1. Increased Emergency Department Use in Illinois After Implementation of the Patient Protection and Affordable Care Act 
Scott M. Dresden, MD, MS, Emilie S. Powell, MD, MS, Raymond Kang, MA, Megan McHugh, PhD, Andrew J. Cooper, MPH, Joe Feinglass, PhD 
Annals of Emergency Medicine 
Volume 69, Issue 2, Pages (February 2017)
DOI: /j.annemergmed
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

2. Figure 1
Monthly Illinois ED visits for patients aged 18 to 64 years by disposition from the ED (2011 to 2015).
*P value for change in interrupted time series analysis slope coefficient <.05.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

3. Figure 2
Monthly Illinois ED visits for patients aged 18 to 64 years by primary payer (2011 to 2015).
*P value for interrupted time series analysis slope coefficient <.05.
†P value for change in interrupted time series analysis intercept coefficient <.05.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions

4. Figure 3
Monthly Illinois ED visit rates per 1,000 residents by primary payer (2011 to 2015).
*P value for interrupted time series analysis slope coefficient <.05.
Annals of Emergency Medicine  , DOI: ( /j.annemergmed )
Copyright © 2016 American College of Emergency Physicians Terms and Conditions