Objective: To understand the characteristics and associated factors of newly reported HIV/AIDS cases with non-marital or non-commercial heterosexual transmission, in Guangxi Zhuang Autonomous Region (Guangxi), 2015-2018. Methods: Information of newly reported HIV/AIDS cases aged ≥18 years in Guangxi between 2015 and 2018 was collected from the National Comprehensive HIV/AIDS Information System. Unconditional logistic regression model was used to access those factors that were associated with HIV infections through non-marital or non-commercial heterosexual contact. Results: Between 2015 and 2018, a total number of 35 497 HIV/AIDS cases, aged ≥18 years were newly reported in Guangxi. Among them, 32 648 (92.0%) were infected heterosexually while 10 500 were infected through non-marital or non-commercial heterosexual behavior. Non-marital or non-commercial heterosexual transmission accounted for 29.6% (10 500/35 497) of the newly reported HIV/AIDS cases, and 32.2% (10 500/32 648) of those with heterosexual transmission. Males counted for 53.5% (5 617/10 500) of non-marital or non-commercial heterosexual transmission and males to females ratio was 1.2∶1 (5 617∶4 883). Those married or had regular sexual partners counted for 55.9% (5 873/10 500). Commercial heterosexual transmission appeared the main mode of HIV transmission for males (64.4%,16 516/25 633) while main mode for females was non-marital or non-commercial heterosexual transmission and counted for 49.5% (4 883/9 864). Results from the multivariate logistic regression analysis showed that adjusted OR of female HIV/AIDS infected HIV via non-marital or non-commercial heterosexual transmission, was 3.98 times (95%CI: 3.78-4.20) hight than that of males. Among the group aged<50 years and the aged 50-59 years, the adjusted ORs were 1.35 times (95%CI: 1.27-1.44) and 1.13 times (95%CI: 1.05-1.21) hight than that of aged ≥60 years. Those who were single/divorced/widowed, the adjusted OR was 1.53 times (95%CI: 1.45-1.61) hight than that of those married/regular partners. Those with junior high school education, high school education and above the adjusted ORs were 1.22 times (95%CI: 1.16-1.29) and 1.18 times (95%CI: 1.10-1.27), compared to those only with education levels of primary school or below. Conclusions: The number of HIV/AIDS cases via non-marital or non-commercial heterosexual transmission accounted for nearly 30.0% of all the routes of HIV transmission in Guangxi, 2015-2018. Female, aged<60 years old, single/divorced/widowed and having had junior and above high school education etc., appeared as risk factors on non-marital or non-commercial heterosexual transmission, among newly reported HIV/AIDS in Guangxi.
目的： 了解2015-2018年广西壮族自治区（广西）新报告非婚非商业异性性传播（非婚非商性传播）HIV/AIDS特征及其相关影响因素。 方法： 数据来源于中国疾病预防控制信息系统艾滋病防治基本信息系统，收集2015-2018年广西新报告≥18岁HIV/AIDS相关信息，采用非条件logistic回归模型分析新报告HIV/AIDS的非婚非商性传播HIV的影响因素。 结果： 2015-2018年广西新报告≥18岁HIV/AIDS 35 497例，异性性传播32 648例（占92.0%），非婚非商性传播10 500例，占新报告HIV/AIDS的29.6%（10 500/35 497），占异性性传播的32.2%（10 500/32 648），男性占53.5%（5 617/10 500），男女性别比为1.2∶1（5 617∶4 883），已婚/有固定性伴占55.9%（5 873/10 500）。男性的商业性传播占64.4%（16 516/25 633），而女性的非婚非商性传播占49.5%（4 883/9 864）。多因素logistic回归分析结果显示，非婚非商性传播的HIV感染风险：女性是男性的3.98倍（95%CI：3.78~4.20），<50、50~59岁组分别是≥60岁组的1.35倍（95%CI：1.27~1.44）、1.13倍（95%CI：1.05~1.21），未婚/离异/丧偶是已婚/有固定性伴的1.53倍（95%CI：1.45~1.61），文化程度为初中、高中及以上的分别是小学及以下的1.22倍（95%CI：1.16~1.29）、1.18倍（95%CI：1.10~1.27）。 结论： 2015-2018年广西新报告HIV/AIDS中，非婚非商性传播的构成比接近30.0%，非婚非商性传播HIV的危险因素包括女性、<60岁、未婚/离异/丧偶和初中及以上文化程度，应采取精准的防控措施。.
Keywords: HIV/AIDS; Heterosexual transmission; Non-commercial; Non-marital.