Public Health Solutions, Department of Research & Evaluation, New York, New York 10013, USA.
J Sex Med. 2010 Sep;7(9):3104-14. doi: 10.1111/j.1743-6109.2009.01636.x.
Relatively little is known about sexual dysfunction (SD) in men who have sex with men (MSM).
In order to better understand SD symptoms in MSM, we assessed self-reported SD symptoms, individually and by latent class analysis (LCA).
In 2004-2005 an Internet sample of U.S. MSM was recruited from gay-oriented sexual networking, chat and news websites. The analytic sample comprised 7,001 men aged 18 or older who reported lifetime male sex partners and oral or anal sex with a male partner in their most recent encounter within the past year.
Seven questions on SD symptoms that occurred during the past 12 months inquired about low sexual desire, erection problems, inability to achieve an orgasm, performance anxiety, premature ejaculation, pain during sex, and sex not being pleasurable.
Self-reported symptoms of SD were high. Overall, 79% of men reported one or more SD symptoms in the past year, with low sexual desire, erection problems, and performance anxiety being the most prevalent. Four distinct underlying patterns of sexual functioning were identified by LCA: no/low SD, erection problems/performance anxiety, low desire/pleasure, and high SD/sexual pain. High SD/sexual pain was distinguished from the other patterns by club drug use and use of prescription and non-prescription erectile dysfunction medication before sex in the past year. Additionally, men associated with the high SD/sexual pain group were younger, single, more likely to have poor mental and physical health, and more likely to have been diagnosed with a sexually transmitted infection in the past year compared to men in the no/low SD group.
LCA enabled us to identify underlying patterns of sexual functioning among this sample of MSM recruited online. Future research should investigate these distinct subgroups with SD symptoms in order to develop tailored treatments and counseling for SD.
关于男男性行为者（MSM）的性功能障碍（SD），我们知之甚少。
为了更好地了解 MSM 的 SD 症状，我们评估了自我报告的 SD 症状，分别通过潜在类别分析（LCA）进行评估。
2004-2005 年，我们从面向同性恋的性网络、聊天和新闻网站招募了美国 MSM 的互联网样本。分析样本包括 7001 名年龄在 18 岁或以上的男性，他们报告了在过去一年中与男性伴侣的终身性伴侣和最近一次的口交或肛交经历。
过去 12 个月内询问 SD 症状的七个问题包括性欲低下、勃起问题、无法达到性高潮、表现焦虑、早泄、性交疼痛和性快感缺失。
自我报告的 SD 症状较高。总体而言，79%的男性在过去一年中报告了一种或多种 SD 症状，性欲低下、勃起问题和表现焦虑最为常见。通过潜在类别分析（LCA）确定了四种不同的性功能潜在模式：无/低 SD、勃起问题/表现焦虑、低欲望/快感和高 SD/性疼痛。高 SD/性疼痛与其他模式的区别在于过去一年中使用俱乐部药物和性行为前使用处方和非处方勃起功能障碍药物。此外，与高 SD/性疼痛组相关的男性比低 SD 组的男性年龄更小、单身、更有可能存在心理健康和身体健康状况不佳、更有可能在过去一年中被诊断出患有性传播感染。
LCA 使我们能够识别出这个在线招募的 MSM 样本中潜在的性功能模式。未来的研究应该调查这些具有 SD 症状的不同亚组，以便为 SD 制定针对性的治疗和咨询方案。
