Table 2.
Comparison of clinical parameters between patients with and without acute kidney injury.
| Total (n = 400) | AKI (n = 78) | Non-AKI (n = 322) | P value | |
|---|---|---|---|---|
| Hemothorax, n (%) | 150 (38) | 39 (50) | 111 (35) | .016 |
| Pneumothorax, n (%) | 174 (43) | 41 (53) | 133 (41) | .094 |
| Rib fracture (s), n (%) | 314 (79) | 66 (85) | 248 (77) | .442 |
| Abdominal solid organ injury, n (%) | 210 (53) | 37 (47) | 173 (54) | .405 |
| Intestinal injury, n (%) | 52 (13) | 25 (32) | 27 (8) | <.001 |
| Transfusion 4 hours, n (%) | 213 (53) | 59 (76) | 154 (48) | <.001 |
| pRBC transfusions (U) 4 h, median (IQR) | 0 (0–3) | 4 (0–10) | 0 (0–2) | <.001 |
| Total volume of infused fluid 24 h (L), median (IQR) | 4.7 (3.4–6.6) | 6.4 (4.2–8.3) | 4.3 (3.3–6.0) | <.001 |
| Cumulative fluid balance at 24 hours (L), median (IQR) | 1.9 (.7–3.6) | 3.6 (2.2–5.6) | 1.6 (.5–2.9) | <.001 |
| Hypotension, n (%) | 120 (30) | 39 (50) | 81 (25) | <.001 |
| Use of vasopressor, n (%) | 129 (32) | 53 (68) | 76 (24) | <.001 |
| In-hospital mortality, n (%) | 52 (13) | 26 (33) | 26 (8) | <.001 |
Values are presented as n (%) or median [interquartile range].
AKI = acute kidney injury, pRBC = packed red blood cell.