Emergency Department Utilization After the Implementation of Massachusetts Health Reform Peter B. Smulowitz, MD, MPH, Robert Lipton, PhD, J. Frank Wharam, MB, MPH, Leon Adelman, MD, Scott G. Weiner, MD, MPH, Laura Burke, MD, Christopher W. Baugh, MD, MBA, Jeremiah D. Schuur, MD, MHS, Shan W. Liu, MD, MPH, Meghan E. McGrath, MD, Bella Liu, BA, Assaad Sayah, MD, Mary C. Burke, MD, MHA, J. Hector Pope, MD, Bruce E. Landon, MD, MBA Annals of Emergency Medicine Volume 58, Issue 3, Pages 225-234.e1 (September 2011) DOI: 10.1016/j.annemergmed.2011.02.020 Copyright © 2010 American College of Emergency Physicians Terms and Conditions
Figure 1 Timeline of Massachusetts health reform and study periods. Annals of Emergency Medicine 2011 58, 225-234.e1DOI: (10.1016/j.annemergmed.2011.02.020) Copyright © 2010 American College of Emergency Physicians Terms and Conditions
Figure 2 Billings ED classification and Ballard severity classification. Billings Algorithm used with permission of the Commonwealth Fund. Annals of Emergency Medicine 2011 58, 225-234.e1DOI: (10.1016/j.annemergmed.2011.02.020) Copyright © 2010 American College of Emergency Physicians Terms and Conditions
Figure 3 Overall ED visit volume. Annals of Emergency Medicine 2011 58, 225-234.e1DOI: (10.1016/j.annemergmed.2011.02.020) Copyright © 2010 American College of Emergency Physicians Terms and Conditions
Figure 4 Low severity ED visit volume. Annals of Emergency Medicine 2011 58, 225-234.e1DOI: (10.1016/j.annemergmed.2011.02.020) Copyright © 2010 American College of Emergency Physicians Terms and Conditions