Patient characteristics
| OR group (n=45) | ED group (n=43) | P value | |
| Males, n (%) | 31 (69) | 29 (67) | 0.88 |
| Age (years), mean±SD | 45±19 | 44±20 | 0.18 |
| Blunt trauma, n (%) | 16 (36) | 32 (74) | <0.01 |
| Injury Severity Score, mean±SD | 13±10 | 30±15 | <0.01 |
| Revised Trauma Score | 7±1 | 6±2 | <0.01 |
| TRISS probability of survival, % | 92±19 | 67±37 | <0.01 |
| Systolic blood pressure at admission, mm Hg | 119±25 | 92±46 | <0.01 |
| Heart rate at admission, beats per minute | 92±24 | 100±39 | 0.04 |
OR group: trauma patients who underwent emergency operation in the operating room; ED group: trauma patients who underwent emergency operation in the emergency department.
ED, emergency department; OR, operating room; TRISS, Trauma and Injury Severity Score.