Susan Cochran worked with a team of researchers from the University of California, Los Angeles using data they collected from 2074 people first interviewed in the California Health Interview Survey.
According to Cochran, "It is well known that health services utilization is greater among women generally. Here we have shown that minority sexual orientation is also an important consideration. Lesbians and bisexual women appear to be approximately twice as likely as heterosexual women to report having received recent treatment for mental health or substance use disorders."
The researchers speculate about the causes correlating to the increased use of healthcare and cite issues such as higher exposure to discrimination, violence, and other stressful life events.
Cochran added, "The pervasive and historically rooted societal pathologizing of homosexuality may contribute to this propensity for treatment by construing homosexuality and issues associated with it as mental health problems".
Article: Christine E. Grella, Lisa Greenwell, Vickie M. Mays and Susan D. Cochran, 'Influence of gender, sexual orientation, and need on treatment utilization for substance use and mental disorders: findings from the california quality of life survey', BMC Psychiatry (in press)