Based on the beta factors of the previous binary logistic regression, we proposed a formula for predicting the risk of postoperative AKI: model=3.207 + 0.128* hemoglobin change (g/L) -0.463* postoperative albumin level (g/L) +2.609* intraoperative hypotension (Yes, 1; No, 0). This evidence concerns the gene ALB and acute kidney injury.