Table. Multivariate Analysis of Characteristics Associated With Undertriage.

Patient and Injury Characteristic	Odds Ratio (95% CI)	P Value
Glasgow Coma Scalea	1.62 (1.53-1.71)	<.001
Respiratory rateb	1.24 (1.19-1.28)	<.001
Systolic blood pressurec	1.14 (1.11-1.18)	<.001
Heart rated	0.97 (0.91-1.04)	.45
Agee	1.07 (1.03-1.10)	<.001
Male	1.39 (1.04-1.85)	.02
Blunt injury	0.65 (0.40-1.05)	.08
Packed red blood cells given in initial 4 hf	1.11 (1.01-1.21)	.03

^aPer 1-point reduction.

^bPer 1 breath more than 22 breaths per minute.

^cPer 5–mm Hg reduction.

^dPer 10–beats per minute increase.

^ePer 5-year increase.

^fPer 1-unit increase.