Risk Factors of Postoperative Acute Kidney Injury and Mortality Among Hospitalized Patients Undergoing Major Surgery

Exclusion Criteria

• •With fewer than two serum creatinine (SCr) measurements during hospitalization, or lack of postoperative SCr assessment
• •With pre-exsiting CKD G5 (including long-term dialysis, prior/current kidney transplantation, or baseline estimated glomerular filtration rate \[eGFR\]\<15mL/min/1.73m\^2) at admission
• •Undergoing radical or partial nephrectomy during current hospitalization
• •Developing AKI prior to surgery or within 24 hours after admission (with admission diagnosis of AKI or meeting AKI criteria within 24 hours)
• •With hospital stay \< 24 hours