Table 2:

Patient Characteristics by Transfusion Status for ISS >15

	Transfusion (n = 22)	No transfusion (n = 24)	p-value
Age (years)	76.5 ± 9.2	77.9 ± 11.1	0.65
Sex (female)	13 (59.1%)	15 (62.5%)	0.06
INR	1.1 ± 0.1	1.1 ± 0.32	0.88
Platelet count	245.1 ± 78.5	208.8 ± 78.5	0.12
APM
Aspirin	20 (90.9%)	19 (79.2%)	0.06
Clopidogrel	9 (40.9%)	8 (33.3%)	0.92
Dual APM	8 (36.4%)	4 (16.7%)	0.16
Other	1 (4.5%)	1 (4.3%)	0.95
Type of TBI
SDH	3 (13.6%)	10 (41.7%)	0.04
EDH	1 (4.5%)	1 (4.2%)	0.95
IVH/SAH	8 (63.6%)	10 (41.7%)	0.71
IPH	14 (63.6%)	16 (66.7%)	0.83
ISS	23.9 ± 9.4	22.2 ± 11.8	0.59
AIS
Head	0.64 ± 1.2	0.92 ± 1.1	0.41
TBI	4.1 ± 0.29	3.9 ± 0.58	0.21
CT Score	2.41 ± 0.73	2.09 ± 0.43	0.08
Hospital LOS (days)	7.6 ± 4.9	4.1 ± 3.3	<0.01
ICU LOS (days)	4.1 ± 2.5	1.3 ± 1.2	<0.01
Craniectomy / -otomy	6 (27.3%)	0 (0%)	<0.01
Mortality	2 (9.1%)	1 (4.2%)	0.50

N (column %) or mean ± sd are shown, INR = international normalized ratio, APM = antiplatelet medication, TBI = traumatic brain injury, SDH = subdural hematoma, EDH = epidural hematoma, IVH = intraventricular hemorrhage, SAH = subarachnoid hemorrhage, IPH = intraparenchymal hemorrhage or cerebral contusion, ISS = injury severity score, AIS = abbreviated injury score, CT Score = Marshall score from computed tomography, LOS = length of stay, ICU = intensive care unit.