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Participation numbers in Level B.
| PD patients N |
Healthy controls N | Total N | |||
|---|---|---|---|---|---|
| Visit 1 | Visit 2 | Visit 3 | |||
| Level B neuropsychology | 192 | 29 | 4 | 252 | 477 |
| Level B gait | 137 | 99 | 63 | 87 | 386 |
| Level B vision | 75 | 37 | 7 | 95 | 214 |
| Level B PSP assessment | 8 | 0 | 0 | 0 | 8 |
| Stool | 280 | 162 | 60 | 394 | 896 |
| Skin biopsy | 58 | 26 | 11 | 69 | 164 |
