| No acute kidney injury | Risk | Injury | Failure |
---|---|---|---|---|
n | 1,766 (32.8%) | 670 (12.4%) | 1,436 (26.7%) | 1,511 (28.1%) |
Sex (male) | 988 (55.9%) | 372 (55.5%) | 841 (58.6%) | 570 (57.0%) |
Age (years)* | 56.6 (18.2) | 63.4 (17.0) | 62.6 (16.6) | 62.1 (16.4) |
Race (n = 5,101)** | Â | Â | Â | Â |
   White | 1,491 (89.5%) | 587 (91.3%) | 1,237 (90.7%) | 1,255 (87.9%) |
   Black | 146 (8.8%) | 45 (7.0%) | 111 (8.1%) | 156 (10.9%) |
   Other | 29 (1.7%) | 11 (1.7%) | 16 (1.2%) | 17 (1.2%) |
Chronic kidney insufficiency* | 17 (1.0%) | 4 (0.6%) | 17 (1.2%) | 121 (8.0%) |
Admission type* (n = 5,375) | Â | Â | Â | Â |
   Medical | 778 (44.2%) | 277 (41.4%) | 566 (39.4%) | 545 (36.1%) |
   Surgical | 984 (55.8%) | 392 (58.6%) | 870 (60.6%) | 963 (63.9%) |
Reason for admission according to organ system* (n = 5,375) | Â | Â | Â | Â |
   Cardiovascular disease | 446 (25.3%) | 236 (35.3%) | 446 (31.1%) | 513 (34.0%) |
   Neurological disease | 311 (17.7%) | 109 (16.3%) | 314 (21.9%) | 327 (21.7%) |
   Pulmonary disease/infection | 226 (12.8%) | 101 (15.1%) | 232 (16.2%) | 291 (19.3%) |
   Trauma | 317 (18.0%) | 85 (12.7%) | 203 (14.1%) | 163 (10.8%) |
   Malignancy | 117 (6.6%) | 34 (5.1%) | 38 (2.6%) | 35 (2.3%) |
   Gastrointestinal disease | 67 (3.8%) | 22 (3.3%) | 32 (2.2%) | 26 (1.7%) |
   Other | 278 (15.8%) | 82 (12.3%) | 171 (11.9%) | 153 (10.1%) |
APACHE III score* (n = 3,400) | 36 (26–47) | 46 (35–57) | 46 (36–58) | 56 (41–73) |
SOFA score* | 5.1 (3.3) | 6.3 (4.0) | 6.8 (4.1) | 7.8 (4.5) |
SOFAnonrenal score* | 4.5 (3.1) | 5.3 (3.5) | 5.6 (3.5) | 5.9 (3.9) |
SOFA RIFLEmax score* (n = 4,994) | 3.7 (3.2) | 5.3 (3.8) | 5.9 (3.8) | 6.7 (4.3) |
SOFAnonrenal RIFLEmax score* (n = 4,994) | 3.2 (2.8) | 4.5 (3.5) | 5.0 (3.4) | 5.0 (3.7) |
Inhospital before ICU admission* | 527 (29.8%) | 243 (36.3%) | 476 (33.1%) | 592 (39.2%) |
Pre-ICU LOS* (days) | 1 (1–4) | 2 (1–4) | 2 (1–5) | 2 (1–6) |
Time to RIFLEmax* (days) |  | 2 (1–3) | 2 (1–4) | 2 (1–7) |
RIFLE class on glomerular filtration rate criteria* | Â | 463 (69.1%) | 929 (64.7%) | 1,110 (73.5%) |