Table 2.

Results of 10-fold cross-validation of combined tools.

	Averaged AUROC
	AIS 98	AIS 2008
TRISS (ISS)	0.910	0.911
TRISS (NISS)	0.914	0.911
ASCOT	0.915	0.917
TRISS (MTOS)	0.901	*
ASCOT (MTOS)	0.911	*

AUROC: area under the Receiver Operating Characteristic curve

MTOS: Major Trauma Outcome Study

^*:The coefficients based on the AIS 2008 are not available for both the TRISS and ASCOT.