| Covariates | Operation type (vs endocrine): respiratory and hemic; Operation type (vs endocrine): thoracoabdominal aneurysm, embolectomy/thrombectomy, venous reconstruction, endovascular repair; Operation type (vs endocrine): aneurysm; Operation type (vs endocrine): mouth, palate; Operation type (vs endocrine): stomach, intestines; Operation type (vs endocrine): integument; Operation type (vs endocrine): hernia; ASA physical status classification: 3, 4, or 5; ASA physical status classification: 2; Female gender; Work RVU: >17; Work RVU: 10-17; Disseminated cancer; Chemotherapy for malignancy within 30 d of operation; Preoperative serum sodium >145 mmol/L; Transfusion >4 U packed RBCs in 72 h before operation; Ventilator-dependent; Wound class (clean/contaminated); Preoperative hematocrit <=38%; Preoperative bilirubin >1.0 mg/dL; Dyspnea; Albumin <=3.5 mg/dL; Emergency |
