Table 4.

Multivariate regression analysis for survival

Covariates	OR	95% CI	P values
Age <60 years	2.70	1.95 to 3.83	<0.001
ISS	1.1	1.01 to 1.21	0.03
ED SBP (mm Hg)	1.09	1.05 to 1.11	0.01
ED heart rate >60 bpm	1.29	1.14 to 1.31	0.02
Penetrating mechanism of injury	4.76	2.97 to 7.60	<0.001
Prehospital CPR	0.76	0.67 to 0.82	0.002
SOL on ED arrival	1.96	1.46 to 2.63	0.015

bpm, beats per minute; CPR, cardiopulmonary resuscitation; ED, emergency department; ISS, Injury Severity Score; SBP, systolic blood pressure; SOL, signs of life