Table 2 Characteristics of patients
cases in the ER | cases not in the ER | |||||
|---|---|---|---|---|---|---|
ISS ≤ 15 | ISS > 15 | ISS > 15 | ||||
(n = 1378) | (n = 1052) | (n = 326) | (n = 80) | |||
Mean ± SD | Mean ± SD | Mean ± SD | p | Mean ± SD | p | |
N (%) | N (%) | N (%) | N (%) | |||
male | 879 (63.8%) | 658 (62.5%) | 221 (67.8%) | 0.09 | 48 (60%) | 0.20 |
female | 499 (36.2%) | 394 (37.5%) | 105 (32.2%) | 32 (40%) | ||
age at accident (years) | 48.3 ± 21.2 | 45.7 ± 20.4 | 56.6 ± 21.6 | < 0.001 | 68.7 ± 19.1 | < 0.001 |
ISS | 9.7 ± 9.6 | 5.3 ± 4.3 | 23.9 ± 7.9 | < 0.001 | 20.3 ± 4.5 | < 0.001 |
NISS | 12.5 ± 12.3 | 7.1 ± 6.5 | 29.7 ± 11 | < 0.001 | 25.4 ± 7.2 | 0.001 |
AIS1 | 1.3 ± 1.5 | 0.9 ± 1 | 2.7 ± 1.8 | < 0.001 | 3.7 ± 1.3 | < 0.001 |
AIS2 | 0.2 ± 0.6 | 0.1 ± 0.5 | 0.5 ± 0.9 | < 0.001 | 0.5 ± 0.9 | 0.99 |
AIS3 | 0.8 ± 1.3 | 0.4 ± 0.9 | 1.9 ± 1.6 | < 0.001 | 0.6 ± 1.2 | < 0.001 |
AIS4 | 0.4 ± 0.9 | 0.2 ± 0.6 | 0.9 ± 1.3 | < 0.001 | 0.2 ± 0.6 | < 0.001 |
AIS5 | 0.8 ± 1.2 | 0.5 ± 1 | 1.4 ± 1.4 | < 0.001 | 0.7 ± 1.1 | < 0.001 |
AIS6 | 0.6 ± 0.6 | 0.6 ± 0.5 | 0.4 ± 0.7 | < 0.001 | 0.3 ± 0.4 | 0.03 |
1st GCS | 13.3 ± 3.4 | 14 ± 2.5 | 11.1 ± 4.7 | < 0.001 | 13.8 ± 2.1 | < 0.001 |
lowest SaO2 (%) | 94.1 ± 10.1 | 94.5 ± 10.2 | 92.9 ± 9.6 | 0.06 | 93.3 ± 5.3 | 0.85 |
lowest systolic BP (mmHg) | 133 ± 28 | 134.6 ± 27 | 128.2 ± 30.5 | 0.004 | 136 ± 21.7 | 0.20 |
RISC (%) | 7.7 ± 16.8 | 3.1 ± 5.9 | 22.4 ± 28.3 | < 0.001 | 22.8 ± 20 | 0.90 |
hospital mortality | 96 (7%) | 17 (1.6%) | 79 (24.2%) | < 0.001 | 7 (8.8%) | 0.002 |