Table 1 Demographic data and baseline questionnaires (36 participants)

Males, no. (%)

30 (83%)

Age, mean ± SD, y

36.4 ± 8.5

Education, mean ± SD, y

16.7 ± 3.6

PSS mean ± SD, cut off ≥ 14, No. (%)

10.4 ± 5.4, 11 (31)

ISI mean ± SD, cut-off > 7, No. (%)

3.7 ± 3.5, 5 (14)

HADS-A mean ± SD, cut-off ≥ 8, No. (%)

2.9 ± 2.1, 0 (0)

HADS-D mean ± SD, cut-off ≥ 8, No. (%)

1.8 ± 1.6, 0 (0)

PSQI mean ± SD, cut-off > 5, No. (%)

3.8 ± 1.8, 6 (36)

VAS stress (range 0–100)

30.1 ± 19.2

VAS performance (range 0–100)

42.4 ± 15.2

PANAS-P (range 10–50)

31.9 ± 6

PANAS-N (range 10–50)

11.9 ± 1.8

Grooved Pegboard test, dominant hand (s)

58.3 ± 6.8