Demographic variables for patients and controls
| CONTROLS | PD | Test stat (df) | P value | |
| Age (SD) | 69.12 (10.55) | 67.12 (8.83) | t(29.1)=0.52 | 0.604 |
| Weight (kg) (SD) | 73.38 (11.52) | 75.87 (11.28) | t(30.2)=−0.79 | 0.438 |
| Year since diagnosis (SD) | NA | 6.69 (4.85) | NA | NA |
| HAM-D (SD) | 3.33 (4.15) | 7.40 (5.97)* | t(37.5)=−2.57 | 0.014 |
| HAM-A (SD) | 3 (3.42) | 6.48 (5.65)* | t(39.5)=−2.35 | 0.024 |
| MoCA (SD) | 28.60 (1.93) | 27.12 (2.99) | t(38.7)=1.78 | 0.083 |
| Gender (M/F/NS) | 10/7/1 | 9/18/0 | χ2(1) | 0.177 |
| Handedness (R/L/NS) | 11/3/4 | 20/2/3 | χ2(2) | 0.574 |
SDs are in brackets. Significant differences from the control group are indicated by asterisks; *p<0.05, **p<0.01, ***p<0.001.
MoCA, Montreal Cognitive Assessment; PD, Parkinson’s disease.