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Table 1: Patient baseline characteristics and MR Imaging abnormalities in regions of interest in patients with TBI
Mild TBI (n = 24) Moderate TBI (n = 9 Severe TBI (n = 6)
Patient baseline characteristics 
    Age (yr, mean ± SD) 33 ± 10 34 ± 15 36 ± 22
    M:W (No.) 16:8 6:3 5:1
    Months between trauma and MRI scan (median, Q1–Q3) 2.8 (0.4–26.2) 0.5 (0.3–1.2) 1.4 (0.4–2.4)
MRI abnormalities in ROIs 
FLAIR hyperintensities (No., %) 
    Genu 1 (4) 0 1 (17)
    Body 0 0 1 (17)
    Splenium 1 (4) 1 (11) 2 (34)^*
EPI diffusion/GE hypointensities (No., %) 
    Genu 0 0 0
    Body 0 0 1 (17)
    Splenium 1 (4) 0 1 (17)
Note:—M indicates man; W, woman; Q1, first quartile; Q3, third quartile; MRI, MR imaging; ROIs, regions of interest; TBI, traumatic brain injury; FLAIR, fluid-attenuated inversion recovery; EPI, echo-planar imaging.
* P < .05.

	Mild TBI (n = 24)	Moderate TBI (n = 9	Severe TBI (n = 6)
Patient baseline characteristics
Age (yr, mean ± SD)	33 ± 10	34 ± 15	36 ± 22
M:W (No.)	16:8	6:3	5:1
Months between trauma and MRI scan (median, Q1–Q3)	2.8 (0.4–26.2)	0.5 (0.3–1.2)	1.4 (0.4–2.4)
MRI abnormalities in ROIs
FLAIR hyperintensities (No., %)
Genu	1 (4)	0	1 (17)
Body	0	0	1 (17)
Splenium	1 (4)	1 (11)	2 (34)^*
EPI diffusion/GE hypointensities (No., %)
Genu	0	0	0
Body	0	0	1 (17)
Splenium	1 (4)	0	1 (17)