为本省其他地区、职业为商业服务或干部、公司职员、现症梅毒为HIV感染的危险因素，月收入高为HIV感染的保护因素。结论：在MSM人群中进行艾滋病干预，重点应降低性病及相关症状的发生，提高艾滋病知识知晓率和安全套使用率。

Analysis on the risk factors of AIDS in the MSM in Nanjing, 2008

Objective： To explore the risk factors of HIV infected in MSM population. Methods： RDS was employed to recruit 430 MSM who were all received behavioral and serological surveys from target population. RDSAT version 5.6 was used to calculate the point estimation of infection rate of HIV and the weights of HIV. Univariate and multivariate logistic regression analysis were carried out with SPSS 16.0 software. Results： The results of univariate logistic regression analysis implied that MSM with elder age, not having Nanjing hukou, elder age when had the first sex with men, unprotected anal intercourse, syphilis, symptoms of STDs are risk factors of AIDS, whereas single, high education, the first sexual partner is male and having good knowledge of AIDS are the protected factors. Multivariate logistic regression analysis revealed that elder age, living in other cities of Jiangsu Province, MB or White-collars or officials and syphilis are risk factors while high income is a protected factor. Conclusion： Decreasing the infection rates of STDs and relative symptoms, increasing the knowledge of AIDS and promoting condom use should be emphasized when taking interventions among MSM.