Table 2 Injury patterns and clinical outcomes of patients who visited the emergency department with two-wheeled vehicle-related injury
Variable | Â | Bicycle | Motorcycle | Total | p-value | |||
|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | |||
Number of patients in ED | Â | 37,410 | Â | 16,932 | Â | 54,342 | Â | Â |
Region of injury | Head and neck | 6,316 | 16.9% | 4,729 | 27.9% | 11,045 | 20.3% | Â |
Face | 2,492 | 6.7% | 1,826 | 10.8% | 4,318 | 7.9% | Â | |
Chest | 1,189 | 3.2% | 1,146 | 6.8% | 2,335 | 4.3% | Â | |
Abdomen and pelvic contents | 272 | 0.7% | 307 | 1.8% | 579 | 1.1% | Â | |
External | 21,144 | 56.5% | 10,257 | 60.6% | 31,401 | 57.8% | Â | |
Extremities and pelvic girdle | 54 | 0.1% | 124 | 0.7% | 178 | 0.3% | Â | |
Upper extremities | 12,127 | 32.4% | 5,527 | 32.6% | 17,654 | 32.5% | Â | |
Lower extremities | 11,161 | 29.8% | 9,627 | 56.9% | 20,788 | 38.3% | Â | |
Spine | 449 | 1.2% | 747 | 4.4% | 1,196 | 2.2% | Â | |
Unspecified | 15 | 0.0% | 25 | 0.1% | 40 | 0.1% | Â | |
Number of fractures | Total fractures | 11,629 | Â | 7,792 | Â | 19,421 | Â | Â |
Fracture site | Skull | 418 | 3.6% | 474 | 6.1% | 892 | 4.6% | Â |
Facial | 1,909 | 16.4% | 1,631 | 20.9% | 3,540 | 18.2% | Â | |
Spine | 96 | 0.8% | 207 | 2.7% | 303 | 1.6% | Â | |
Rib, sternum | 120 | 1.0% | 176 | 2.3% | 296 | 1.5% | Â | |
Scapula | 90 | 0.8% | 75 | 1.0% | 165 | 0.8% | Â | |
Clavicle | 939 | 8.1% | 379 | 4.9% | 1,318 | 6.8% | Â | |
Humerus | 660 | 5.7% | 166 | 2.1% | 826 | 4.3% | Â | |
Forearm | 5,953 | 51.2% | 2,886 | 37.0% | 8,839 | 45.5% | Â | |
Hand | 736 | 6.3% | 416 | 5.3% | 1,152 | 5.9% | Â | |
Pelvic ring | 44 | 0.4% | 91 | 1.2% | 135 | 0.7% | Â | |
Acetabulum | 4 | 0.0% | 30 | 0.4% | 34 | 0.2% | Â | |
Femur | 238 | 2.0% | 477 | 6.1% | 715 | 3.7% | Â | |
Patella | 74 | 0.6% | 97 | 1.2% | 171 | 0.9% | Â | |
Tibia/fibula | 85 | 0.7% | 237 | 3.0% | 322 | 1.7% | Â | |
Foot | 263 | 2.3% | 450 | 5.8% | 713 | 3.7% | Â | |
ISS (mean ± SD) |  | 5.0 ± 6.1 |  | 9.0 ± 10.4 |  | 6.2 ± 7.9 |  | 0.000 |
ISS ≥ 16 |  | 2,172 | 5.8% | 3,078 | 18% | 5,250 | 9.70% | 0.000 |
ED disposition | Discharge | 33,765 | 90.3% | 12,156 | 71.8% | 45,921 | 84.5% | Â |
Transfer | 258 | 0.7% | 574 | 3.4% | 832 | 1.5% | Â | |
ICU admission | 3,040 | 8.1% | 3,388 | 20.0% | 6,428 | 11.8% | Â | |
GW admission | 306 | 0.8% | 708 | 4.2% | 1,014 | 1.9% | Â | |
Death | 9 | 0.0% | 53 | 0.3% | 62 | 0.1% | Â | |
Others | 27 | 0.1% | 50 | 0.3% | 77 | 0.1% | Â | |