Table 3.

Comparing calibration and discrimination of CARM model to predict in-hospital mortality in development and validation datasets

Dataset	Mean predicted risk: alive	Mean predicted risk: died*	Discrimination slope†	Scaled Brier score	AUC (95% CI)	Median imputed AUC (95% CI)
Development dataset	0.047	0.229	0.183	0.175	0.874‡ (0.866 to 0.881)	0.915 (0.888 to 0.941)
Validation dataset	0.053	0.231	0.178	0.165	0.861 (0.852 to 0.869)	0.900 (0.880 to 0.919)

*Died in-hospital following emergency admission.

†Mean predicted risk difference between who discharged died and discharged alive.

‡Corrected optimism (original=0.874 and corrected=0.873).

AUC, area under the curve; CARM, computer-aided risk of mortality.