Table 2. Subgroup analysis of CKD group.
| Factors | Overall (n=26) | AKI (n=14) | No AKI (n=12) | P value |
|---|---|---|---|---|
| Baseline characteristics | ||||
| Age (years) | 67.46±8.10 | 68.21±7.81 | 66.58±8.70 | 0.619 |
| Male | 22 (84.62%) | 13 (92.86%) | 9 (75.00%) | 0.208 |
| Female | 4 (15.38%) | 1 (7.14%) | 3 (25.00%) | |
| BMI (kg/m2) | 23.55 (23.00, 24.95) | 23.38 (22.99, 24.68) | 23.69 (22.93, 25.78) | 0.595 |
| Tobacco use | 8 (30.77%) | 5 (35.71%) | 3 (25.00%) | 0.555 |
| Alcohol use | 4 (15.38%) | 2 (14.29%) | 2 (16.67%) | 0.867 |
| Preoperative factors | ||||
| Hypertension | 13 (50.00%) | 8 (57.14%) | 5 (41.67%) | 0.431 |
| MAP (mmHg) | 95.56±10.12 | 96.43±10.07 | 94.56±10.54 | 0.649 |
| Diabetes | 4 (15.38%) | 3 (21.43%) | 1 (8.33%) | 0.888 |
| FBG (mmol/L) | 5.55±1.39 | 5.66±1.71 | 5.43±0.97 | 0.685 |
| SCr (μmol/L) | 124.50 (113.74, 138.38) | 124.50 (116.26, 147.00) | 120.75 (110.64, 138.61) | 0.432 |
| eGFR (mL/min/1.73 m2) | 47.63±9.96 | 45.39±12.23 | 50.24±5.89 | 0.223 |
| Hb (g/L) | 132.27±17.94 | 123.79±18.28 | 142.17±11.76 | 0.006* |
| ALB (g/L) | 41.05±4.08 | 39.29±4.11 | 43.12±3.05 | 0.014* |
| K+ (mmol/L) | 4.09±0.46 | 4.11±0.54 | 4.07±0.37 | 0.847 |
| BUN (mmol/L) | 7.69 (6.50, 8.60) | 6.66 (5.35, 7.77) | 6.07 (5.26, 7.68) | 0.820 |
| R.E.N.A.L score | 7.00 (6.00, 8.25) | 4.00 (2.00, 6.25) | 5.00 (3.00, 6.75) | 0.095 |
| CCI | 5.00 (3.00, 6.25) | 3.00 (1.00, 4.00) | 3.00 (1.00, 4.00) | 0.347 |
| Intraoperative factors | ||||
| Surgical approach | ||||
| Open | 14 (53.85%) | 11 (78.57%) | 3 (25.00%) | 0.006* |
| Laparoscopic | 12 (46.15%) | 3 (21.43%) | 9 (75.00%) | |
| Surgery time (min) | 112.50 (64.00, 180.25) | 148.25 (102.75, 188.25) | 62.00 (52.50, 115.75) | 0.004* |
| Ischemia time (min) | 20.00 (15.00, 23.25) | 20.50 (19.50, 25.25) | 15.00 (8.50, 21.25) | 0.036* |
| Type of ischemia | ||||
| Warm | 1246.15%) | 6 (42.86%) | 6 (50.00%) | 0.561 |
| Cold | 13 (50.00%) | 8 (57.14%) | 5 (41.67%) | |
| Intraoperative fluid | ||||
| Crystalloid (mL) | 1225.00 (1100.00, 1762.50) | 1412.50 (1225.00, 1762.50) | 1100.00 (912.50, 1925.00) | 0.060 |
| Colloid (mL) | 0.00 (0.00, 0.00) | 0.00 (0.00, 500.00) | 0.00 (0.00, 0.00) | 0.131 |
| Total fluid (mL) | 1600.00 (1100.00, 1812.50) | 1672.50 (1225.00, 1862.50) | 1100.00 (912.50, 1925.00) | 0.060 |
| Units transfused (mL) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | 1.000 |
| Mannitol (mL) | 50.00 (0.00, 125.00) | 122.50 (0.00, 125.00) | 0.00 (0.00, 75.00) | 0.060 |
| Tumor maximum diameter (cm) | 3.07 (1.82, 4.02) | 3.41 (1.86, 5.70) | 2.62 (1.66, 3.21) | 0.087 |
| Multifocality | 7 (26.92%) | 4 (28.57%) | 3 (25.00%) | 0.838 |
Continuous variables are presented as medians with quartiles or means with standard deviation. Frequencies with proportions are displayed for categorical variables. The number in parenthesis represents the number of patients with available data. *P<0.05. BMI, body mass index; MAP, mean arterial pressure; FBG, fasted blood glucose; CKD, chronic kidney disease; SCr, serum creatinine; eGFR, estimated glomerular function rate; Hb, hemoglobin; ALB, albumin; BUN, blood urea nitrogen; CCI, Charlson comorbidity index; RRT, renal replacement therapy; ICU, intensive care unit.