Background and Aims
Although sexual-orientation-related alcohol use disparities are well
established, researchers have not identified whether disparities are
diminishing as societal attitudes towards lesbian/gay and bisexual (LGB)
people become more accepting. We examined changes in four alcohol-related
disparities between heterosexual and LGB youth from 1998–2013 by (1)
estimating the prevalence of these behaviors; (2) estimating disparities in
alcohol-related outcomes between heterosexual and LGB youth within each wave
year; and (3) testing whether the degree of difference in alcohol-related
disparities between heterosexual and LGB youth has changed.
Design
Logistic regression models and year-by-sexual-orientation
interactions with repeated, cross-sectional, provincially-representative
data.
Setting
British Columbia, Canada.
Participants
Students (ages 12–19) from the 1998 (n = 22,858),
2003 (n = 29,323), 2008 (n = 25,254), and 2013 (n =
21,938) British Columbia Adolescent Health Survey (total N = 99,373,
48.7% male, M ®age = 14.84).
Measurements
We modeled age-adjusted differences in lifetime alcohol use, age of
onset, past 30-day drinking, and past 30-day heavy episodic drinking between
heterosexual and three subgroups of sexual minority youth (i.e., mostly
heterosexual, bisexual, and lesbian/gay).
Findings
Generally, alcohol use declined for all youth, although less so among
LGB youth (average aOR = .58 and aOR = .53 for heterosexual
males and females and aOR = .71 and aOR = .57 for sexual
minority males and females, respectively). Within-year comparisons
demonstrated elevated rates of alcohol use among LGB compared with
heterosexual youth for each of the four survey years, especially among
females. Findings indicate few changes over time; however, results show an
increase in risky alcohol use from 1998 to 2013 among mostly heterosexual
(aOR = 1.58 for lifetime alcohol use, aOR = 1.58 for 30-day
alcohol use, and aOR = 1.34 for 30-day heavy episodic drinking), and
bisexual (aOR = 1.95 for lifetime alcohol use) females.
Conclusion
Despite the general decline in the prevalence of alcohol use among
young people in Canada since 1998, lesbian/gay and bisexual youth in Canada
continue to show elevated rates of alcohol use compared with heterosexual
youth.