Table 1.
Demographic and clinical features
| PD | HC | Statistics | p value | |
|---|---|---|---|---|
| Sample size (M/F) | 29/28 | 20/32 | 1.69 | .19a |
| Age (years) | 59.5 ± 1.21 | 60.6 ± 1.22 | 0.61 | .54b |
| Education (years) | 8.4 ± 0.66 | 9.3 ± 0.56 | 1.08 | .28b |
| Duration (years) | 4.6 ± 0.61 | NA | NA | NA |
| UPDRS‐III | 25 ± 1.41 (n = 55)* | NA | NA | NA |
| H‐Y | 1.3 ± 0.35 (n = 50)* | NA | NA | NA |
| MMSE | 28.1 ± 0.32 | 28.4 ± 0.21 | 0.90 | .36b |
| MoCA | 23.7 ± 0.73 (n = 54)* | 25.5 ± 0.62 (n = 32)* | 1.70 | .10b |
| VFT | 16.5 ± 0.62 (n = 51)* | 17.9 ± 0.57 (n = 49)* | 1.67 | .10b |
| DST (forward) | 7.2 ± 0.23 (n = 49)* | 6.9 ± 0.21 (n = 48)* | 0.87 | .39b |
| DST (backward) | 4.4 ± 0.37 (n = 49)* | 4.7 ± 0.23 (n = 48)* | 0.68 | .50b |
Data are mean ± SE. aChi‐square test; btwo‐sample t test.
Abbreviations: DST = Digit Span Test; F = Female; HC = Healthy Control; M = Male; MoCA = Montreal Cognitive Assessment; NA = Not Available; PD = Parkinson's Disease; UPDRS = Unified Parkinson's Disease Rating Scale; VFT = Verbal Fluency Test; H‐Y = Hoehn and Yahr stage.
*
Data in parentheses indicates the number of subjects in each test. Data without an asterisk is computed on all subjects.