| Characteristic | Overall n = 26 421 | Patient subgroup, no. (%)* | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Penetrating truncal injury n = 1032 | Shock in ED n = 1230 | Blunt multisystem injury n = 9942 | Older (≥ 65 yr) n = 8715 | Isolated traumatic brain injury n = 9167 | ||||||||
| Male | 18 751 | (71.4) | 937 | (91.7) | 848 | (68.9) | 8 852 | (89.0) | 5 259 (60.3) | 6 401 (69.8) | ||
| Age | ||||||||||||
| Mean, yr (SD) | 52 (22) | 32 (14) | 49 (21) | 47 (20) | 78 (8) | 62 (21) | ||||||
| ≥ 65 | 8 715 | (33.2) | 38 | (3.7) | 322 | (26.2) | 2 262 | (22.7) | 8 715 | (100) | 4 923 | (53.7) |
| Injury mechanism | ||||||||||||
| MVC, occupant | 9 886 | (37.7) | 0 | (0) | 616 | (50.0) | 6 008 | (60.4) | 1 827 | (20.9) | 1 085 | (11.8) |
| MVC, pedestrian | 585 | (2.2) | 0 | (0) | 18 | (1.5) | 198 | (1.9) | 116 | (1.3) | 190 | (2.0) |
| MVC, motorcyclist | 1 323 | (5.0) | 0 | (0) | 50 | (4.1) | 561 | (5.6) | 129 | (1.5) | 215 | (2.3) |
| Fall | 10 874 | (41.4) | 0 | (0) | 298 | (24.2) | 2 489 | (25.0) | 6 259 | (71.8) | 6 320 | (68.9) |
| Other blunt trauma | 1 854 | (7.1) | 0 | (0) | 60 | (4.9) | 474 | (4.8) | 203 | (2.3) | 962 | (10.5) |
| Firearm injury | 518 | (1.9) | 362 | (35.1) | 64 | (5.2) | 0 | (0) | 20 | (0.2) | 78 | (0.8) |
| Cut, pierce | 761 | (2.9) | 670 | (64.9) | 92 | (7.5) | 0 | (0) | 37 | (0.4) | 37 | (0.4) |
| Other | 620 | (2.4) | 0 | (0) | 32 | (2.6) | 212 | (2.1) | 124 | (1.4) | 280 | (3.0) |
| Injury severity score | ||||||||||||
| Median (IQR) | 24 | (16–27) | 19 | (17–26) | 29 | (21–41) | 29 | (22–38) | 25 | (16–25) | 25 | (16–25) |
| ≥ 25 | 12 608 | (47.7) | 398 | (38.6) | 849 | (69.0) | 7 019 | (70.6) | 4 504 | (51.7) | 4 618 | (50.4) |
| Motor component of GCS | ||||||||||||
| 5–6 | 21 666 | (82.0) | 860 | (83.3) | 770 | (62.6) | 7 665 | (77.1) | 7 366 | (84.5) | 7 265 | (79.2) |
| 3–4 | 2 306 | (8.7) | 53 | (5.1) | 144 | (11.7) | 961 | (9.7) | 784 | (8.9) | 1 027 | (11.2) |
| 1–2 | 2 449 | (9.3) | 119 | (11.5) | 316 | (25.7) | 1 316 | (13.2) | 565 (6.4) | 875 (9.5) | ||
| Shock in ED (SBP ≤ 90 mm Hg) | 1 230 (4.7) | 131 (12.7) | 1 230 (100) | 725 (7.3) | 322 (3.7) | 156 (1.7) | ||||||
| Severe injury (AIS ≥ 3) | ||||||||||||
| Head | 15 198 (57.5) | 58 (5.6) | 684 (55.6) | 5 473 (55.0) | 5 454 (62.6) | 9 167 (100) | ||||||
| Chest | 10 088 | (38.2) | 769 | (74.5) | 547 | (44.5) | 6 794 | (68.3) | 2 841 | (32.6) | 0 | (0) |
| Abdomen | 2 646 | (10.0) | 454 | (43.9) | 206 | (16.7) | 1 834 | (18.4) | 650 | (7.5) | 0 | (0) |
| Lower extremity | 5 510 | (20.8) | 67 | (6.5) | 305 | (24.8) | 4 073 | (40.9) | 1 531 | (17.6) | 0 | (0) |
| Transfers from outside institutions | 12 406 | (46.9) | 245 | (23.7) | 444 | (36.1) | 4 726 | (47.5) | 4 188 | (48.1) | 4 435 | (48.4) |
| Mortality | ||||||||||||
| In-hospital | 3 174 | (12.0) | 116 | (11.2) | 410 | (33.3) | 1 303 | (13.1) | 1 754 | (20.1) | 1 475 | (16.1) |
| Died in ED | 368 | (1.4) | 45 | (4.4) | 106 | (8.6) | 150 | (1.5) | 141 | (1.6) | 118 | (1.3) |
Note: AIS = Abbreviated Injury Scale, ED = emergency department, GCS = Glasgow Coma Scale, IQR = interquartile range, MVC = motor vehicle collision, SBP = systolic blood pressure, SD = standard deviation. *Unless otherwise indicated.