Table 2. Effect of Patient Gender and Age on Positive CTH for Mild TBI.

Characteristic	Positive CTH/Total	p-value
Gender
Female	103/1576 (6.5%)	0.001
Male	374/4058 (9.2%)
Age Group
18-20	16/200 (8.0%)	<0.001
20-30	84/1106 (7.6%)
30-40	66/867 (7.6%)
40-50	67/1116 (6.0%)
50-60	81/1094 (7.4%)
60-70	63/609 (10.3%)
70-80	42/314 (13.4%)
80-90	46/258 (17.8%)
90+	12/70 (17.1%)