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Table 1 Comparison of variables between patients transfused RBCs of decreased and increased storage age for patients transfused 5 or more units of RBCs

From: Duration of red blood cell storage is associated with increased incidence of deep vein thrombosis and in hospital mortality in patients with traumatic injuries

Variables Decreased RBC age group (n = 101) Increased RBC age group (n = 101) Pvalue
Age 48.0 (27.0 to 60.5) 45.0 (27.0 to 63.0) 0.83
Male% 78/101 (77.2%) 73/101 (72.3%) 0.42
Race (W, B, H, AP, O)% (76.2, 6.9, 9.9, 2.0, 5.0) (82.2, 5.9, 8.9, 0, 3.0) 0.58
Blunt injury 90/101 (89.1%) 97/101 (96.0%) 0.05
Glasgow Coma Score 14.0 (3.0 to 15.0) 14.0 (3.0 to 15.0) 0.48
Systolic blood pressure 126.0 (103.0 to 141.0) 123.0 (99.3 to 143.0) 0.57
Heart rate 100.0 (80.0 to 120.0) 99 (79.5 to 120.0) 0.57
Temperature (F) 96.5 (95.6 to 97.4) 96.5 (95.2 to 98.0) 0.75
HCO3 21.0 (19.0 to 23.0) 21 (19.3 to 23.8) 0.81
pH 7.3 (7.2 to 7.4) 7.3 (7.2 to 7.4) 0.37
Prothrombin time (seconds) 13.0 (12.2 to 14.5) 13.2 (12.2 to 14.2) 0.91
Hematocrit (%) 36.9 (32.9 to 39.2) 36.1 (31.1 to 39.6) 0.32
Heparin IV (%)* 14/101 (13.9%) 19/101 (18.8%) 0.34
Heparin SC (%)* 48/101 (47.5%) 51(101) (50.1%) 0.67
Enoxaparin SC (%)* 21/101 (20.8%) 25/101 (24.8%) 0.50
Pneumatic compression device (%)* 79/101 (78.2%) 72/101 (71.3%) 0.26
Long bone fracture (%) 46/101 (45.5%) 48/101 (47.5%) 0.78
Spinal cord injury (%) 5/101 (5.0%) 10/101 (9.9%) 0.28
RBC amount (Units) 9.0 (6.0 to 12.5) [10.5, 6.0] 9.0 (6.0 to 12.0) [10.4, 5.9] 0.95
RBC leukoreduced% 50.0 (25.8 to 85.7) 62.5 (37.3 to 83.3) 0.49
Maximum RBC storage age (days) 19.0 (16.0 to 24.0) 34.0 (31.0 to 38.0) < 0.001
Median RBC storage age (days) 14.0 (11.0 to 17.0) 20.5 (15.5 to 26.0) < 0.001
FFP (Units) 0.0 (0.0 to 4.0) [2.5] 0.0 (0.0 to 4.0) [2.5] 0.82
aPLT (Units) 0.0 (0.0 to 0.0) [0.2] 0.0 (0.0 to 0.5) [0.2] 0.24
Cryoprecipitate (Units) 0.0 (0.0 to 0.0) [.1] 0.0 (0.0 to 0.0) [0.1] 0.44
Injury Severity Score 24.0 (14.0 to 34.0) 24 (13.5 to 33.5) 0.82
  1. Data presented as median (interquartile range [mean] or as percentages
  2. * indicates deep vein thrombosis prophylaxis methods prescribed
  3. AP: Asian/Pacific Islander; aPLT: apheresis platelets; B: black; FFP: fresh frozen plasma; GCS: Glasgow Coma Score; H: hispanic; IV: intravenous; O: Other; RBC: red blood cell; SC: subcutaneous; W: white.