Table 3 Demographic, injury, and resuscitation characteristics of derivation and validation cohorts
From: Development and validation of a prehospital prediction model for acute traumatic coagulopathy
|  | Derivation cohort (n = 1963) | Validation cohort (n = 285) | ||
|---|---|---|---|---|
Age | 44.6 | (18.5) | 48.2 | (19.0) |
Male sex | 1422 | (72.6) | 204 | (71.6) |
Non-white race | 349 | (18.1) | 40 | (14.0) |
Hispanic | 199 | (10.3) | 18 | (6.4) |
Minutes from injury to ED arrival | 51 | (38–70) | 56 | (40–86) |
Blunt injury | 1727 | (88.0) | 285 | (100) |
Mechanism of injury | ||||
 Motor vehicle crash | 642 | (32.7) | 104 | (36.5) |
 Motorcycle crash | 185 | (9.4) | 50 | (17.6) |
 Bicycle crash | 83 | (4.2) | 10 | (3.5) |
 Pedestrian struck | 120 | (6.1) | 51 | (17.9) |
 Fall | 435 | (22.2) | 44 | (15.4) |
 Other | 498 | (25.4) | 26 | (9.1) |
First recorded prehospital vital signs | ||||
 Systolic blood pressure (mmHg) | 131 | (28) | 116 | (37) |
 Heart rate | 94 | (23) | 99 | (26) |
 Respiratory rate | 20 | (5.3) | 19 | (7.6) |
First recorded non-intubated GCS | 15 | (13–15) | 14 | (8–15) |
Pre-hospital interventions | ||||
 Cardiopulmonary resuscitation | 41 | (2.1) | 9 | (3.2) |
 Chest decompression | 29 | (1.5) | 8 | (2.8) |
 Intubation | 317 | (16.2) | 145 | (50.9) |
Initial ED temperature | 36.3 | (1.07) | 35.9 | (1.23) |
Injury severity score | 17.3 | (12.0) | 32.3 | (15.1) |
Admission INR | 1.19 | (0.74) | 1.25 | (0.26) |
Acute traumatic coagulopathy | 115 | (5.9) | 26 | (9.1) |
Death before discharge | 175 | (8.9) | 37 | (13.0) |