Table 3. Comparison of clinical and laboratory characteristics at admission between patients with and without acute kidney injury (AKI).
| Variables | Without AKI | With AKI | P | ||
|---|---|---|---|---|---|
| Median | IQR / % | Median | IQR / % | ||
| Hemoglobin (g/dl) (X/SD) | 13.7 | (12.6-14.8) | 13.5 | (11.5-14.5) | 0.689 |
| White blood cells (/μl) (x1000) | 10.3 | (7.7-14.8) | 13.7 | (9.8-19.7) | < 0.001 |
| Total lymphocytes (/μl) | 950 | (578-1,322) | 924 | (568-1,551) | 0.571 |
| Platelets (/μl) (x1000) | 244 | (187-307) | 263 | (210-332) | 0.333 |
| Serum glucose (mg/dl) | 125 | (96-169) | 146 | (120-210) | 0.001 |
| Serum creatinine (mg/dl) | 0.7 | (0.6-0.8) | 1.3 | (0.8-2.1) | < 0.001 |
| C-reactive protein (mg/dl) | 95 | (48-185) | 109 | (83-192) | 0.025 |
| Ferritin (ng/dl) | 615 | (349-904) | 848 | (471-1,000) | < 0.001 |
| D-dimer (ng/dl) | 760 | (365-1,965) | 1,420 | (670-4,140) | < 0.001 |
| Procalcitonin (ng/dl) | 0.10 | (0.05-0.26) | 0.29 | (0.11-1.09) | < 0.001 |
| PaO2/FiO2 | 170 | (101-266) | 124 | (84-180) | 0.005 |
| Index CT severity | 19 | (14-22) | 24 | (21-25) | < 0.001 |
| Invasive ventilation | 41 | 20.1% | 67 | 65.0% | < 0.001 |
| Use of norepinephrine | 22 | 10.8% | 58 | 56.3% | < 0.001 |
IQR = interquartile range; SD = standard deviation; CT = chest tomography; PaO2 = partial pressure of oxygen; FiO2 = fraction of inspired oxygen.