Table 3.

Akaike's Information Criterion (AIC) and Discriminant Abilities for Each Model

Predictor variables used for each regression model	AIC	AUROCC
ISS, RTS, cAGE (original TRISS)	1988	0.9627
ISS, RTS, cAGE	1788	0.9637
ISS, cAGE, cSBP, cGCS, cRR	1791	0.9637
cISS, cAGE, cSBP, cGCS, cRR	1732	0.9648
cISS, cAGE, cSBP, cGCS	1748	0.9649
cISS, cAGE, cGCS, cRR	1819	0.9609
cISS, cSBP, cGCS, cRR	1846	0.9561
cISS, cSBP, cGCS,	1854	0.9562
cAGE, cSBP, cGCS, cRR	1987	0.9503
cAGE, cSBP, cGCS	2000	0.9465
cISS, cAGE, cGCS	2001	0.9547
cISS, cAGE, cSBP, cRR	2017	0.9481
cISS, cAGE, cBP	2024	0.9433

AUROCC: The area under the receiver-operating characteristic curve,

cAGE: coded value of age, RTS: the Revised Trauma Score, cBP: coded value of systolic blood pressure,

cGCS: coded value of the Glasgow Coma Scale score, cRR: coded value of respiratory rate,

ISS: the Injury Severity Score, cISS: coded value of the Injury Severity Score