Table 3:

Net Reclassification Index (NRI) and classification improvement indices for predicting postoperative complications and mortality with preoperative and intraoperative input data relative to preoperative input data alone.

			Classification Improvement (%)
Complication	NRI (95% CI)	p	Event	Non-Event	Overall
ICU stay > 48 hours	0.05 (0.03–0.06)	<0.001	−7.9	12.6	6.8
MV duration > 48 hours	0.21 (0.16–0.22)	<0.001	10.9	9.9	10.0
Neurological Complications and Delirium	0.05 (0.03–0.07)	<0.001	2.1	3.1	2.9
Acute Kidney Injury	0.05 (0.04–0.07)	<0.001	−8.7	13.9	9.9
Cardiovascular Complication	0.12 (0.1–0.12)	<0.001	2.3	9.2	7.9
Venous Thromboembolism	0.03 (0.04–0.06)	0.09	−2.7	5.6	4.9
Wound Complication	0.02 (0.01–0.04)	0.14	−2.5	4.1	2.4
Hospital Mortality	0.14 (0.06–0.21)	0.024	2.2	11.5	11.2

CI: confidence interval, ICU: intensive care unit, MV: mechanical ventilation.