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The Effects of Medicaid Expansion Under the Affordable Care Act on Health Insurance Coverage, Health Care Access, and Health Care Use for People With Disabilities: A Scoping Review

More than 27% of individuals in the U.S. experience a disability. We conducted a scoping review of the literature to examine what is known about the impact of the 2010 Affordable Care Act Medicaid expansion on individuals with disabilities’ health care insurance coverage, health care access, and health care use. We followed the approach of Arskey and O’Malley in conducting our review. Electronic journal databases, hand searching of key health and disability journals, and reference checking were used to identify potential articles for the review. Individuals with disabilities or with conditions that could be disabling were included. The intervention used was the 2010 Affordable Care Act Medicaid expansion. Study eligibility criteria were peer-reviewed studies published in 2014 or later that conducted multivariate analyses of the effect of the Medicaid expansion on people with disabilities’ health insurance coverage, health care access, and health care use. The most consistent finding across studies was that the Medicaid expansion had a positive effect on health insurance coverage. It was generally found to have increased Medicaid coverage and decreased the uninsured rate. Its effect on private or employer-sponsored insurance coverage was a mix of no and negative effects. Findings related to health care access and use of care were more mixed. On a scale of 0 to 8 (highest quality), the quality of individual studies ranged from 2 to 6, with an average across studies of 4.2, the low end of adequate quality. Future studies should develop a more consistent approach to measuring disability and develop a core set of health care access and use measures to facilitate comparisons across studies so as to systematically evaluate the evidence related to the Medicaid expansion.