Changes in insurance coverage among hospitalized nonelderly adults after Michigan Medicaid expansion

June 21, 2016

A research letter on "Changes in insurance coverage among hospitalized nonelderly adults after Medicaid expansion in Michigan," by Matthew Davis, Achamyeleh Gebremariam, and John Ayanian, was published in the June 21 edition of the Journal of the American Medical Association (JAMA). 


Abstract

Expanded insurance coverage through the Affordable Care Act (ACA) may reduce the burden of uncompensated care for hospitals. Recent reports have indicated that rates of uninsurance among hospitalized adults have declined as coverage expanded in 2014. However, no peer-reviewed publications have assessed statewide trends in coverage with ACA-sponsored expansion and also examined between-hospital differences in coverage trends. 

Michigan expanded Medicaid coverage in 2014 under the ACA. We compared insurance coverage for hospitalized patients during initial implementation of the Healthy Michigan Plan in April - December 2014 with corresponding months in 2012 and 2013. We also examined patterns at the level of individual hospitals to ascertain whether the consequences of expanded coverage were uniform across institutions. 


To learn more, read "Changes in insurance coverage among hospitalized nonelderly adults after Medicaid expansion in Michigan." For questions, contact John Ayanian.