Department of Psychological Sciences, Texas Tech University, Lubbock, TX, 79409, USA.
Department of Medical Social Sciences, Northwestern University, Chicago, IL, USA.
Arch Sex Behav. 2019 May;48(4):1073-1086. doi: 10.1007/s10508-018-1275-7. Epub 2019 Jan 2.
The current study sought to examine substance use disparities among sexual minority youth. The current subsample of 348,175 students participated in the Youth Risk Behavior Surveillance System (YRBSS) study from years 2005 to 2015 (biennially) in jurisdictions that asked at least one question about sexual minority status. Latent class analysis was used to identify implicit classes of sexual minority youth, based on respondents' sexual identity and sexual behavior. Sex-stratified regression models were run to determine the association between class membership and age of onset and persistent use of alcohol, tobacco, and marijuana. Findings showed that sexual minority female subgroups were primarily distinguished by sexual identity (e.g., "lesbian," "bisexual"), whereas sexual minority male subgroups were primarily distinguished by sexual behavior. Female lesbian and bisexual youth were at risk of initiating substance use at younger ages and, among lifetime users, were more likely to persist in their tobacco and marijuana use over time, relative to sexually active female heterosexual youth. Among lifetime users, male youth with partners of both sexes were at greater risk of persistent use of alcohol, tobacco, and marijuana over time and earlier ages of first use. Recommendations for intervention and prevention programs geared toward reducing sexual minority youth substance use are provided.
本研究旨在探讨性少数青年群体在物质使用方面的差异。本研究的子样本由 348175 名学生组成，他们参加了 2005 年至 2015 年（每两年一次）在至少询问一个有关性少数群体地位问题的司法管辖区进行的青少年风险行为监测系统（YRBSS）研究。基于受访者的性身份和性行为，使用潜在类别分析来确定性少数青年的隐性类别。进行性别分层回归模型分析，以确定类别成员身份与酒精、烟草和大麻使用的起始年龄和持续使用之间的关联。研究结果表明，性少数女性亚组主要根据性身份（例如，“女同性恋”、“双性恋”）来区分，而性少数男性亚组主要根据性行为来区分。女同性恋和双性恋青年开始物质使用的年龄较小，在所有终生使用者中，与有性活跃的异性恋青年相比，她们更有可能随着时间的推移持续使用烟草和大麻。在所有终生使用者中，与同性和异性伴侣发生性关系的男性青年随着时间的推移和更早的年龄开始使用酒精、烟草和大麻的可能性更大。为减少性少数青年物质使用而制定的干预和预防计划的建议。
