Table 5.

Statistics for severity and number of PTSD symptoms as markersof clinical distress and functional impairment

BSI (significant distress)
Marker	AUC	TPR of 70%		TPR of 80%		TPR of 90%
		Threshold	FPR (95% CI)	Threshold	FPR (95% CI)	Threshold	FPR (95% CI)
Severity of symptoms	0.84 (0.82, 0.85)	10	14% (12%, 20%)	6	27% (23%, 33%)	2	54% (45%, 65%)
Number of symptoms	0.82 (0.80, 0.84)	6	21% (15%, 22%)	4	33% (26%, 41%)	1	63% (50%, 64%)

SF-36 mental summary (functional impairment)
Marker	AUC	TPR of 70%		TPR of 80%		TPR of 90%
		Threshold	FPR (95% CI)	Threshold	FPR (95% CI)	Threshold	FPR (95% CI)
Severity of symptoms	0.74 (0.73, 0.76)	5	30% (29%, 37%)	2	52% (43%, 53%)	0	84% (83%, 85%)
Number of symptoms	0.74 (0.72, 0.75)	4	31% (30%, 40%)	2	49% (48%, 61%)	0	84% (83%, 85%)

AUC=Area under the curve; TPR = True Positive Rate; FPR = False Positive Rate