Skip to main content

Table 1 Patient characteristics (n = 757) and transfusion details

From: Age of red blood cells and mortality in the critically ill

  All patients Quartile 1 Quartiles 2 to 4 P valuea
Age (years) 66 (54 to 76) 65 (50 to 74) 66 (54 to 76) 0.16
Male 468 (62%) 112(59%) 356 (62%) 0.40
Cardiac surgery patients 194 (26%) 51 (26%) 143 (25%) 0.62
Trauma patients 50 (7%) 6 (3%) 44 (7%) 0.03
Sepsis patients 56 (7%) 15 (7%) 41 (7%) 0.74
Received pre-ICU     
   RBCs 333 (44%) 90 (47%) 243 (42%) 0.25
   Platelets 130 (17%) 33 (17%) 97 (17%) 0.90
   FFP 168 (22%) 48 (25%) 120 (21%) 0.22
RBCs transfused 2 (1 to 4) 2 (2 to 3) 2 (2 to 5) <0.0001
Average age of RBCs 14 (9.5 to 21.5) 7.5 (5.7 to 9.0) 17.6 (12.9 to 24.0) <0.0001
Maximum age of RBCs 18 (11 to 28) 8 (6 to 9) 22 (15 to 30) <0.0001
RBCs leukodepleted 599 (79%) 149 (78%) 450 (79%) 0.91
Pretransfusion     
Hemoglobin (g/dl) 7.7 (7.2 to 8.2) 7.6 (7.1 to 8.2) 7.7 (7.2 to 8.2) 0.50
Received platelets 180 (24%) 48 (25%) 132 (23%) 0.55
Received FFP 256 (34%) 57 (30%) 199 (35%) 0.22
ICU length of stay (days) 3.9 (1.9 to 8.6) 3.5 (1.7 to 7.1) 4.2 (1.9 to 9.2) 0.02
Hospital mortality 146 (19.3%) 25 (13%) 121 (21%) 0.015
  1. All values expressed as number (proportion) or median (interquartile range). RBC, red blood cell; FFP, fresh frozen plasma. aQuartile 1 versus Quartiles 2 to 4.