Department of Sociology, Florida State University, Tallahassee, USA.
Perspect Sex Reprod Health. 2011 Sep;43(3):142-50. doi: 10.1363/4314211. Epub 2011 Jul 25.
Little is known about the prevalence and correlates of same-sex sexual activity among teenagers and young adults, particularly those who do not identify themselves as gay, lesbian or bisexual. Effective interventions to prevent STDs require accurate understanding of youths' sexual behavior.
Descriptive and regression analyses of data from the 2002 National Survey of Family Growth examined patterns and correlates of same-sex sexual activity among a sample of 2,688 never-married, noncohabiting men and women aged 15-21. Same-sex behavior was assessed separately by gender, as well as by heterosexual experience and sexual attraction and identity.
Eleven percent of women and 4% of men reported same-sex sexual experience. Youth who were attracted only to the opposite sex had a decreased likelihood of reporting same-sex activity (rate ratio, 0.1 for each gender), while women and men who identified themselves as homosexual or bisexual had an elevated likelihood of such activity (5.1 and 5.9, respectively). However, among women who were attracted exclusively to men, those who had had heterosexual sex were more than four times as likely as those who had not to have engaged in same-sex activity. Finally, among youth who reported any same-sex attraction, women and men who said they were homosexual or bisexual had an elevated likelihood of having engaged in same-sex behavior (4.7 and 5.6, respectively).
A significant proportion of "straight" youth engage in same-sex activity, and so information on risks associated with such behavior should be included in sex education programs and targeted to all youth.
对于青少年和年轻人中同性性行为的流行率和相关因素，特别是那些不认同自己是同性恋、双性恋或异性恋的人，知之甚少。有效的性病预防干预措施需要准确了解年轻人的性行为。
对 2002 年全国家庭增长调查中从未结婚、未同居的 15-21 岁男性和女性样本数据进行描述性和回归分析，考察了同性性行为的模式和相关因素。同性行为按性别、异性经验以及性吸引和身份分别进行评估。
11%的女性和 4%的男性报告有同性性经历。仅对异性有吸引力的年轻人报告同性性行为的可能性降低（每种性别比率比为 0.1），而自我认同为同性恋或双性恋的女性和男性则更有可能有这种行为（分别为 5.1 和 5.9）。然而，在仅对男性有吸引力的女性中，有过异性性行为的女性比没有异性性行为的女性发生同性性行为的可能性高出四倍以上。最后，在报告有任何同性吸引力的年轻人中，自我认同为同性恋或双性恋的女性和男性发生同性性行为的可能性更高（分别为 4.7 和 5.6）。
相当一部分“异性恋”年轻人有同性性行为，因此，应在性教育计划中纳入与这种行为相关的风险信息，并针对所有年轻人。
