| Variable | All patients (n=194) | Patients without metabolic acidosis (n=42) | Patients with metabolic acidosis (n=152) | P-value |
|---|---|---|---|---|
| Age (yr) | 63.8±10.5 | 62.9±10.4 | 64.3±10.4 | 0.422 |
| Male sex | 161 (83.0) | 37 (88.1) | 124 (81.6) | 0.320 |
| History of | ||||
| Diabetes mellitus | 30 (15.5) | 4 (9.5) | 26 (17.1) | 0.229 |
| Hypertension | 83 (42.8) | 14 (33.3) | 69 (45.4) | 0.162 |
| Preoperative laboratory findings | ||||
| Total CO2 (mEq/L) | 25.6±1.9 | 26.6±1.9 | 25.4±1.9 | <0.001 |
| Sodium (mEq/L) | 141.2±2.4 | 141.0±2.7 | 141.3±2.4 | 0.437 |
| Potassium (mEq/L) | 4.4±0.4 | 4.4±0.4 | 4.4±0.4 | 0.631 |
| Chloride (mEq/L) | 103.6±7.9 | 101.3±16.2 | 104.2±2.8 | 0.251 |
| Blood urea nitrogen (mg/dL) | 16.0±5.9 | 15.1±5.1 | 16.3±6.1 | 0.264 |
| Creatinine (mg/dL) | 1.1±0.3 | 1.1±0.3 | 1.1±0.3 | 0.558 |
| Albumin (g/dL) | 4.1±0.4 | 4.0±0.5 | 4.2±0.3 | 0.030 |