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Table 2 Consumption of blood products day 1-10 after the trauma incident for patients admitted in the first six months of 2002, 2004 and 2007.

From: Trends in transfusion of trauma victims - evaluation of changes in clinical practice

  First six months of 2002 First six months of 2004 First six months of 2007 Relevant p-values
Number of patients transfused with erythrocytes day 1-10     
N (% of whole trauma population) 88 (28%) 96 (28%) 107 (23%)  
Consumption of erythrocytes     
Total (median, mean units per. patient) 842 (5, 9.4) 834 (7.5, 8.7) 729 (5, 6.8) 2002 vs 2007: p = 0.056
Number of patients given plasma     
Total (percentage of transfused patients) 26 (30%) 37 (39%) 44 (41%) 2002 vs 2004: p = 0.38
     2004 vs 2007: p = 0.26
Consumption of plasma     
Total (median, mean units per. patient) 162 (4.5, 6.2) 270 (4, 7.3) 296 (4, 6.7)  
Number of patients given trombocytes     
Total (percentage of transfused patients) 15 (17%) 19 (22%) 22 (21%) 2002 vs 2004: p = 0.71
Consumption of trombocytes     
Total (median, mean units per. patient) 51.5 (3, 3.4) 77 (2, 3.6) 77.5 (2, 3.5)  
Total units of erythrocytes consumed by massively transfused patients day 1-2     
Total (% of total consumption) 283 (33.6%) 356 (42.7%) 171 (23,5%)  
No of erythrocyte unites per massively transfused patient     
  21.8 18.7 19.0  
  1. The table lists total consumption and relevant data for the subgroup of patients receiving the different types of blood products. For comparing consumption of erythrocytes, plasma and trombocytes Mann-Whitney test was employed. Both median and mean values are reported.