American journal of epidemiology | 2021
Association of Medicaid Expansion with Suicide Deaths among Nonelderly U.S. Adults.
Abstract
In 2014, the Affordable Care Act gave states the option to expand Medicaid coverage to nonelderly adults (18-64 years) with incomes up to 138% of the federal poverty level. The association of Medicaid expansion with suicide, a leading cause of death in the U.S., has not been examined. We used 2005-2017 National Violent Death Reporting System data for eight Medicaid expansion and seven non-expansion states. We examined the association of Medicaid expansion with rates of suicide death among nonelderly adults per 100,000 population using a difference-in-differences approach. Adjusting for state-level confounders, Medicaid expansion states had 1.2 (95% CI -2.5, 0.1) fewer suicide deaths per 100,000 population per year in the post-expansion period than would have been expected if they had followed the same trend in suicide rates as non-expansion states. Medicaid expansion was associated with reductions in suicide rates among women, men, those 30-44 years, white, non-Hispanic individuals, and those without a college degree. Medicaid expansion was not associated with a change in suicide rates among those 18-29 or 45-64 years, and non-white or Hispanic individuals. Overall, Medicaid expansion was associated with reductions in rates of suicide death among nonelderly adults. Further research on inequities in expansion benefits is needed.