Table 2.

Demographics and mechanisms of injury for 5,912 patients with blunt trauma from 10 trauma centers that had both chest radiograph and chest CT.

Demographics and Mechanism	n	Percentage
Men	3,393	57.4
Age, y
15–19	416	7.0
20–29	1,097	18.6
30–39	931	15.7
40–49	985	16.7
50–59	918	15.5
60–69	643	10.9
70–79	425	7.2
>80	433	7.3
Missing	64	1.1
Mechanisms of injury
Motor vehicle crash	2,680	45.3
Fall from higher than standing	777	13.1
Pedestrian vs motor vehicle*	698	11.8
Motorcyclist, scooter, or ATV rider	697	11.8
Fall from standing	366	6.2
Bicyclist†	277	4.7
Blunt object/battery	173	2.9
Other (including 14 sports injuries)	130	2.2
Unknown (includes found down)	114	1.9

ATV, All-terrain vehicle.

^*Pedestrian: Pedestrian struck by motorized moving vehicle.

^†Bicycle: Fall from bicycle or crash into object on bicycle.