Blumer thinks reducing psychological distress in people who are not heterosexual goes beyond the question of marriage.
"It's not the answer but it's a step in the right direction," she said. "You'd feel supported in your relationship by the general public and have way more legal rights. If the barriers of same-sex marriage were removed, people would be on more solid ground."
The study found an association between being in a legally recognized relationship and having better mental health, but it didn't prove cause-and-effect.
For more about lesbian, gay, bisexual and transgender health issues, visit the U.S. Centers for Disease Control and Prevention.
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