. Author manuscript; available in PMC: 2019 Aug 1.

Published in final edited form as: J Int Neuropsychol Soc. 2018 Jun 29;24(7):662–672. doi: 10.1017/S1355617718000279

Table 1.

Summary of demographic and clinical characteristics of participants.

	Control (n = 16)	mTBI (n = 17)	Group Comparison
Age in years, M (SD)	33.1 (5.6)	31.7 (6.8)	t(31) = 0.7, P = 0.5
Males, no. (%)	14 (87.5)	17 (100.0)	χ²(1) = 2.3, P = 0.1
Education in years, M (SD)	15.6 (2.4)	14.7 (1.6)	t(31) = 1.2, P = 0.2
Blast exposure or TBI to scan interval in months, M (SD)	93.3 (34.6)	81.0 (40.4)	t(31) = 0.9, P = 0.4
PCL-M score, M (SD)	37.6 (12.6)	40.2 (13.2)	t(31) = −0.6, P = 0.6
Individuals with LOC, no. (%)		7 (41.2)
Pre-deployment TBIs, M (SD)	0.9 (2.1)	0.7 (2.0)	t(31) = 0.2, P = 0.8

Note: For the control group, the scan interval indicates the time from blast exposure to scan, whereas for the mTBI group, the scan interval indicates the time from blast-related mTBI to scan. mTBI=mild traumatic brain injury; PCL-M=PTSD Checklist-Military version.