Table 1 Overview of patient characteristics, mechanisms of injury, management and first laboratory values determined at admission in the propensity score matched groups comparing two 1 trauma centres (LUKS: Cantonal Hospital Lucerne, USZ: University Hospital Zurich)
USZ (n = 172) | LUKS (n = 172) | Standardized difference | |
|---|---|---|---|
Age (years) | 53.6 (21.8) | 51.1 (19.7) | 0.09 |
Sex (male) | 119 (69%) | 121 (70%) | 0.03 |
Heart rate (bpm) on admission | 90 (23) (n = 169) | 91 (21) (n = 167) | 0.04 |
Systolic blood pressure (mmHg) on admission | 131 (27) (n = 171) | 132 (31) (n = 168) | 0.04 |
Penetrating trauma | 8 (5%) | 6 (4%) (n = 169) | 0.06 |
GCS on scene | 13 [6;15] (n = 167) | 13 [6;15] (n = 169) | 0.09 |
ISS | 27.8 (14.5) | 27.9 (11.5) | 0.01 |
Time (min.) prehospital | 65 [55;84] | 70 [55;90] (n = 143) | 0.01# |
Time (min.) ED | 145 [100;255] | 170 [105;309] (n = 143) | 0.11# |
Prehospital intubation | 48 (28%) | 56 (33%) | 0.10 |
Vasopressor use (in the ED) | 90 (52%) | 93 (54%) | 0.03 |
First laboratory values determined after admission to the ED | |||
Haemoglobin (g/dl) | 12.1 (2.1) (n = 166) | 12.1 (2.3) (n = 169) | 0.00 |
Platelet count (G/l) | 186 [152;225] (n = 167) | 197 [164;227] (n = 164) | 0.10# |
Base Excess (mmol/l) | −3.5 (4.9) (n = 165) | −2.8 (5.5) (n = 165) | 0.12 |
Lactate (mmol/l) | 1.7 [1.1;2.6] (n = 166) | 1.7 [1.0;3.0] (n = 148) | 0.13# |
Quick’s value (%) | 71 (22) (n = 167) | 73 (19) (n = 166) | 0.09 |
Fibrinogen (g/l) | 2.3 (1.0) (n = 160) | 2.3 (0.8) (n = 162) | 0.07 |