Skip to main content

Table 3 Relation of RBC storage age and outcomes for patients transfused 5 or more units of RBCs and matched for RBC amount between study groups

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

Outcome and maximum RBC age used to determine increased RBC age group Patient number Decreased RBC age Increased
RBC age
Absolute difference in outcome (%) Pvalue
DVT*      
≥ 14 days 50 12.0% (3/25) 32.0% (8/25) 20.0 0.09
≥ 21 days 159 17.1% (14/82) 31.2% (24/77) 14.1 0.04
≥ 28 days 183 16.7 (16/96) 34.5% (30/87) 17.8 0.006
Mortality      
≥ 14 days 56 17.9% (5/28) 21.4 (6/28) 3.5 0.73
≥ 21 days 176 18.2% (16/88) 25.0% (22/88) 6.8 0.27
≥ 28 days 202 13.9% (14/101) 26.7% (27/101) 12.8 0.02
  1. * see text for explanation of difference in patient numbers between number of patients analyzed for deep vein thrombosis (DVT) and mortality outcomes according to maximum red blood cell (RBC) age used to determine study groups.