Table 2 Characteristics of the propensity score-matched patients
| Â | Control group n = 31 | FC group n = 31 | Matched standardised difference | p value |
|---|---|---|---|---|
Age (years) | 55 (36–72) | 53 (32–74) | − 0.006 | 0.978 |
Gender, male | 25 (80.6) | 19 (61.3) | − 0.435 | 0.093 |
Blunt trauma | 29 (93.5%) | 29 (93.5%) | < 0.001 | 1.000 |
Mechanism of the injury | ||||
 Traffic accident (in the car) | 12 (38.7%) | 12 (38.7%) | < 0.001 | 1.000 |
 Traffic accident (pedestrian) | 11 (35.5%) | 11 (35.5%) | < 0.001 | |
 Fall | 6 19.4%) | 6 19.4%) | < 0.001 | |
 Invert | 0 (0.0%) | 0 (0.0%) | < 0.001 | |
 Stab wound/cutting | 2 (6.5%) | 2 (6.5%) | < 0.001 | |
 Others | 0 (0.0%) | 0 (0.0%) | < 0.001 | |
Injury to the admission to the ED | ||||
 0–30 (min) | 6 (19.3%) | 6 (19.3%) | < 0.001 | 0.963 |
 30–60 (min) | 18 (58.0%) | 18 (58.0%) | < 0.001 | |
 60–90 (min) | 4 (12.9%) | 3 (9.67%) | − 0.102 | |
 90– (min) | 3 (9.67%) | 4 (12.9%) | 0.102 | |
Revised trauma score | 5.03 (4.09–6.90) | 5.68 (4.45–6.38) | 0.086 | 0.750 |
Probability of survival | 0.684 (0.276–0.878) | 0.724 (0.275–0.886) | 0.043 | 0.894 |
Vital signs on the admission to ED | ||||
 Heart rate (per min) | 94 (68–120) | 105 (80–120) | 0.119 | 0.578 |
 Glasgow coma scale | 6 (3–13) | 7 (4–14) | 0.271 | 0.228 |
 Systolic Blood Pressure (mmHg) | 112 (91–150) | 100 (70–140) | − 0.135 | 0.383 |
 Respiratory rate (per min) | 19 (16–24) | 24 (16–30) | 0.459 | 0.105 |
Injury severity score | 30 (21–36) | 34 (25–41) | 0.353 | 0.182 |
 AIS head and neck | 4 (0–5) | 4 (0–5) | 0.016 | 0.895 |
 AIS face | 0 (0–0) | 0 (0–1) | − 0.403 | 0.414 |
 AIS chest | 3 (0–4) | 3 (0–4) | − 0.164 | 0.699 |
 AIS abdomen | 0 (0–2) | 0 (0–3) | 0.660 | 0.087 |
 AIS extremity | 1 (0–3) | 2 (0–3) | − 0.295 | 0.668 |
 AIS external | 1 (0–1) | 1 (0–1) | 0.419 | 0.678 |
Blood gas analysis | ||||
 pH | 7.33 (7.24−7.37) | 7.25 (7.15−7.35) | − 0.283 | 0.095 |
 Base deficit (mmol/L) | 3.7 (2.1− 6.7 ) | 6.3 (2.4–12.5) | − 0.343 | 0.130 |
 Lactate (mmol/L) | 4.1 (2.9–5.5) | 4.9 (3.0–7.9) | 0.219 | 0.260 |
Laboratory data | ||||
 Platelet (× 103/μL) | 208 (163–240) | 193 (114–235) | − 0.158 | 0.559 |
 PT-INR | 1.08 (1.03–1.27) | 1.20 (1.10–1.40) | − 0.158 | 0.078 |
 Fibrinogen (mg/dL) | 169 (124–200) | 164 (138–219) | 0.113 | 0.647 |
 FDP (μg/mL) | 120.0 (66.6–267.0) | 93.5 (43.0–188.0) | 0.082 | 0.391 |
 D-dimer (μg/mL) | 67.5 (46.5–207.7) | 56.9 (20.4–125.0) | − 0.019 | 0.240 |