|  | Derivation, n(%) | Validation, n(%) |
---|---|---|---|
Treatments and diagnostic tools | ( N = 13,463) | ( N = 13,691) | |
 | O2 | 7,928 (59.0) | 8,097 (59.1) |
 | Cervical collar | 6,932 (51.5) | 7,092 (51.8) |
Prehospital treatment | Backboard | 6,257 (46.5) | 6,469 (47.3) |
 | Shock pants | 9 (0.1) | 12 (0.1) |
 | Intravenous fluid | 547 (4.1) | 496 (3.6) |
 | Positive | 1,128 (9.0) | 1,211 (9.5) |
FAST | Negative | 8,884 (71.1) | 8,974 (65.5) |
 | Not used | 2,475 (19.8) | 2,554 (20.0) |
 | Head | 8,901 (66.1) | 9,130 (66.7) |
 | Neck | 4,506 (33.5) | 4,570 (33.4) |
 | Spine | 1,591 (11.8) | 1,629 (11.9) |
CT | Chest | 6,563 (48.7) | 6,691 (48.9) |
 | Abdomen | 6,463 (48.0) | 6,564 (46.9) |
 | Pelvis | 5,099 (37.9) | 5,192 (37.9) |
 | Others | 504 (3.7) | 471 (3.4) |
 | Head | 129 (1.0) | 107 (0.8) |
 | Neck | 52 (0.4) | 62 (0.5) |
 | Spine | 21 (0.2) | 29 (0.2) |
Angiography | Chest | 109 (0.8) | 121 (0.9) |
 | Abdomen | 377 (2.8) | 389 (2.8) |
 | Pelvis | 424 (3.1) | 428 (3.1) |
 | Others | 52 (0.4) | 44 (0.3) |
Blood transfusion (+) | Â | 2,166 (17.2) | 2,216 (17.2) |
 | Craniotomy | 470 (3.5) | 463 (3.4) |
 | Craterization | 174 (1.3) | 151 (1.1) |
 | Thoracotomy | 263 (2.0) | 275 (4.2) |
Operation | Celiotomy | 545 (4.0) | 541 (4.0) |
 | Bone Fixation | 2,170 (16.1) | 2,117 (15.5) |
 | Angiostomy | 88 (0.7) | 77 (0.6) |
 | TAE | 383 (2.8) | 404 (3.0) |
 | Endoscopic surgery | 7 (0.1) | 14 (0.1) |
 | Anastomosis | 48 (0.4) | 45 (0.3) |
 | Others | 438 (3.3) | 487 (3.6) |
 | Death in ED or OR | 655 (5.3) | 672 (5.4) |
Disposition at ED | ICU | 8,464 (68.9) | 8,701 (69.7) |
 | Ward | 2,904 (23.7) | 2,826 (22.6) |
 | Others | 254 (2.1) | 280 (2.2) |
 | Death | 1,600 (14.8) | 1,670 (15.2) |
Disposition at discharge | Hospital transfer | 4,350 (40.2) | 4,375 (40.0) |
 | Home | 4,811 (44.4) | 4,864 (44.4) |
 | Others | 63 (0.6) | 55 (0.5) |