Fang Lu, Bingyang She, Rui Zhao, Gaixia Li, Yawu Hu, Yi Liu, Min Zhao, Lei Zhang
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引用次数: 0
Abstract
Background: This study aimed to identify subpopulations of Chinese men who have sex with men (MSM) with distinct sexual behavioral patterns and explore their correlations with sexually transmitted infections (STIs).
Methods: We recruited 892 eligible MSM in Xi'an, China, collecting sociodemographic, sexual behavior, and STI data. Cluster analysis identified distinct sexual behavioral patterns, allowing us to examine STI differences across clusters.
Results: Among the 892 MSM analyzed, 3 clusters were identified. Cluster 1 (n = 157) exhibited high-risk sexual behavioral patterns, including the highest median number of sexual partners (5 vs 1 in cluster 2 vs 3 in cluster 3, P < .001), lowest consistent condom use for insertive anal sex (0% vs 64.12% vs 99.76%, P = .004) and receptive anal sex (9.22% vs 67.71% vs 98.91%, P = .006), highest uncertainty of partners' STIs (77.07% vs 57.89% vs 64.5%, P < .001), all recent partners being casual, longest length of sequential sexual acts (6 vs 5 vs 5, P = .045), and highest rates of gonorrhea (20.38% vs 10.09% vs 14.99%, P = .019) and chlamydia (16.56% vs 8.33% vs 13.21%, P = .045). Cluster 2 (n = 228) showed the lowest engagement in high-risk behaviors and STIs, characterized by the fewest sexual partners, highest certainty of partner's STIs, and all recent partners being regular. Cluster 3 (n = 507) showed moderate levels of high-risk behaviors and STIs, with the highest consistent condom use during anal sex.
Conclusions: This study identified 3 subpopulations of Chinese MSM with distinct sexual behavioral patterns. Targeted public health interventions to the most at-risk subpopulations of MSM are essential for STI prevention.
背景：本研究旨在确定具有不同性行为模式的中国男男性行为人群，并探讨其与性传播感染（sti）的相关性。方法：在中国西安招募892名符合条件的男男性行为者，收集社会人口学、性行为和性传播感染数据。聚类分析确定了不同的性行为模式，使我们能够检查聚类之间的性传播感染差异。结果：在892例MSM中，鉴定出3个聚类。集群1 (n = 157)表现出高危性行为模式,包括最高的平均性伴侣数量(5和1在集群2和3在集群3中,P <措施),插入肛交的最低一致使用避孕套(0% vs 64.12%比99.76%,P = 04)和肛交(9.22% vs 67.71%比98.91%,P = .006),最高的不确定性伴侣的性传播感染(77.07% vs 57.89%比64.5%,P <措施),所有最近的伙伴被随意,最长长度的序列性行为(6 vs 5对5,P = .045),淋病感染率最高（20.38% vs 10.09% vs 14.99%, P = 0.019），衣原体感染率最高（16.56% vs 8.33% vs 13.21%, P = 0.045）。聚类2 （n = 228）显示高危行为和性传播感染的参与率最低，其特征是性伴侣最少，性伴侣性传播感染的确定性最高，所有最近的性伴侣都是定期的。第3组（n = 507）表现出中等程度的高危行为和性传播感染，在肛交期间使用避孕套的比例最高。结论：本研究确定了中国MSM人群中具有不同性行为模式的3个亚群。针对男男性行为者最危险亚群的有针对性的公共卫生干预措施对于预防性传播感染至关重要。
期刊介绍：
Open Forum Infectious Diseases provides a global forum for the publication of clinical, translational, and basic research findings in a fully open access, online journal environment. The journal reflects the broad diversity of the field of infectious diseases, and focuses on the intersection of biomedical science and clinical practice, with a particular emphasis on knowledge that holds the potential to improve patient care in populations around the world. Fully peer-reviewed, OFID supports the international community of infectious diseases experts by providing a venue for articles that further the understanding of all aspects of infectious diseases.
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