Bisexual women had higher rates of past-year and daily marijuana use compared to heterosexual women, according to a study just published at Columbia University Mailman School of Public Health. Gay/lesbian women were also more likely to report daily marijuana use and past year medical marijuana use than heterosexual women. While previous research has explored the association between state-level medical marijuana laws (MMLs) and marijuana use (MU) and MU disorder (MUD) among the general U.S. population, this is the first to explore this relationship for lesbian, gay and bisexual (LGB) individuals, including gender differences. The findings are online in the journal Drug and Alcohol Dependence.

“Our work builds on the Institute of Medicine report highlighting the importance of conducting additional research on LGB populations across the life course,” said Morgan Philbin, PhD, assistant professor of Sociomedical Sciences at Columbia’s Mailman School. “”While research has explored how LGB discrimination polices may impact substance use, less work has explored how substance use policies may impact LGB men and women differently than heterosexuals.”

The researchers analyzed data from 126,463 adults 18 and older in the 2015-2017 National Survey on Drug Use and Health to study the odds of past-year marijuana use, any past-year medical marijuana use, daily/near-daily marijuana use, and marijuana use disorder. They also tested the interaction between residence in a state with medical marijuana laws and sexual identity.

Read the full article and study by Columbia University’s Mailman School of Public Health here.