Table 2.

Performance of the pre-hospital medical assessment in the Graded group using ACSCOT and TRENAU definition

	Number	ISS more than 15	Sensitivity	Specificity	PPV	NPV
		number (%)	% (95% CI)	% (95% CI)	% (95% CI)	% (95% CI)
ACSCOTa	2572	1191 (46)	83 (80 to 85)	23 (21 to 26)	48 (46 to 51)	61 (56 to 65)
TRENAUb	2572	1191 (46)	92 (90 to 93)	41 (39 to 44)	58 (55 to 60)	85 (82 to 87)

^aAdequate triage of the ACSCOT: a trauma patient with ISS more than 15 admitted to a Level I or II trauma center; ^badequate triage of the TRENAU: a trauma patient with ISS more than 15 admitted to a Level I or II trauma center, or admitted to a Level-III without secondary transfer to a Level I or II. CI: confidence interval; ISS, injury severity score; PPV: positive predictive value; NPV: negative predictive value.