Table 1.

Population Demographics and Clinical Characteristics (n=121)

Characteristic	Mean or Count	SD or %
Years of Age	48	18
Male	84	69%
Race
Black	27	22%
White	89	74%
Asian	4	3%
Native American	1	1%
Latino or Hispanic	19	16%
Hours from Injury to Blood Draw	16	12
TBI Found on CT Scan	38	31%
THINC TBI Rating
Silent	26	21%
Mild	86	71%
Moderate	8	7%
Severe	1	1%

SD, standard deviation; TBI, Traumatic Brain Injury; CT, Computed Tomography; THINC, Traumatic Head Injury Neuroimaging Classification