Abstract
INTRODUCTION: This study aimed to provide a first-ever comprehensive epidemiology of vaping behaviours among Australian gender and sexuality diverse (LGBTQA+) youth. METHODS: Using cross-sectional data from the Health4Life study, (N = 4,445 students, Mage = 15.7yrs), descriptive statistics and hierarchical mixed effects logistic regression models with nested random intercepts were used to calculate prevalence and differences in vaping behaviours by gender (trans [n = 142] vs. cisgender [n = 4,144]) and sexuality (gay or lesbian [n = 77], bisexual [n = 279], questioning [n = 167], queer [n = 90] vs. heterosexual [n = 3,638]), and associations of vaping with use of cigarettes and alcohol (including binge drinking), depression, and anxiety. RESULTS: Over one-third of trans and bisexual adolescents had ever tried vaping. Trans adolescents were significantly more likely to report ever vaping, daily vaping, and intention to vape in the future, compared with their cisgender peers, irrespective of age, socio-economic status, and school. Relative to heterosexual peers, gay/lesbian adolescents were nearly three times as likely to report current regular use of vaping and bisexual adolescents were significantly more likely to report ever vaping and intentions to vape in the future. Among LGBTQA+ adolescents, ever using a vape was associated with increased odds of ever using cigarettes, ever binge drinking, ever drinking alcohol alone, probable depressive/anxiety disorders. DISCUSSION: Vaping is significantly more common among LGBTQA+ adolescents, especially trans and bisexual adolescents, compared with their cisgender, heterosexual peers. Government health and education bodies should partner with LGBTQA+ community organisations to address the unique contexts of vaping among LGBTQA+ young people in an LGBTQA+ affirmative harm reduction manner.