Table 1 Patient characteristics in group 1 (trauma)
Clinical variables | No acute kidney injury | Acute kidney injury | Total | AKI versus no AKI p value |
|---|---|---|---|---|
Total | 1037 | 877 | 1914 | |
Baseline demographics | ||||
Age, years | 36.8 ± 20.7 | 41.4 ± 19.9 | 38.9 ± 20.4 | <0.01 |
Male sex, n (%) | 678 (65) | 691 (79) | 1369 (72) | <0.01 |
Body mass index, kg/m2 | 25.6 ± 9.2 | 27.6 ± 6.8 | 26.5 ± 8 | <0.01 |
Race, n (%) | ||||
White | 793 (77) | 686 (78) | 1479 (77) | 0.96 |
Hispanic | 91 (9) | 55 (6) | 146 (8) | |
Black | 64 (6) | 56 (6) | 120 (6) | |
Other | 65 (6) | 60 (7) | 125 (7) | |
Unknown | 24 (2) | 20 (2) | 44 (2) | |
Comorbidities, n (%) | ||||
Diabetes mellitus | 34 (5) | 61 (7) | 95 (7.5) | 0.01 |
Cerebrovascular disease | 171 (17) | 227 (26) | 398 (21) | <0.01 |
Chronic kidney disease | 4 (<1) | 14 (2) | 18 (1) | 0.02 |
Injury Severity Score | 23.1 ± 10.0 | 24.3 ± 10.2 | 23.6 ± 10.2 | 0.01 |
ICU events, n (%) | ||||
Mechanical ventilation | 701 (68) | 657 (75) | 1358 (71) | <0.01 |
Sepsis | 235 (23) | 236 (27) | 471 (25) | 0.01 |
Septic shock | 30 (3) | 70 (8) | 100 (5) | <0.01 |
Vasopressors | 89 (9) | 133 (15) | 222 (12) | <0.01 |
Admission status, n (%) | ||||
Direct | 719 (69) | 645 (74) | 1364 (71) | <0.01 |
Transfer | 318 (31) | 232 (26) | 550 (29) | |
Unknown | 4 (<1) | 1 (<1) | 5 (<1) | |
KDIGO stage of acute kidney injury, n (%) | ||||
Stage 0 | 1037 (100) | 0 | 1037 (54) | |
Stage 1 | 0 | 807 (92) | 807 (42) | |
Stage 2 | 0 | 48 (5) | 48 (3) | |
Stage 3 | 0 | 22 (3) | 22 (1) | |