Table 1.
Imaging Participant Characteristics.
| Characteristic | Combat CTL (n = 40) | Concussive blast TBI (n = 46) | p-Value |
|---|---|---|---|
| Age in years | |||
| Mean (stdev) | 35 ± 8 | 31 ± 7 | 0.01 |
| Education in years | |||
| Mean (stdev) | 16 ± 2.6 | 13 ± 1.5 | 0.0001 |
| Gender - no (%) | |||
| Male | 36 (90%) | 45 (98%) | 0.17 |
| Female | 4 (10%) | 1 (2%) | |
| Race/ethnicitya - no (%) | |||
| White | 28 (70%) | 34 (74%) | 0.81a |
| African American | 8 (20%) | 5 (11%) | |
| Hispanic/Latino | 4 (10%) | 5 (11%) | |
| Asian | 0 | 2 (4%) | |
| Branch of service - no (%) | |||
| US Army | 26 (65%) | 41 (89%) | 0.009b |
| US Air Force | 8 (20%) | 0 | |
| US Marine Corps | 3 (7.5%) | 5 (10%) | |
| US Navy | 3 (7.5%) | 0 | |
| Military rank - no (%) | |||
| Enlisted | 39 (88%) | 44 (96%) | 0.26 |
| Officer | 5 (12%) | 2 (4%) | |
Age, education: Mann-Whitney U Test, all other characteristics: Fisher's exact test
a
White vs. Other
b
Army vs. Other