Table 4. Diagnostic accuracy of CPS and external validation at various score cut-off points.

CPS				External validation
Scores	Sensitivity	Specificity	AUROC	Sensitivity	Specificity	AUROC
< -2 vs. > = -2	100	0	0.764	100.0	0.0	0.766
< -1 vs. > = -1	81.4	53.6		80.8	41.4
< 0 vs. > = 0	64.8	81.0		72.4	84.7
< 1 vs. > = 1	23.6	91.6		39.8	92.5
< 2 vs. > = 2	4.4	98.8		11.8	98.5
< 3 vs. > = 3	1.1	99.9		2.8	99.9
< 4 vs. > = 4	0.4	100.0		0.9	100.0