Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky, USA.
Christina Lee Brown Envirome Institute, School of Medicine, University of Louisville, Louisville, Kentucky, USA.
Subst Use Misuse. 2024;59(14):2021-2028. doi: 10.1080/10826084.2024.2392532. Epub 2024 Aug 18.
College students who identify as a sexual minority (i.e., lesbian, gay, bisexual, or other sexual orientation) are at higher risk for e-cigarette use than their heterosexual or "straight" peers. However, little is known about factors, such as e-cigarette outcome expectancies, that might influence these differences in prevalence rates. Therefore, the current study examined differences between heterosexual and sexual minority college student e-cigarette users in terms of days of past-month e-cigarette use, e-cigarette dependence, and e-cigarette outcome expectancies. A secondary aim of the study was to examine whether outcome expectancies served as an explanatory mechanism in the association between sexual minority status and e-cigarette use frequency and dependence. Participants were heterosexual ( = 90; = 19.65, = 2.70; 76.7% female; 77.8% White) and sexual minority ( = 44; = 20.02, = 2.18; 68.2% female; 90.9% White) college student e-cigarette users who completed self-report measures. Students who identified as a sexual minority reported greater e-cigarette dependence, more frequent past 30-day use, and greater negative consequences and positive reinforcement e-cigarette outcome expectancies. Follow-up mediation analyses indicated a significant indirect effect of sexual minority status on both days of past-month e-cigarette use and e-cigarette dependence through expectancies for negative consequences and positive reinforcement. These findings suggest that positive reinforcement and negative consequences outcome expectancies may be contributing to the disparities in e-cigarette use among college students who identify as a sexual minority and could be useful targets for cessation interventions for this population.
认同性少数群体（即女同性恋、男同性恋、双性恋或其他性取向）的大学生比异性恋或“直人”同龄人更有可能使用电子烟。然而，对于可能影响这些流行率差异的因素，例如电子烟结果预期，知之甚少。因此，本研究考察了异性恋和性少数群体大学生电子烟使用者在过去一个月电子烟使用天数、电子烟依赖和电子烟结果预期方面的差异。该研究的次要目的是检验结果预期是否在性少数群体身份与电子烟使用频率和依赖之间的关联中起解释作用。参与者为异性恋（ = 90； = 19.65， = 2.70；76.7%为女性；77.8%为白人）和性少数群体（ = 44； = 20.02， = 2.18；68.2%为女性；90.9%为白人）大学生电子烟使用者，他们完成了自我报告的测量。认同为性少数群体的学生报告了更高的电子烟依赖、更频繁的过去 30 天使用以及更多的负面后果和积极强化电子烟结果预期。后续中介分析表明，性少数群体身份对过去一个月电子烟使用天数和电子烟依赖的显著间接影响，是通过对负面后果和积极强化的预期产生的。这些发现表明，积极强化和消极后果的结果预期可能是导致性少数群体大学生电子烟使用差异的原因之一，并且可能是针对该人群的戒烟干预措施的有用目标。
