Chemsex, a form of sexualized drug use, is prevalent among men who have sex with men (MSM) in the United Kingdom (UK), contributing to public health concerns like increased HIV transmission and overdose risk. This study explored the link between early first anal sex and chemsex engagement among MSM, a connection that has been underexplored in the UK. Analyzing data from 10,702 UK-based MSM from the European MSM Internet Survey (EMIS-2017), we used ordinal and binomial logistic regressions to assess how the age of first anal intercourse correlated with sexual risk behaviors and chemsex. The median age of anal sex debut was 17, with most participants (65%) reporting their first experience at 18 or older. A smaller group (7%) had their first anal intercourse at 13 or younger. Compared to those who had their first anal sex at 18 years or older, MSM who initiated anal sex at 17 years or younger were more likely to report having more non-steady condomless intercourse partners (aOR = 1.46, p < .001), using chemsex-associated drugs (aOR = 1.26, p = .013), engaging in non-sober sex (aOR = 1.22, p < .001), and recent involvement in chemsex (aOR = 1.48, p < .001). These findings highlight the need for interventions that address early sexual experiences to reduce sexual risk behaviors and chemsex among MSM.

中文翻译：

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早期的第一次预测了英国男男性行为者对 chemsex 的参与。


Chemsex 是一种性化药物使用形式，在英国 （UK） 的男男性行为者 （MSM） 中普遍存在，导致公共卫生问题，如 HIV 传播增加和过量风险。本研究探讨了 MSM 的早期第一次与 chemsex 参与之间的联系，这种联系在英国尚未得到充分探索。分析来自欧洲 MSM 互联网调查 （EMIS-2017） 的 10,702 名英国 MSM 的数据，我们使用顺序和二项式 logistic 回归来评估首次年龄与性风险行为和化学性行为的相关性。首次亮相的中位年龄为 17 岁，大多数参与者 （65%） 报告说他们的第一次经历是在 18 岁或以上。较小的群体 （7%） 在 13 岁或更年轻时进行了第一次。与在 18 岁或以上进行第一次的人相比，在 17 岁或更年轻时开始的 MSM 更有可能报告有更多不稳定的无套伴侣 （aOR = 1.46， p < .001），使用 chemsex 相关药物 （aOR = 1.26，p = .013），进行非清醒的性行为 （aOR = 1.22， p < .001）， 和最近参与 chemsex （aOR = 1.48，p < .001）。这些发现强调了针对早期性经历的干预措施的必要性，以减少 MSM 的性风险行为和化学性行为。