TABLE 3.

Comparison of the discrimination of risk scores calculated at baseline and at first follow-up using Harrell's c-statistic

	Baseline C-index (95% CI)	Follow-up C-index (95% CI)
REVEAL 2.0	0.619 (0.584–0.654)	0.720 (0.683–0.757)
REVEAL Lite 2	0.610 (0.571–0.649)	0.730 (0.691–0.769)
ESC/ERS risk score in three strata	0.605 (0.566–0.644)	0.682 (0.633–0.731)
ESC/ERS risk score in four strata	0.643 (0.602–0.684)	0.743 (0.696–0.790)
Number of low-risk criteria (out of four)	0.617 (0.574–0.660)	0.635 (0.574–0.696)
Number of noninvasive low-risk criteria (out of three)	0.589 (0.552–0.626)	0.710 (0.669–0.751)

ESC/ERS: European Society of Cardiology/European Respiratory Society.