Fig. 2

A linear relationship between CPB time and postoperative AKI was observed. Adjusting for adjusted for age; gender; BMI; smoking history; aortic cross clamp time; nasopharyngeal temperature at circulatory arrest; combined with aortic bypass surgery; AMI; intraoperative transfusion of PRBCs; renal artery dissection or occlusion; Penn class; kidney malperfusion; preoperative shock; Bentall+TAR+FET. In this figure, the red line indicates the estimated risk of acute kidney injury, and the dotted lines represent pointwise 95% CI