Variable | Total (N = 16,151) | AI (46.1%) | IBE (3.2%) | IBFSU (12.7%) | AOI (38.0%) | p-valuea |
---|---|---|---|---|---|---|
Injury severity score (ISS16+) | 13.4 | 13.4 | 19.4 | 15.6 | 12.1 | < 0.0001 |
Penetrating injury | 48.8 | 57.1 | 46.0 | 38.5 | 42.3 | < 0.0001 |
Injured body regionb | ||||||
Head | 30.5 | 29.2 | 38.7 | 37.6 | 29.0 | < 0.0001 |
Face | 28.0 | 22.7 | 36.2 | 40.3 | 29.5 | < 0.0001 |
Neck | 4.1 | 3.4 | 6.5 | 4.5 | 4.7 | < 0.0001 |
Thorax | 22.1 | 22.6 | 20.5 | 22.3 | 21.6 | NS |
Abdomen | 24.1 | 24.5 | 24.7 | 21.6 | 24.3 | 0.0496 |
Spine | 2.0 | 2.0 | 0.8 | 2.1 | 2.0 | NS |
Upper extremity | 20.4 | 22.5 | 15.1 | 17.1 | 19.5 | < 0.0001 |
Lower extremity | 21.1 | 26.3 | 10.1 | 13.8 | 18.1 | < 0.0001 |
External | 1.8 | 1.4 | 0.8 | 1.7 | 2.5 | < 0.0001 |
Multiple Injuries | 38.1 | 38.3 | 39.3 | 42.9 | 36.1 | < 0.0001 |
Traumatic brain injury | 8.9 | 7.8 | 16.5 | 13.9 | 7.9 | < 0.0001 |
Treated in trauma resuscitation unit | 37.0 | 41.0 | 40.8 | 33.5 | 33.0 | < 0.0001 |
Admission to ICU | 10.2 | 10.7 | 17.4 | 9.2 | 9.3 | < 0.0001 |
Underwent surgery | 33.1 | 33.3 | 32.6 | 33.1 | 32.8 | NS |
Hospital LOS (7 days or more) | 16.3 | 16.7 | 19.9 | 16.3 | 15.6 | < 0.05 |
Hospital LOS (14 days or more) | 5.3 | 5.6 | 6.5 | 4.4 | 5.2 | NS |
Died in hospital | 1.6 | 1.8 | 1.5 | 1.1 | 1.5 | NS |