Oregon State University, School of Psychological Science, 2950 SW Jefferson Way, Corvallis OR 97331, USA.
Drug Alcohol Depend. 2018 Nov 1;192:38-44. doi: 10.1016/j.drugalcdep.2018.07.030. Epub 2018 Sep 5.
Relative to heterosexual youth, sexual minority youth exhibit increased substance use. Risk for polysubstance use, which magnifies drug-related harms, remains largely unexamined for sexual minority youth. This investigation used a nationally-representative dataset to compare polysubstance use patterns between sexual minority and heterosexual youth.
The cross-sectional 2015 CDC's Youth Risk Behavior Surveillance System (N = 15,624) was utilized. Latent mixture modeling empirically identified subgroups of youth based on self-reported past-month use of alcohol, cigarettes, chewing tobacco/snus/snuff, cigars/cigarillos/little cigars, e-cigarettes, marijuana, and past-month binge drinking (all dichotomized: 0 = none; 1 = at least once). Adjusting for race/ethnicity, sex, and age, the risk for being in each substance-using class, was compared between youth who self-identified as heterosexual and gay/lesbian, bisexual, or "not sure."
Five classes were supported: "non-users" (68.19%), "alcohol users" (13.08%; elevated alcohol use and binge drinking probabilities), "nicotine/marijuana co-users" (5.80%; elevated nicotine and marijuana use), "poly-substance/e-cigarette users" (5.35%; elevated on all substances except tobacco-containing products), and "polysubstance/tobacco users" (7.59%; elevated for all substances). Relative to heterosexual youth, gay/lesbian-identified youth were at risk of being "nicotine and marijuana co-users", bisexual youth were at risk of being in all four substance-using classes, and the "not sure" youth were at risk of being "polysubstance/tobacco users." Select disparities were larger for youth who were also female or a minority race/ethnicity.
Sexual minority youth, particularly bisexual youth, were at increased risk relative to heterosexual youth for polysubstance use. Polysubstance use warrants attention in substance use interventions, including interventions tailored for sexual minority youth.
与异性恋青年相比，同性恋青年的物质使用量增加。性少数青年的多种物质使用风险，即放大了与毒品相关的危害，在很大程度上仍未得到研究。本研究利用全国代表性数据集比较了性少数青年和异性恋青年的多种物质使用模式。
利用 2015 年美国疾病控制与预防中心的青少年风险行为监测系统（N=15624）进行横断面研究。基于过去一个月内报告的使用酒精、香烟、嚼烟/鼻烟/鼻烟、雪茄/小雪茄/小雪茄、电子烟、大麻和过去一个月内狂欢性饮酒（均为二分类：0=无；1=至少一次），使用潜在混合模型对青少年进行实证分组。在调整种族/民族、性别和年龄后，比较了自认为是异性恋和同性恋/女同性恋、双性恋或“不确定”的青少年在每个物质使用群体中的风险。
支持五类人群：“非使用者”（68.19%）、“酒精使用者”（13.08%；酒精使用和狂欢性饮酒的概率增加）、“尼古丁/大麻共同使用者”（5.80%；尼古丁和大麻使用增加）、“多种物质/电子烟使用者”（5.35%；除了含烟草制品外，所有物质的使用概率均增加）和“多种物质/烟草使用者”（7.59%；所有物质的使用概率均增加）。与异性恋青年相比，同性恋青年有风险成为“尼古丁和大麻共同使用者”，双性恋青年有风险成为四类物质使用者，“不确定”青年有风险成为“多种物质/烟草使用者”。对于女性或少数族裔/种族青年，选择的差异更大。
性少数青年，特别是双性恋青年，相对于异性恋青年，多种物质使用的风险增加。多种物质使用需要在物质使用干预中引起重视，包括为性少数青年量身定制的干预措施。
