Table 2 Cognitive Functioning Results

 - AVLT Immediate Recall

 - AVLT Delayed Recall

 - AVLT Delayed / Immediate

 - Digit span

46.0 (9–61)

46.0 (15–65)

52.0 (38–65)

43.0 (20–63)

0.029

0.545

0.445

< 0.0005^c

40.0 (9–46)

49.5 (15–58)

55.5 (43–62)

30.00 (20–57)

45.00 (35–61)

46.00 (34–65)

52.00 (38–65)

43.00 (27–60)

49.50 (47–51)

50.00 (43–55)

52.00 (39–62)

48.50 (33–63)

0.121

0.956

0.803

0.017

 GIT-2 spatial test

 Block design

36.0 (23–50)

38.5 (20–53)

< 0.0005^c

< 0.0005^c

26.5 (23–40)

30.0 (20–40)

35.0 (28–40)

37.0 (27–50)

41.5 (40–50)

37.0 (33–53)

0.019

< 0.0005^c

 - Stroop III (Inhibition)

 - Stroop III/II (Interference)

45.0 (20–56)

49.0 (30–66)

0.003^c

0.537

27.0 (20–49)

43.0 (30–60)

48.00 (22–56)

50.00 (31–66)

46.0 (35–53)

47.5 (40–63)

0.078

0.642

 - WCST Total number of errors

 - WCST Perseverative responses

 - WCST Percent Cconceptual level responses

50.5 (27–67)

51.0 (30–81)

49.5 (27–64)

0.988

0.626

0.951

46.0 (27–50)

46.0 (33–52)

48.0 (27–51)

51.50 (37–67)

53.00 (30–81)

52.00 (39–64)

52.0 (39–64)

52.0 (35–73)

51.0 (37–62)

0.134

0.278

0.270

 - TMT B/A

 - Letter fluency

44.0 (27–57)

37.0 (27–67)

0.002^c

0.001^c

45.0 (27–50)

31.0 (28–38)

43.00 (27–57)

39.00 (31–67)

48.5 (40–57)

34.0 (27–56)

0.510

0.143

- Stroop I (Color naming)

- Stroop II (Word reading)

- TMT A (Digit sequencing)

- TMT B (Digit-Letter-Switching)

- Symbol search

- Substitution

40.0 (25–61)

37.0 (20–56)

52.0 (20–67)

45.0 (20–58)

43.0 (20–67)

40.0 (23–57)

0.001^c

< 0.0005^c

0.352

0.003^c

< 0.0005^c

< 0.0005^c

35.0 (25–43)

30.0 (20–40)

50.5 (20–59)

33.5 (20–47)

23.0 (20–50)

30.0 (23–47)

43.00 (35–61)

43.00 (20–56)

56.00 (43–67)

46.00 (20–58)

40.00 (27–67)

40.00 (30–57)

46.5 (33–55)

39.0 (33–56)

47.5 (33–67)

45.0 (33–56)

47.0 (40–60)

43.0 (33–53)

0.077

0.063

0.173

0.111

0.001^c

0.006