Table 1.

Performance measures for predicting mortality in patients hospitalized with heart failure.

Performance measure	Model: age only	Model: age +  EFFECT score	Absolute change in performance	Relative change in performance (%)	Model: EFFECT score only	Model: EFFECT score +  age	Absolute change in performance	Relative change in performance (%)
AUC(H)	0.6150	0.7002	0.0852	13.8	0.7004	0.7002	–0.0003	0.0
AUC(CD)	0.6220	0.7225	0.1004	16.1	0.7208	0.7225	0.0016	0.2
AUC(U)	0.6012	0.7001	0.0989	16.4	0.6998	0.7001	0.0003	0.0
GHCI	0.6012	0.6761	0.0748	12.4	0.6741	0.6761	0.0020	0.3
Royston’s D index	0.6566	1.1804	0.5237	79.8	1.1798	1.1804	0.0006	0.1
Chambless R2	0.0500	0.1456	0.0956	191.1	0.1448	0.1456	0.0008	0.5
$R_{\mathit{PM}}^2$	0.1074	0.2392	0.1317	122.6	0.2355	0.2392	0.0037	1.6
$R_D^2$	0.0933	0.2496	0.1563	167.4	0.2494	0.2496	0.0002	0.1
${\rho }_{w,a}^2$	0.1653	0.3408	0.1756	106.2	0.3362	0.3408	0.0046	1.4
R2 (Nagelkerke)	0.1470	0.3894	0.2424	164.8	0.3891	0.3894	0.0003	0.1
$R_{\mathit{IBS}}^2$	0.0398	0.1256	0.0857	215.2	0.1254	0.1256	0.0002	0.1
$R_{\mathit{SH}}^2$	0.0459	0.1382	0.0923	201.3	0.1379	0.1382	0.0003	0.2