The implication of a translational triage tool in mass casualty incidents: part three: a multinational study, using validated patient cards

Table 3 Performance of Triage Systems in round one and TTT in round two

System	Sensitivity	Specificity	Accuracy	PPV	NPV	Over-triage (1-PPV)²	Under-triage (1-Sens)³	LR+	LR−
Sieve	0,983	0,736	0,834	0,713	0,985	0,288	0,017	3,717	0,023
	[0.939,0.995]¹	[0.666,0.796]	[0.787,0.873]	[0.638,0.777]	[0.946,0.996]	[0.223,0.362]	[0.005,0.061]	[2.898,4.769]	[0.006,0.093]
TTT	1	0,368	0,621	0,513	1	0,487	0	1,582	0
	[0.968,1]	[0.3,0.442]	[0.564,0.675]	[0.448,0.578]	[0.943,1]	[0.422,0.552]	[0,0.032]	[1.412,1.772]	[0,0.188]
START	0,917	0,722	0,8	0,688	0,929	0,312	0,083	3,3	0,115
	[0.857,0.953]	[0.656,0.78]	[0.754,0.84]	[0.616,0.751]	[0.877,0.96]	[0.249,0.384]	[0.047,0.143]	[2.621,4.155]	[0.065,0.205]
TTT	0,992	0,657	0,791	0,658	0,992	0,342	0,008	2,89	0,012
	[0.958,0.999]	[0.588,0.719]	[0.744,0.831]	[0.59,0.721]	[0.958,0.999]	[0.279,0.41]	[0.001,0.042]	[2.382,3.505]	[0.002,0.082]
Mixed	0,773	0,495	0,606	0,505	0,766	0,495	0,227	1,53	0,459
	[0.658,0.857]	[0.399,0.592]	[0.53,0.677]	[0.409,0.6]	[0.649,0.853]	[0.4,0.591]	[0.143,0.342]	[1.21,1.935]	[0.282,0.748]
TTT	0,955	0,444	0,648	0,534	0,936	0,466	0,045	1,718	0,102
	[0.875,0.984]	[0.35,0.543]	[0.573,0.717]	[0.444,0.621]	[0.828,0.978]	[0.379,0.556]	[0.016,0.125]	[1.43,2.065]	[0.033,0.316]

PPV positive predictive value, NPV negative predictive value, LR+ positive likelihood ratio, LR− negative likelihood ratio
¹95%—Confidence intervals
²Over-triage calculated as 1- Positive predictive value according to the Cribari matrix
³Under-triage calculated as 1- Sensitivity according to the Cribari matrix

ISSN: 1757-7241