Table 2.

Improved model performance over the euro SCORE II for mortality in the derivation cohort.

Statistic	Estimate	95% CI		p value	Statistic	Estimate	95% CI		p value
NRI (Controls)	−0.100	−0.144	−0.056	0	IDI (Controls)	2.885	2.715	3.054	0
NRI (Cases)	0.378	0.130	0.627	0.003	IDI (Cases)	−4.605	−5.719	−3.490	0
NRI (Overall)	0.278	0.026	0.531	0.031	IDI (Overall)	−1.720	−2.848	−0.593	0.003

CI, confidence interval; NRI, net reclassification improvement; IDI, integrated discrimination improvement. Performance improvement compared with Euro SCORE II.