TABLE 1.

Mean, median and standard deviation of demographics, head motion, psychological measures (PCL5, NSI, and CES), and CNS-VS neurocognitive measures for each of the groups.

Variable		Controls	PTSD	PCS + PTSD
DEMOGRAPHICS AND HEAD MOTION
Age, years	Mean	32.6	32.2	33.7
	Median	31	32	33
	SD	6.7	7.6	6.8
Education, years	Mean	15.1	14.5	14.1
	Median	16	14	14
	SD	1.9	2.2	1.9
Race	White	18 (66.7%)	11 (64.7%)	26 (66.7%)
	Black	2 (7.4%)	3 (17.6%)	9 (22.0%)
	Hispanic	3 (11.1%)	3 (17.6%)	2 (4.9%)
	Asian	2 (7.4%)	0	1 (2.4%)
	Other	0	0	1 (2.4%)
Head motion (mean frame-wise displacement)	Mean	0.098	0.121	0.111
	Median	0.072	0.076	0.069
	SD	0.082	0.106	0.104
Medication		2 (7.4%)	4 (23.5%)	13 (31.7%)*
Lifetime mTBIs	Mean (Range)	0.3 (2)	1.1 (6)	2.5 (15)*
PSYCHOLOGICAL MEASURES
Traumatic stressa	Mean	23.5	56.6	70.9
	Median	21.5	48.5	70.5
	SD	4.2	17.8	15.2
Post-concussive symptomsa	Mean	6.6	25.9	43.4
	Median	5	17.5	41.5
	SD	4.8	19.2	16.1
Combat exposurea	Mean	7.2	16.7	28.6
	Median	2.5	15	29
	SD	9.8	11.2	8.6
NEUROCOGNITIVE MEASURES
Neurocognitive composite indext,z	Mean	101.2	94.3	81.7
	Median	100.7	94.6	82.2
	SD	12.9	12.5	20.7
Reaction time	Mean	97.4	95.3	84
	Median	101	92	91
	SD	23	11.9	32.8
Complex attentiont	Mean	94.2	78.1	70
	Median	99.5	92	80
	SD	23.3	30.9	31.3
Cognitive flexibilityt,z	Mean	103.6	97.1	80.5
	Median	103	93	86
	SD	16.3	15.2	26.7
Processing speedt	Mean	104.8	100.1	89.9
	Median	104	98	92
	SD	20.9	11	20.1
Executive functioningt,z	Mean	106	101	84.1
	Median	104.5	104	90
	SD	13.3	13.2	24.8
Verbal memory	Mean	99.6	92.1	83.6
	Median	106.5	103	83
	SD	12.5	9.5	13.9

^adenotes p < 0.05, all three groups; ^tdenotes p < 0.05, Controls vs. PCS + PTSD, ^zdenotes p < 0.05, PTSD vs. PCS + PTSD. Traumatic Stress = PCL5; Post-concussive Symptoms = NSI; Combat Exposure = CES.