ALB and acute kidney injury: Conversely, hypertension (OR 2.400, 95%CI 1.180–4.883, p = 0.016), preoperative albumin level (OR 0.488, 95%CI 0.242–0.987, p = 0.046), and synthetic colloids infusion (OR 4.871, 95%CI 1.122–21.148, p = 0.035) were significantly associated with AKI after surgery (Table 3).