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      Association of the Affordable Care Act’s Medicaid Expansion With Care Quality and Outcomes for Low-Income Patients Hospitalized With Heart Failure

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          Abstract

          <div class="section"> <a class="named-anchor" id="S1"> <!-- named anchor --> </a> <h5 class="section-title" id="d5202115e165">BACKGROUND:</h5> <p id="P1">Heart failure (HF) is the leading cause of morbidity and mortality in the United States. Despite advancement in the management of HF, outcomes remain suboptimal, particularly among the uninsured. In 2014, the Affordable Care Act expanded Medicaid eligibility, and millions of low-income adults gained insurance. Little is known about Medicaid expansion’s effect on inpatient HF care. </p> </div><div class="section"> <a class="named-anchor" id="S2"> <!-- named anchor --> </a> <h5 class="section-title" id="d5202115e170">METHODS AND RESULTS:</h5> <p id="P2">We used the American Heart Association’s Get With The Guidelines–Heart Failure registry to assess changes in inpatient care quality and outcomes among low-income patients (&lt;65 years old) hospitalized for HF after Medicaid expansion, in expansion, and nonexpansion states. Patients were classified as low-income if covered by Medicaid, uninsured, or missing insurance. Expansion states were those that implemented expansion in 2014. Piecewise logistic multivariable regression models were constructed to track quarterly trends of quality and outcome measures in the pre (January 1, 2010–December 31, 2013) and postexpansion (January 1, 2014–June 30, 2017) periods. These measures were compared between expansion versus nonexpansion states during the postexpansion period. The cohort included 58804 patients hospitalized across 391 sites. In states that expanded Medicaid, uninsured HF hospitalizations declined from 7.9% to 4.4%, and Medicaid HF hospitalizations increased from 18.3% to 34.6%. Defect-free HF care was increasing during the preexpansion period (adjusted odds ratio/quarter, 1.06; 95% confidence interval, 1.03–1.08) but did not change after expansion (adjusted odds ratio, 0.99; 95% confidence interval, 0.97–1.02). Patterns were similar for other quality measures. There were no quality measures for which the rate of improvement sped up after expansion. In-hospital mortality rates remained similar during the preexpansion (adjusted odds ratio, 0.99; 95% confidence interval, 0.96–1.02) and postexpansion periods (adjusted odds ratio, 1.00; 95% confidence interval, 0.97–1.03). Among nonexpansion states, uninsured HF hospitalizations increased (11.6% to 16.7%) as did Medicaid HF hospitalizations (17.9% to 26.6%), and no quarterly improvement was observed for most quality measures in the post compared with preexpansion period. During the postexpansion period, defect-free care and mortality did not differ between expansion and nonexpansion states. </p> </div><div class="section"> <a class="named-anchor" id="S3"> <!-- named anchor --> </a> <h5 class="section-title" id="d5202115e175">CONCLUSIONS:</h5> <p id="P3">Medicaid expansion was associated with a significant decline in uninsured HF hospitalizations but not improvements in quality of care or in-hospital mortality among sites participating in a national quality improvement initiative. Efforts beyond insurance expansion are needed to improve in-hospital outcomes for low-income patients with HF. </p> </div>

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          Author and article information

          Journal
          Circulation: Cardiovascular Quality and Outcomes
          Circ Cardiovasc Qual Outcomes
          Ovid Technologies (Wolters Kluwer Health)
          1941-7713
          1941-7705
          July 2018
          July 2018
          : 11
          : 7
          Affiliations
          [1 ]Brigham and Women’s Hospital Heart &amp; Vascular Center, Harvard Medical School, Boston, MA (R.K.W., D.L.B.)
          [2 ]Division of Cardiology, Richard and Susan Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical and Harvard Medical School, Boston, MA (R.K.W.)
          [3 ]Division of Cardiology, Washington University School of Medicine, Saint Louis, MO (K.E.J.M.)
          [4 ]The Ahmanson-UCLA (University of California, Los Angeles) Cardiomyopathy Center, Ronald Reagan UCLA Medical Center (G.C.F.)
          [5 ]Duke Clinical Research Institute, Durham, NC (X.Z., A.D.D., R.A.M., A.F.H.)
          [6 ]Division of Cardiology, Stanford University, Palo Alto, CA (P.A.H.)
          [7 ]Department of Biostatistics and Bioinformatics, Duke University, Durham, NC (R.A.M.)
          [8 ]Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, IL (C.W.Y.).
          Article
          10.1161/CIRCOUTCOMES.118.004729
          6209449
          29946015
          facad17c-1470-4f9d-8ac9-c744690d51cc
          © 2018
          History

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