1. Blood Transfusion After Pediatric Cardiac Surgery Is Associated With Prolonged Hospital Stay 
Joshua W. Salvin, MD, MPH, Mark A. Scheurer, MD, Peter C. Laussen, MBBS, David Wypij, PhD, Angelo Polito, MD, Emile A. Bacha, MD, Frank A. Pigula, MD, Francis X. McGowan, MD, John M. Costello, MD, MPH, Ravi R. Thiagarajan, MBBS, MPH 
The Annals of Thoracic Surgery 
Volume 91, Issue 1, Pages (January 2011)
DOI: /j.athoracsur
Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
This graph demonstrates the proportion of all patients exposed to a red blood cell transfusion (black bars) on each postoperative day. Among patients requiring red blood cells, the majority (89%) received their first transfusion within the first 48 postoperative hours. (Gray bars = no transfusion.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
This box plot demonstrates the median hospital length of stay (LOS) for patients across the red blood cell transfusion exposure groups. Patients in the high transfusion group had longer median length of stay than did patients in the low transfusion group or nontransfusion group (Mann-Whitney U p < 0.001).
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions