Table 2 Comparison of cognitive testing mean scores between patients and healthy controls at T1 and T2
Variables | T1 Mean (Standard Deviation-SD) | P | T2 Mean (SD) | P | ||
|---|---|---|---|---|---|---|
Patients (n = 20) | Healthy Controls (n = 20) | Patients (n = 16) | Healthy Controls (n = 16) |  | ||
Attention and working memory | ||||||
 Digit span forward | 6.75 (2.53) | 7.30 (1.92) | 0.44 | 6.65 (2.55) | 7.53 (2.03) | 0.02 |
 Digit span backward | 2.45 (1.43) | 3.15 (2.30) | 0.25 | 2.40 (1.69) | 4.26 (2.23) | < 0.01 |
Verbal memory | ||||||
 AVLT immediate recall | 5.32 (1.72) | 4.63 (1.41) | 0.43 | 5.10 (1.88) | 9.15 (3.71) | < 0.01 |
 AVLT delayed recall | 4.95 (2.58) | 4.45 (2.32) | 0.52 | 5.01 (2.92) | 7.35 (2.34) | 0.01 |
 AVLT recognition | 10.35 (1.72) | 10.40 (1.46) | 0.92 | 9.55 (3.21) | 10.40 (1.75) | 0.31 |
Information processing speed | ||||||
 TMT-A | 57.65 (21.65) | 44.95 (16.01) | 0.04 | 54.20 (19.02) | 38.83 (25.53) | 0.04 |
Executive function | ||||||
 TMT-B | 71.05 (26.94) | 57.80 (21.30) | 0.09 | 73.35 (29.40) | 56.72 (33.95) | 0.11 |
Language | ||||||
 COWA | 33.65 (8.89) | 31.55 (6.48) | 0.31 | 15.55 (5.96) | 25.65 (22.18) | 0.36 |