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Table 3 Outcome data for groups receiving newer vs. older blood in the blood-prime group

From: Duration of red blood cell storage and outcomes in pediatric cardiac surgery: an association found for pump prime blood

Variable Patients Receiving Newer Blood
(N = 116)
Patients Receiving Older Blood
(N = 76)
P value
Mechanical ventilation time (hours)    
   Median 48 48 0.638
   Interquartile range 13 to 109 11 to 120  
ICU stay (hours)    
   Median 96 96 0.702
   Interquartile range 48 to 150 48 to 192  
Peak creatinine (mg/dL)    
   Median 0.55 0.60 0.334
   Interquartile range 0.40 to 0.90 0.40 to 0.80  
Peak bilirubin (mg/dL)    
   Median 1.3 1.4 0.503
   Interquartile range 0.62 to 2.12 0.79 to 2.00  
Blood loss (mL/12 hours)    
   Median 70 60 0.156
   Interquartile range 40 to 100 30 to 100  
Red blood cells transfusions    
   No. of patients (%) 69 (59) 47 (62) 0.760
Fresh frozen plasma transfusions    
   No. of patients (%) 55 (47) 39 (51) 0.607
Platelets transfusions    
   No. of patients (%) 4 (3.5) 9 (12) 0.024
  1. ICU = intensive care unit.
  2. Continuous variables are summarized by medians and interquartile ranges, and P values were calculated by the Wilcoxon rank-sum test; categorical variables are summarized by numbers and percentages, and P values were calculated by the Pearson's chi-square test.