Table 2.
Study population demographic and clinical characteristics. Data are presented as number (%), mean (SD) or median (IQR) values.
| All | Centre 1 (Ustí nad Labem) | Centre 2 (Plzen) | p Value 1 | |
|---|---|---|---|---|
| n (%) | 264 (100) | 155 (59) | 109 (41) | N/A |
| Age (SD) | 42.1 (15.4) | 41.2 (15.2) | 43.4 (15.5) | 0.23 |
| Male (%) | 196 (74) | 112 (72) | 84 (77) | 0.37 |
| Injury Severity Score (SD) | 13.6 (11.8) | 11.2 (10.6) | 16.9 (12.7) | <0.001 |
| Injury Severity Score ≥ 16 (%) | 86 (32.6) | 40 (25.8) | 46 (42.2) | 0.005 |
| Blunt trauma (%) | 260 (98) | 153 (99) | 107 (98) | 0.72 |
| Prehospital time [min] (SD) | 68 (20.7) | 63 (16.7) | 76.3 (23.9) | <0.001 |
| Time to sample [min] (SD) | 76 (21.7) | 70.5 (18.8) | 85.1 (23.2) | 0.02 |
| Prehospital SI (IQR) | 0.70 [0.59–0.86] | 0.69 [0.59–0.83] | 0.78 [0.61–0.93] | 0.01 |
| Admission SI (IQR) | 0.64 [0.54–0.76] | 0.65 [0.54–0.78] | 0.63 [0.54–0.76] | 0.48 |
| Fibrinogen, g.L−1 (IQR) | 2.69 [2.29–3.12] | 2.70 [2.31–3.25] | 2.61 [2.27–2.98] | 0.13 |
| Fibrinogen <2.3 g.L−1 (%) | 69 (26.1) | 38 (24.5) | 31 (28.4) | 0.47 |
| Fibrinogen <2.0 g.L−1 (%) | 32 (12.1) | 16 (10.3) | 16 (10.3) | 0.29 |
| Fibrinogen <1.5 g.L−1 (%) | 11 (4.2) | 7 (4.5) | 4 (3.7) | 0.73 |
| Prehospital SI ≥ 1 (%) * | 36 (13.7) | 12 (7.8) | 24 (22) | <0.001 |
| Admission SI ≥ 1 (%) * | 17 (6.5) | 8 (5.2) | 9 (8.3) | 0.30 |
* N/A, not applicable; SI, Shock Index; 1 difference between centres.