Table 2.
Pre-op (n = 21)
|
Post-op (n = 21)
|
HC (n = 21)
|
Stat. val. (F) | df | p-value | ||
---|---|---|---|---|---|---|---|
Mean ± SD | Mean ± SD | Mean ± SD | |||||
MMSE | – | – | 29.0 ± 0.8 | – | – | ||
Mattis (of 144) | 141.1 ± 2.3 | 139.9 ± 2.8 | 140.9 ± 2.0 | 1.43 | 2. 60 | .25 | |
Stroop | Interference | 3.8 ± 10.2 | 2.1 ± 8.6 | 6.8 ± 9.2 | 1.34 | 2. 60 | .27 |
TMT | A (seconds) | 42.5 ± 13.9 | 50.0 ± 20.6 | 42.7 ± 15.1 | 1.35 | 2. 60 | .27 |
B (seconds) | 95.5 ± 44.7 | 109.7 ± 49.3 | 91.5 ± 42.7 | <1 | 2. 60 | .40 | |
B-A (seconds) | 52.9 ± 37.0 | 59.7 ± 39.9 | 48.8 ± 34.9 | <1 | 2. 60 | .64 | |
Verbal fluency | Categorical | 34.8 ± 9.4 | 29.0 ± 12.3 | 32.0 ± 9.0 | 1.61 | 2. 60 | .21 |
Phonemic | 24.7 ± 7.2 | 21.0 ± 7.4 | 20.8 ± 6.1 | 2.12 | 2. 60 | .13 | |
Action verbs | 16.7 ± 5.8 | 14.9 ± 5.3 | 17.8 ± 6.5 | 1.31 | 2. 60 | .28 | |
MCST | Categories | 5.5 ± 0.8 | 5.6 ± 0.7 | 5.9 ± 0.2 | 1.90 | 2. 60 | .16 |
Errors | 4.4 ± 4.5 | 2.9 ± 3.9 | 2.3 ± 1.9 | 1.80 | 2. 60 | .17 | |
Perseverations | 1.0 ± 1.6 | 1.6 ± 3.0 | 0.4 ± 0.6 | 1.70 | 2. 60 | .19 | |
MADRS | 5.7 ± 8.1 | 5.6 ± 4.9 | 1.6 ± 2.06 | 3.48 | 2.60 | .03* |
Statistical values (stat. val.), degrees of freedom (df), and p-values between preoperative (pre-op), post-operative (post-op), and HC (healthy control) groups are reported (single-factor analysis of variance).
PD = Parkinson’s disease; MMSE = Mini Mental State Examination; TMT = Trail Making Test; MCST = modified version of the Wisconsin Card Sorting Test; MADRS = Montgomery-Asberg Depression Rating Scale.
Significant if p-value <.05.