Table 1 Patient characteristics and admission values
Overall cohort (2000–2016) n = 731 | Early period (2000–2008) n = 372 | Late period (2009–2016) n = 359 | Difference between periods P | |
|---|---|---|---|---|
Male | 497 (68%) | 251 (67.5%) | 246 (68.5%) | 0.761 |
Age (mean, SD) | 32.4 (18.1) | 31.8 (17.8) | 33.1 (18.4) | 0.318 |
GCS on admission (missing = 15) | ||||
Mean (SD) | 13.02 (3.57) | 12.46 (3.9) | 13.60 (3.1) | < 0.001 |
GCS ≤ 8 | 106 (14.8%) | 76 (20.7%) | 30 (8.6%) | < 0.001 |
Injury Severity Score | ||||
Median (range) | 27 (4–75) | 33 (4–75) | 24 (4–65) | < 0.001 |
> 15 (definition of polytrauma) | 622 (85.1%) | 338 (90.9%) | 284 (79.1%) | < 0.001 |
Mean (SD) NOM patients | 26.7 (12.35) | 29.3 (12.24) | 24.1 (11.92) | < 0.001 |
Mean (SD) OM patients | 31.5 (13.86) | 35.8 (12.39) | 26.3 (13.84) | < 0.001 |