Overall (n = 572) | SI < 0.8 (n = 283) | SI ≥0.8 (n = 289) | P value | |
---|---|---|---|---|
Age (mean ± SD) | 29.2 ± 13.0 | 32.4 ± 12.5 | 26.1 ± 12.9 | 0.001 |
Males | 509 (89.0%) | 263 (92.9%) | 246 (85.1%) | 0.003 |
Blunt trauma | 543 (94.9%) | 264 (93.3%) | 279 (96.5%) | 0.07 for all |
Penetrating injuries | 29 (5.1%) | 19 (6.7%) | 10 (3.5%) | |
Mechanism of injury | ||||
Motor vehicle crash | 365 (77.7%) | 170 (73.6%) | 195 (81.6%) | 0.03 for all |
Fall from height | 105 (22.3%) | 61 (26.4%) | 44 (18.4%) | |
Pulse pressure ED | 46.6 ± 16.6 | 51.9 ± 15.8 | 41.3 ± 15.6 | 0.001 |
Initial lactate | 2.9 (0.6–23.4) | 2.48 (0.8–23.4) | 3.4 (0.6–22.5) | 0.001 |
Second lactate | 3.0 (0.7–80.0) | 2.7 (0.7–39.0) | 3.2 (0.8–80.0) | 0.03 |
Initial hematocrit | 39.6 ± 7.0 | 41.2 ± 6.0 | 38.0 ± 7.6 | 0.001 |
Second hematocrit | 36.6 ± 6. 45 | 37.9 ± 5.7 | 35.3 ± 7.0 | 0.001 |
GCS ED | 12.4 ± 2.6 | 13.9 ± 1.1 | 10.9 ± 4.1 | 0.001 |
Injury Severity Score | 18.7 ± 10.7 | 15.0 ± 8.1 | 22.2 ± 11.7 | 0.001 |
Abdomen AIS | 2.6 ± 0.9 | 2.4 ± 0.7 | 2.7 ± 0.9 | 0.001 |
TRISS | 0.9618 ± 0.0873 | 0.9822 ± 0.0457 | 0.9381 ± 0.1143 | 0.001 |