Rollins School of Public Health, Emory University, 1518 Clifton Road, Atlanta, GA, 30322, USA.
Arch Sex Behav. 2020 Jan;49(1):275-286. doi: 10.1007/s10508-019-01508-w. Epub 2019 Oct 29.
Earlier age of first sex has potential direct and indirect health effects later in life. Though there are multiple nationwide general population studies on ages of first sex, there is no such nationwide study of first male-male oral or anal sex among men who have sex with men (MSM). This may be important for understanding racial/ethnic disparities in HIV and sexually transmitted infection acquisition among young racial/ethnic minority MSM. Our study examined the birth cohort and racial/ethnic differences in ages of first male-male oral and anal sex using a diverse 2015 U.S. nationwide sample of 10,217 sexually active MSM. The mean age of first male-male oral sex was 18.0 years. Compared with older birth cohorts, those MSM born 1990-2000 were more likely to have younger age of first male-male oral sex. Compared to white MSM, Hispanic MSM and non-Hispanic black MSM were more likely to have younger age of first male-male oral sex with a man. The mean age of first male-male anal sex was 20.3 years. Compared with older birth cohorts, those MSM born 1990-2000 were more likely to have younger age of first male-male anal sex. Compared to white MSM, MSM of all other racial/ethnic groups were more likely to have younger age of first male-male anal sex. These findings emphasize the need for comprehensive and MSM-inclusive sexual health education for young teens and online sexual health resources for young gay, bisexual, queer, and other MSM.
初次性行为的年龄较早可能会对以后的健康产生直接和间接的影响。尽管有多项针对全国一般人群初次性行为年龄的研究，但针对男男性行为者（MSM）初次男男性行为中的口交或肛交的全国性研究却没有。这对于理解年轻的少数族裔 MSM 中 HIV 和性传播感染的获取方面的种族/民族差异可能很重要。我们的研究使用了来自美国 2015 年具有不同种族/民族的 10217 名活跃 MSM 的全国性样本，研究了出生队列和种族/民族在初次男男性行为中的口交和肛交年龄上的差异。初次男男性行为中的口交年龄的平均值为 18.0 岁。与较年长的出生队列相比，1990-2000 年出生的 MSM 更有可能较早进行初次男男性行为中的口交。与白人 MSM 相比，西班牙裔 MSM 和非西班牙裔黑人 MSM 更有可能较早地与男性进行初次男男性行为中的口交。初次男男性行为中的肛交年龄的平均值为 20.3 岁。与较年长的出生队列相比，1990-2000 年出生的 MSM 更有可能较早地进行初次男男性行为中的肛交。与白人 MSM 相比，所有其他种族/民族群体的 MSM 都更有可能较早地进行初次男男性行为中的肛交。这些发现强调了为青少年提供全面的、包含 MSM 的性健康教育以及为年轻的同性恋、双性恋、酷儿和其他 MSM 提供在线性健康资源的必要性。
