Table 1.

Injury characteristics of the sample and imaging findings.

	Yes	No	Unknown
	n, %	n, %	n, %
Loss of consciousness-witnessed/suspected	45, 37.2%	58, 47.9%	18, 14.9%
Post-traumatic seizure	0, 0%	105, 86.6%	16, 13.2%
Post-traumatic amnesia	41, 33.9%	71, 58.7%	9, 7.4%
Focal neurological deficit	11, 9.1%	108, 89.3%	2, 1.7%
Vomited 2 times or more	2, 1.7%	109, 90.1%	10, 8.3%
Headache	50, 41.3%	62, 51.2%	9, 7.4%
Alcohol intoxication at time of injury	39, 32.2%	75, 62.0%	7, 5.8%
Neurosurgery (craniotomy)	2, 1.7%	119, 98.3%	–
Other surgery	0, 0%	121, 100%	–
Acute traumatic lesion on head computed tomography	22, 18.2%	78, 64.5%	29, 24.0%

No patient had an isolated skull fracture.