Characteristics of major torso trauma patients stratified by hospital level
| Variable | Hospital level | P value | |
| Non-trauma centre (n=10 227) | Trauma centre (n=9782) | ||
| Age, years, median (IQR) | 47 (31–61) | 43 (27–57) | <0.001* |
| Chronic condition, no | <0.001* | ||
| 0 | 7692 (75.2%) | 7823 (79.97%) | |
| 1–2 | 916 (21.9%) | 763 (17.27%) | |
| ≥3 | 164 (2.9%) | 126 (2.76%) | |
| Sex (male, ratio) | 7330 (71.7%) | 7042 (72.0%) | 0.619 |
| Injury type | |||
| Head | 5664 (55.4%) | 4825 (49.3%) | <0.001* |
| Cardiac | 82 (0.8%) | 141 (1.4%) | <0.001* |
| Pneumohemothorax | 4178 (40.9%) | 3799 (38.8%) | 0.004* |
| Lung | 1308 (12.8%) | 1589 (16.2%) | <0.001* |
| GI tract | 656 (6.4%) | 608 (6.2%) | 0.563 |
| Spleen | 1203 (11.8%) | 1200 (12.3%) | 0.273 |
| Liver | 1339 (13.1%) | 1600 (16.4%) | <0.001* |
| Kidney | 443 (4.3%) | 533 (5.4%) | <0.001* |
| Pelvic organ | 170 (1.7%) | 211 (2.2%) | 0.010* |
| Pelvic fracture | 1332 (13.0%) | 1563 (16.0%) | <0.001* |
| Spine | 2288 (22.4%) | 2396 (24.5%) | <0.001* |
| Femoral fracture | 2239 (21.9%) | 2059 (21.0%) | 0.146 |
| Complication | |||
| Dialysis | 238 (2.3%) | 280 (2.9%) | 0.017* |
| ACS | 21 (0.2%) | 16 (0.2%) | 0.492 |
| Pneumonia | 1045 (10.2%) | 825 (8.4%) | <0.001* |
| Sepsis | 84 (0.8%) | 58 (0.6%) | 0.054 |
| Stroke | 110 (1.1%) | 95 (1.0%) | 0.463 |
| GI bleeding | 289 (2.8%) | 169 (1.7%) | <0.001* |
| In-hospital mortality | 1564 (15.3%) | 1240 (12.7%) | <0.001* |
*p<0.05.
ACS, acute coronary syndrome; GI, gastrointestinal.