TABLE 2:

Initial CT findings in the entire group, in the surgical group, and in patients with worsening on second CT^*

Finding on 1st CT	Total (292 patients)	Surgically Treated (19 patients)	Worsening on 2nd CT (13 patients)
tSAH	68 (23.3)	4 (21.1)	2 (15.4)
EDH	19 (6.5)	6 (31.6)	1 (7.7)
SDH	53 (18.2)	7 (36.8)	4 (30.8)
pneumocephalus	23 (7.9)	0 (0)	3 (23.1)
fracture	77 (26.4)	8 (42.1)	7 (53.8)
contusion	72 (24.7)	6 (31.6)	10 (76.9)
negative	85 (29.1)	0 (0)	0 (0)
postop	3 (1.0)	3 (15.8)	NA
no CT performed	22 (7.5)	0 (0)	NA

^*Values represent numbers of patients (%). Abbreviations: NA = not available; tSAH = traumatic subarachnoid hemorrhage.