Table 4.

The best cutoff point with its sensitivity and specificity that could predict the risk of mortality among the trauma patients.

Variables		Best Cutoff Point	Sensitivity (%)	Specificity (%)	AUC
TRISS	All patients	1	88.4	83.3	0.93
	Head injury	0.9	84.2	81.7	0.89
	No head injury	0.9	93.1	75.8	0.92
rSIG	All patients	14.8	92.9	65.9	0.83
	Head injury	14.8	86.8	70.7	0.82
	No head injury	14	94.5	61.5	0.83
RTS	All patients	7.7	90.7	75.1	0.85
	Head	6.5	88.5	71.6	0.85
	No Head	7.7	92.7	69.6	0.83
SI	All patients	0.8	88.3	28.5	0.57
	Head injury	0.7	75.4	36.2	0.53
	No head injury	0.8	86.9	38.1	0.63

rSIG = rSI multiplied by GCS score; RTS = revised trauma score; SI = shock index; TRISS = the trauma and injury severity score.