Characteristics of patients with AKI, patients that died and all patients
| Variable, n (%) | AKI (n=696) | Died (n=347) | Total (n=3716) |
| Age (years) | |||
| <45 | 86 (12.4) | 7 (2.0) | 980 (26.4) |
| 45–65 | 245 (35.2) | 55 (15.9) | 1310 (35.3) |
| >65 | 365 (52.4) | 285 (82.1) | 1426 (38.4) |
| Sex (male) | 420 (60.3) | 202 (58.2) | 1855 (49.9) |
| Race | |||
| White | 407 (58.5) | 242 (69.7) | 2091 (56.3) |
| Black | 110 (15.8) | 50 (14.4) | 568 (15.3) |
| Hispanic | 22 (3.2) | 9 (2.6) | 135 (3.6) |
| Asian | 27 (3.9) | 8 (2.3) | 140 (3.8) |
| Other | 130 (18.7) | 38 (11.0) | 782 (21.0) |
| Diabetes | 197 (28.3) | 87 (25.1) | 727 (19.6) |
| Cardiovascular disease | 67 (9.6) | 49 (14.1) | 231 (6.2) |
| Hypertension | 135 (19.4) | 65 (18.7) | 484 (13.0) |
| Heart failure | 39 (5.6) | 38 (11.0) | 134 (3.6) |
| Medical conditions (number) | |||
| 0 | 397 (57.0) | 189 (54.5) | 2565 (69.0) |
| 1 | 190 (27.3) | 95 (27.4) | 811 (21.8) |
| 2 | 83 (11.9) | 47 (13.5) | 264 (7.1) |
| 3+ | 26 (3.7) | 16 (4.6) | 76 (2.0) |
| Body mass index (kg/m2) | |||
| <25 | 165 (23.7) | 115 (33.1) | 833 (22.4) |
| 25–30 | 229 (32.9) | 110 (31.7) | 1334 (35.9) |
| >30 | 302 (43.4) | 122 (35.2) | 1549 (41.7) |
| Temperature (°F) | |||
| 97–100.4 | 423 (60.8) | 201 (57.9) | 2745 (73.9) |
| <97 | 35 (5.0) | 22 (6.3) | 190 (5.1) |
| >100.4 | 238 (34.2) | 124 (35.7) | 781 (21.0) |
| Heart rate (beats/min) | |||
| 60–110 | 576 (82.8) | 274 (79.0) | 3194 (86.0) |
| <60 | 61 (8.8) | 30 (8.6) | 275 (7.4) |
| >110 | 59 (8.5) | 43 (12.4) | 247 (6.6) |
| Systolic blood pressure (mm Hg) | |||
| 90–180 | 635 (91.2) | 305 (87.9) | 3549 (95.5) |
| <90 | 48 (6.9) | 35 (10.1) | 117 (3.1) |
| >180 | 13 (1.9) | 7 (2.0) | 50 (1.3) |
| Respiratory rate (per minute) | |||
| <20 | 245 (35.2) | 92 (26.5) | 1692 (45.5) |
| >20 | 364 (52.3) | 202 (58.2) | 1237 (33.3) |
| NA (missing) | 87 (12.5) | 53 (15.3) | 787 (21.2) |
| White blood cell (109/L) | |||
| 3.5–11 | 428 (61.5) | 189 (54.5) | 2942 (79.2) |
| <3.5 | 39 (5.6) | 26 (7.5) | 267 (7.2) |
| >11 | 229 (32.9) | 132 (38.0) | 507 (13.6) |
| Haemoglobin (g/L) | |||
| 12+ | 201 (28.9) | 138 (39.8) | 2250 (60.5) |
| 10–12 | 204 (29.3) | 88 (25.4) | 883 (23.8) |
| <10 | 291 (41.8) | 121 (34.9) | 583 (15.7) |
| Platelets (109/L) | |||
| >100 | 643 (92.4) | 310 (89.3) | 3600 (96.9) |
| <100 | 53 (7.6) | 37 (10.7) | 116 (3.1) |
| C reactive protein (mg/L) | |||
| <50 | 197 (28.3) | 62 (17.9) | 1706 (45.9) |
| 50–100 | 149 (21.4) | 63 (18.2) | 1011 (27.2) |
| >100 | 350 (50.3) | 222 (64.0) | 999 (26.9) |
| Ferritin (µg/L) | |||
| <250 | 105 (15.1) | 52 (15.0) | 950 (25.6) |
| 250–1000 | 327 (47.0) | 155 (44.7) | 1894 (51.0) |
| >1000 | 264 (37.9) | 140 (40.3) | 872 (23.5) |
| D-dimer (ng/mL) | |||
| <1000 | 136 (19.5) | 60 (17.3) | 1726 (46.4) |
| 1000–2000 | 217 (31.2) | 101 (29.1) | 1076 (29.0) |
| >2000 | 343 (49.3) | 186 (53.6) | 914 (24.6) |
| Interleukin-6 (IU/mL) | |||
| <40 | 121 (17.4) | 26 (7.5) | 438 (11.8) |
| 40–80 | 68 (9.8) | 33 (9.5) | 137 (3.7) |
| >80 | 136 (19.5) | 58 (16.7) | 196 (5.3) |
| NA (missing) | 371 (53.3) | 230 (66.3) | 2945 (79.3) |
AKI, acute kidney injury.