In states that expanded Medicaid, uninsured hospital stays decreased sharply and Medicaid stays increased sharply in the first two quarters of 2014. There was no change in payer mix in states that did not expand Medicaid.
Bibliographical noteFunding Information:
The authors thank Anne Elixhauser and Claudia Steiner for helpful comments. Helen Levy acknowledges financial support from the National Institute on Aging (Grant No. NIA K01AG034232).