New federal financial incentives for Medicaid expansion and the increased reliance on Medicaid as a coverage safety net during the pandemic have renewed debate in the 12 states that have not adopted the Medicaid expansion under the Affordable Care Act.
A new KFF literature review provides context for these expansion debates by summarizing evidence from nearly 200 studies about the effects of Medicaid expansion that were published between February 2020 and March 2021. These studies generally have found beneficial effects across a range of areas, including:
The new analysis of recent studies builds on an earlier report (examining over 400 studies) concluding that expansion is linked to gains in coverage; improvements in access, financial security, and some measures of health status/outcomes; and economic benefits for states and providers.
Along with the benefits, Medicaid expansion brings increases in Medicaid spending for states and especially for the federal government, which covers 90 percent of the cost.
For the full literature review, as well as other data and analyses related to ACA Medicaid expansion, visit kff.org.