Mann-Whitney U test results of ROI-based group comparison

ROIs	FA in TBI (n = 9)	FA in Control (n = 12)	P
sCC	0.69 ± 0.11	0.77 ± 0.06	.06
gCC	0.73 ± 0.04	0.77 ± 0.04	<.05^*
bCC	0.69 ± 0.12	0.75 ± 0.05	.22
ALIC	0.53 ± 0.03	0.58 ± 0.04	<.05^*
PLIC	0.58 ± 0.02	0.63 ± 0.04	<.01^*
SLF	0.49 ± 0.05	0.50 ± 0.05	.42
IFO	0.45 ± 0.06	0.45 ± 0.05	.75

Note:—ROI indicates regions of interest; FA, fractional anisotropy; TBI, traumatic brain injury; sCC, splenium of corpus callosum; gCC, genu of corpus callosum; bCC, body of corpus callosum; ALIC, anterior limb of interior capsule; PLIC, posterior limb of interior capsule; SLF, superior longitudinal fasciculus; IFO, inferior fronto-occipital fasciculus.
* Statistically significant at P < 0.05.