Background: The aim of this study was to investigate inequities in substance use disorder (SUD) diagnosis, opioid misuse, marijuana misuse, SUD treatment utilization, and utilization of university mental health services among sexual and gender minority (SGM) American Indian, Alaska Native, and Native Hawaiian (AI/AN/NH) college students.
Methods: Data consisting of 8,103 AI/AN/NH students' responses to the American College Health Association's National College Health Assessment survey from fall 2015 through spring 2019 were utilized for this study. Multivariable logistic regression models were used to compare the odds of SUD diagnosis, opioid misuse, and marijuana misuse in SGM AI/AN/NH students to cisgender, heterosexual peers. Unadjusted odds of SUD treatment utilization and utilization of university mental health services were also evaluated.
Results: Compared to cisgender females, transgender (aOR = 4.43, 95% CI = 2.67-7.34) and gender diverse (aOR = 2.86, 95% CI = 1.61-5.07) students had significantly higher odds of SUD diagnosis. Similarly, significantly higher odds of SUD diagnosis were observed among sexual minorities, including gay/lesbian (aOR = 2.95, 95% CI = 1.71-5.09) and bisexual (aOR = 1.97, 95% CI = 1.30-2.99) students compared to heterosexual peers. Sexual minority students had significantly higher odds of utilizing university mental health services (uOR = 2.43, 95% CI = 1.22-4.84) than heterosexual peers. Odds of opioid misuse and marijuana misuse were also significantly increased among sexual minority students.
Conclusions: AI/AN/NH college students who identify as SGM have higher odds of SUD diagnosis, opioid misuse, and marijuana misuse than their cisgender, heterosexual peers. These findings highlight the need to consider tailored programming for SGM AI/AN/NH students in substance use prevention and intervention efforts in U.S. college settings.
Keywords: American Indian; Indigenous; Substance use disorder; college students; gender diverse; sexual minority.