Table 4.

Cox proportional hazards model for in-hospital mortality.

Variable	HR	P-value	95% Confidence Interval
Age	1.038	<0.001	(1.024 – 1.052)
ISS	1.023	0.002	(1.008 – 1.038)
Arrival GCS	0.803	<0.001	(0.749 – 0.861)
Arrival base deficit	1.029	0.154	(0.989 – 1.069)
Arrival INR	0.958	0.820	(0.659 – 1.392)
Penetrating injury	2.362	0.011	(1.213 – 4.599)
Non-transfused	-	-	-
Low ratio	1.661	0.079	(0.943 – 2.925)
High ratio	3.402	0.001	(1.693 – 6.833)

ISS = injury severity score; GCS = Glasgow coma score; INR = international normalized ratio. N=336. In-hospital mortality outcome occurred in 107 cases. Harrell’s C = 0.829.