Table 2 Patients classified by BD (classes I to IV): demographics, injury mechanism and severities as well as outcome parameters
| Â | Class I | Class II | Class III | Class IV |
|---|---|---|---|---|
BD ≤ 2.0 (none to minimal) | BD >2.0 to 6.0 (mild) | BD > 6.0 to 10.0 (moderate) | BD > 10.0 (severe) | |
Demographics | Â | Â | Â | Â |
n (total, %) | 4369 (42.8) | 3658 (35.9) | 1404 (13.8) | 770 (7.5) |
Male (n, %) | 3211 (73.9) | 2636 (72.6) | 982 (70.5) | 523 (68.2) |
Age (years; mean ± SD) | 50.9 (21.4) | 46.4 (21) | 45.6 (20.6) | 46.2 (20.3) |
Blunt trauma (n, %) | 4121 (97.3) | 3467 (96.8) | 1332 (96.2) | 703 (93.1) |
Injury severity | Â | Â | Â | Â |
ISS (points; mean ± SD) | 25.8 (11.9) | 30.2 (13.6) | 35.2 (15.9) | 41.6 (17.0) |
AIS Thorax ≥3 points (n; %) | 1476 (33.8) | 1642 (44.9) | 742 (52.8) | 486 (63.1) |
AIS Abdomen ≥3 points (n; %) | 236 (5.4) | 395 (10.8) | 270 (19.2) | 19.9 (25.8) |
AIS Pelvis/Extremities ≥3 points (n; %) | 650 (14.9) | 892 (24.4) | 469 (33.4) | 305 (39.6) |
Outcome | Â | Â | Â | Â |
Mortality (n; %) | 696 (15.9) | 805 (22) | 502 (35.8) | 473 (61.4) |
Hospital LOS (days; mean ± SD) | 18.1 (17.8) | 21.7 (25) | 20.8 (24.8) | 16 (29.1) |
ICU (days; mean ± SD) | 10.8 (12.2) | 13.5 (13.8) | 14 (15.9) | 11.1 (16.8) |
Ventilator days (days; mean ± SD) | 7.3 (10.4) | 9.7 (11.8) | 10.5 (13.1) | 9.1 (14.4) |
MOF (n; %) | 694 (18) | 876 (26.8) | 389 (32.6) | 256 (44.4) |
Sepsis (n, %) | 296 (7.5) | 428 (12.5) | 194 (15.8) | 83 (14.1) |