1. Effect of intensive care unit environment on in-hospital delirium after cardiac surgery 
Benjamin G. Arenson, BSc, Lindsey A. MacDonald, BSc, Hilary P. Grocott, MD, FRCPC, Brett M. Hiebert, MSc, Rakesh C. Arora, MD, PhD, FRCSC 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 146, Issue 1, Pages (July 2013)
DOI: /j.jtcvs
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
A, Photograph of environment 1 (E1) intensive care unit. B, Photograph of environment 2 (E2) intensive care unit.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
Prevalence of in-hospital delirium after cardiac surgery according to intensive care unit (ICU) environment. Patients were admitted to environment 1 (E1) from May to October 2010 and to environment 2 (E2) from May to October Prevalence of delirium was not significantly different between E1 and E2.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

4. Figure 3
Initial onset of in-hospital delirium after cardiac surgery by postoperative day. E1, Environment 1; ICU, intensive care unit; E2, environment 2.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions