Journal
DRUG AND ALCOHOL DEPENDENCE
Volume 189, Issue -, Pages 139-146Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.drugalcdep.2018.05.008
Keywords
Substance use; Substance use disorders; Disparities; LGB; Sexual minorities
Categories
Funding
- National Institute on Drug Abuse [P50DA039838, R01DA039854, R01DA037902]
- National Institute of Mental Health [R01MH104381]
- National Center for Advancing Translational Sciences [KL2TR002015, UL1TR002014]
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Background: Sexual minorities (SMs) experience elevated rates of substance use behaviors and disorders relative to heterosexuals; minority stress is theorized to contribute to these disparities. As SMs are not a homogenous group, analyses that aggregate SMs across sexual identity, age, or gender obscure important variation among this population. To date, age- and gender-specific disparities have not been rigorously examined using a large national sample. Methods: Using data on 67,354 adults (ages 18-49) from the 2015 and 2016 National Survey of Drug Use and Health we examined age- and gender-specific disparities in smoking, heavy episodic drinking, marijuana use, illicit drug use, and alcohol/substance use disorder. Age groups were ages 18-25, 26-34, and 35-49. Using logistic regression, we estimated age- and gender-specific odds ratios for gay/lesbian and bisexual individuals, relative to heterosexuals; analyses adjusted for demographic characteristics. Results: Bisexual women had significantly elevated odds of all outcomes at all ages, relative to heterosexual women. Gay/lesbian individuals had significantly elevated odds for nearly all outcomes compared to same gender heterosexuals at ages 18-25, but not consistently at older ages. For bisexual men, significant disparities compared to heterosexual men were only observed at ages 35-49 for marijuana use and alcohol/substance use disorder. Conclusions: We found notable within-group differences regarding SM disparities. While disparities were most pronounced in young adulthood for gay/lesbian individuals and mid-adulthood for bisexual men, bisexual women uniquely experienced disparities across all ages. Minority stress experiences may vary with respect to gender, age/cohort, and sexual identity, resulting in differential risk for substance use.
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