Substance Use, Mental Health, and Service Access among Bisexual Adults in Australia

ABSTRACTBisexuals remain largely invisible in substance use and mental health research in Australia. This may be due to the contested nature of ‘bisexuality,’ where some position it as an undecided sexuality, as well as the aggregation of bisexuals with lesbian and gay people in most studies. This study aimed to examine whether bisexuality was associated with higher levels of substance use and mental health problems. An online survey was conducted with 366 participants who were age 18 to 40 years, lived in Australia, and identified as lesbian, gay, bisexual (LGB) or heterosexual. Compared to heterosexual participants, bisexuals reported using a greater number of different drugs in the previous 12 months and were more likely to have used methamphetamines and opioids. They were also more likely have been diagnosed with a mental health disorder and to report current psychological distress. Compared to lesbian/gay participants, bisexuals were more likely to have been diagnosed with a mental health disorder an...