Table 1:

Patient and Injury Characteristics

Variable	Value (n = 1204)
Male sex	800 (66.4)
Mean age ± SD (y)	45 ± 22
Mechanism of injury
MVC or other mode of transportation	675 (56.1)
Fall	338 (28.1)
Pedestrian	75 (6.2)
Assault	31 (2.6)
Other	85 (7.0)
No. of injured vessels per patient*
1	870 (72.2)
2	285 (23.7)
3	31 (2.6)
4	18 (1.5)
Maximum Denver grade per patient
1	448 (37.2)
2	339 (28.2)
3	154 (12.8)
4	247 (20.5)
5	16 (1.3)

Note.— Unless otherwise noted, values are numbers of patients, with percentages in parentheses. MVC = motor vehicle collision, SD = standard deviation.

^*Out of 4 (bilateral internal carotid arteries and bilateral vertebral arteries)