Prediction of Postoperative Acute Kidney Injury Risk Factors for Acute Type A Aortic Dissection Patients after Modified Triple-Branched Stent Graft Implantation by a Perioperative Nomogram: A Retrospective Study

Table 4

Multivariate analysis of risk factors for AKI.

Item	OR	95% CI	value
Age (years)	1.053	1.015, 1.092	0.006
Malperfusion syndrome (n, %)	11.224	2.474, 50.920	0.002
CR (μmol/L)	1.016	1.005, 1.027	0.004
Cardiopulmonary bypass time (min)	1.009	1.001, 1.016	0.022
Amount of RBC transfusion (U)	1.676	1.403, 2.000	0.000