Table 6.

Discrimination and calibration of the studied scores for predicting complications (original POSSUM criteria) in colorectal patients

	O	E	O:E	Discrimination		Calibration
				AUC (95%CI)	P*	H-L	Df	P**
POSSUM (all)	164	451	0.36	0.525 (0.479–0.571)	0.296	11.459	8	0.177
E-POSSUM (all)	164	439	0.37	0.645 (0.601–0.689)	< 0.001	7.359	8	0.498
E-POSSUM in ≥ 70 years old	61	161	0.38	0.600 (0.522–0.678)	0.013	5.443	8	0.709

431 patients older than 70

Same legend as Table 1