TABLE II -. Performance of risk models in patient subsets.

Data set	No. of Patients	Actual	AES				LES				EuroSCORE II				STS
			Predicted	ROC	H-L p value		Predicted	ROC	H-L p value		Predicted	ROC	H-L p value		Predicted	ROC	H-L p value
AES = additive EuroSCORE; AVR = aortic valve replacement; CABG = coronary artery bypass grafting; DVR = double valve replacement; LES = logistic EuroSCORE; MVR = mitral valve replacement; ROC = receiver operating characteristic; STS = Society of Thoracic Surgeons (STS).
All	576	4.86	5.16	0.819	0.184		6.96	0.819	0.233		4.94	0.816	0.552		2.13	0.812	0.290
MVR	247	2.83	4.40	0.881	0.335		5.46	0.877	0.495		3.12	0.898	0.689		1.87	0.882	0.319
AVR	137	2.91	4.44	0.721	0.390		4.93	0.722	0.634		2.49	0.747	0.660		1.29	0.635	0.116
DVR	86	2.32	3.98	0.619	0.431		4.09	0.699	0.371		2.76	0.637	0.346		–	–	–
CABG + MVR	57	1.84	9.30	0.755	0.726		17.30	0.736	0.756		18.22	0.773	0.133		4.84	0.657	0.884
CABG + AVR	49	1.88	8.26	0.587	0.156		13.12	0.581	0.102		9.36	0.521	0.118		2.64	0.775	0.480