Effect of same-sex marriage laws on health care use and expenditures in sexual minority men: a quasi-natural experiment.

Abstract

We sought to determine whether health care use and expenditures among gay and bisexual men were reduced following the enactment of same-sex marriage laws in Massachusetts in 2003. We used quasi-experimental, prospective data from 1211 sexual minority male patients in a community-based health center in Massachusetts. In the 12 months after the legalization of same-sex marriage, sexual minority men had a statistically significant decrease in medical care visits (mean = 5.00 vs mean = 4.67; P = .05; Cohen's d = 0.17), mental health care visits (mean = 24.72 vs mean = 22.20; P = .03; Cohen's d = 0.35), and mental health care costs (mean = $2442.28 vs mean = $2137.38; P = .01; Cohen's d = 0.41), compared with the 12 months before the law change. These effects were not modified by partnership status, indicating that the health effect of same-sex marriage laws was similar for partnered and nonpartnered men. Policies that confer protections to same-sex couples may be effective in reducing health care use and costs among sexual minority men.