Table 1.
Baseline characteristics of patients
| Variable | Group A (n = 28) (arterial bleeding) | Group B (n = 120) (no arterial bleeding) | P value |
|---|---|---|---|
| Age (years) | 57.5 (30.5, 74.0) | 49.5 (33.0, 65.0) | 0.426 |
| Sex | 0.342 | ||
| Male | 16 (57.1) | 80 (66.7) | |
| Female | 12 (42.9) | 40 (33.3) | |
| Medications | |||
| Aspirin | 2 (7.1) | 3 (2.5) | 0.239 |
| Clopidogrel | 1 (3.6) | 2 (1.7) | 0.469 |
| Warfarin | 0 (0) | 2 (1.7) | > 0.999 |
| Injury mechanism | 0.191 | ||
| Pedestrian struck by a motor vehicle | 14 (50.0) | 45 (37.5) | |
| Motor vehicle crashes | 0 (0) | 9 (7.5) | |
| Motorcycle crashes | 3 (10.7) | 20 (16.7) | |
| Falls | 9 (32.1) | 44 (36.7) | |
| Others | 2 (7.1) | 2 (1.7) | |
| AIS | |||
| Head and neck | 2 (0, 2.0) | 1 (0, 2.0) | 0.619 |
| Face | 0 (0, 0) | 0 (0, 1.0) | 0.008 |
| Chest | 2 (0, 3.0) | 0 (0, 3.0) | 0.408 |
| Abdomen | 3 (0, 3.0) | 0 (0, 2.0) | 0.001 |
| Extremities | 4 (2.5, 4.0) | 2 (2.0, 3.0) | < 0.001 |
| External | 1 (1.0, 1.0) | 1 (0.5, 1.0) | 0.213 |
| GCS score | 15.0 (12.0, 15.0) | 15.0 (14.0, 15.0) | 0.203 |
| ISS | 28 (18.0, 34.0) | 15.5 (9.0, 25.0) | 0.001 |
| RTS | 6.64 (5.44, 7.84) | 7.84 (7.11, 7.84) | 0.006 |
| TRISS | 88.2 (57.09, 95.94) | 96.75 (89.0, 99.25) | 0.001 |
| APACHE II | 23.0 ± 12.9 | 15.7 ± 8.2 | 0.005 |
| In-hospital mortality | 9 (32.1) | 9 (7.5) | 0.001 |
Values are presented as mean ± SD, median (interquartile range), or n (%)
AIS Abbreviated Injury Scale, ISS Injury Severity Score, RTS Revised Trauma Score, TRISS Trauma and Injury Severity Score, APACHE Acute Physiology and Chronic Health Evaluation, GCS Glasgow Coma Scale