TABLE 1.

Baseline Characteristics^a

	Overall
Subjects, N (%)	317 (100)
Age, y, mean ± SD	71.5 ± 15.4
Sex, male, %	57
Mechanism of injury, %
Fall (ground level or from height)	78
Motor vehicle accident	18
Other	4
Injury severity
Initial GCS score, median (IQR)	15 (14-15)
Severe TBI (GCS score ≤8), %	6
Marshall score, median (IQR)	2 (1-2)

^aGCS, Glasgow Coma Scale; IQR, interquartile range; TBI, traumatic brain injury.