From the Division of Epidemiology, College of Public Health.
Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Ohio State University, Columbus, OH.
Sex Transm Dis. 2018 Nov;45(11):e94-e97. doi: 10.1097/OLQ.0000000000000890.
Among men who have sex with men (MSM), rectal douching (RD) has been associated with increased prevalence of human immunodeficiency virus and other sexually transmitted infections. Substances commonly used for RD, especially water-based solutions, could disrupt the rectal epithelium and increase susceptibility to infection. The few existing reports on RD among MSM are primarily in middle- and high-income settings, and to date, no study has focused on RD among MSM in Africa.
We conducted a secondary data analysis of programmatic data from key population service centers in western Kenya. Data were extracted from records of clients who identified as MSM and accessed services between January 1, 2014, and September 1, 2016. We compared demographic and behavioral characteristics of men who did and did not practice RD. Logistic regression assessed associations with RD.
Of the 202 MSM in this analysis, 63% engaged in RD. All who engaged in RD used water-based substances. Those who engaged in receptive anal intercourse in the last 3 months were more likely to report RD (odds ratio, 3.19; 95% confidence interval, 1.67-6.07). Among MSM who engaged in sex work, those who practiced RD reported more regular clients per week (2.8 clients vs. 1.3 clients, P = 0.01). Rectal douching practices did not vary by other sexual risk practices.
Rectal douching is common in this population of Kenyan MSM, especially among those who have recently engaged in receptive anal intercourse, suggesting that a rectal douche that delivers microbicides could be a potential intervention to reduce human immunodeficiency virus/sexually transmitted infection within this population.
在男男性行为者(MSM)中,直肠冲洗(RD)与人类免疫缺陷病毒和其他性传播感染的患病率增加有关。RD 中常用的物质,特别是水基溶液,可能会破坏直肠上皮细胞并增加感染的易感性。少数现有的关于 MSM 中 RD 的报告主要集中在中高收入环境中,迄今为止,尚无研究关注非洲 MSM 中的 RD。
我们对肯尼亚西部重点人群服务中心的项目数据进行了二次数据分析。数据从 2014 年 1 月 1 日至 2016 年 9 月 1 日期间确定为 MSM 并接受服务的客户记录中提取。我们比较了进行和不进行 RD 的男性的人口统计学和行为特征。逻辑回归评估了与 RD 的关联。
在这项分析中的 202 名 MSM 中,有 63%的人进行了 RD。所有进行 RD 的人都使用了水基物质。在过去 3 个月内进行过接受性肛交的人更有可能报告 RD(优势比,3.19;95%置信区间,1.67-6.07)。在从事性工作的 MSM 中,进行 RD 的人每周报告的常客更多(2.8 名客户与 1.3 名客户,P = 0.01)。RD 实践没有因其他性风险行为而异。
在肯尼亚的 MSM 人群中,RD 很常见,尤其是在最近进行过接受性肛交的人群中,这表明直肠冲洗器提供杀微生物剂可能是减少该人群中人类免疫缺陷病毒/性传播感染的潜在干预措施。