Canadian CT head rule and New Orleans Criteria in mild traumatic brain injury: comparison at a tertiary referral hospital in Japan

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Table 2 Baseline characteristics of patients

Parameters	Important CT findings present (n = 49)	Important CT findings absent (n = 93)	P value
Age^a	60.8 (± 20.6)	44.3 (± 20.2)	<.0001*
Sex			0.0022*
Male	25 (51)	71(76.3)
Female	24 (49)	22 (23.4)
Mean of accident			0.0030*
Traffic accident	20 (40.8)	48 (51.6)
Fall	28 (51.1)	31(33.3)
Others	1 (20.4)	14 (15.1)
Neurosurgery	4 (8.2)	0 (0)	0.0052*

Unless otherwise indicated, data are numbers of patients, and numbers in parentheses are percentages
* Statistically significant value
^aMean (SD) in year (s)