TABLE 1.
Demographic characteristics of the two cranial electrotherapy stimulation (CES) groups (Active, Sham), and statistical comparison testing for baseline group differences across three demographic characteristics.
| Demographic variable | CES group | Testing for baseline differences | |
| Active (M, SD) | Sham (M, SD) | Wilcoxon rank-sum test outcome | |
| Age (years) | 20.95 (2.94) | 23.36 (5.82) | W = 216, p = 0.31 |
| Education (years) | 13.95 (1.43) | 14.6 (3.04) | W = 264, p = 0.98 |
| STAI-T | 33.71 (10.75) | 29.52 (7.28) | W = 328.5, p = 0.15 |
| Sex | 6 female, 15 male | 11 female, 14 male | – |
| Handedness | 20 right, 1 left | 20 right, 5 left | – |
| Military or civilian | 13 military, 8 civilian | 15 military, 10 civilian | – |
| Race | 7 white, 1 black, 10 Hispanic, 3 Asian, 0 other | 16 white, 1 black, 3 Hispanic, 2 Asian, 3 other | – |