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

Table 3 Characteristics and survival rates for the population of patients that were massively transfused day 1-2 after admittance.

	First six months of 2002	First six months of 2004	First six months of 2007
Number of patients	13	19	9
Proportion of all transfused patients (%)	13/62 (21%) **	19/74 (26%)*/	9/94 (10%)*
Age
Mean (SD)	33.5 (21.7)	34.8 (16.5)	45.2 (14.0)
Gender (male)
N (%)	10 (76.9%)	15 (75.0%)	14 (73.7%)
Non-survival
N (%)	4 (30.8%)	8 (40.0%)	3 (33.3%)
ISS
Mean (SD)	38.5 (18.2)	42.0 (16.6)	41.1 (11.2)
RTS
Mean (SD)	5.5 (2.0)	5.2 (2.2)	5.9 (1.8)
		* p = 0.002	** p = 0.10

Massive transfusion is defined as transfusion of more than 10 units of erythrocytes in 24 hours. ISS = Injury Severity Score. RTS = Revised Trauma Score. Fisher's exact test was used for comparing frequencies.

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