| Baseline clinical diagnosis (n (%)) | Latest clinical diagnosis (n (%)) | Latest diagnosis on research criteria | ||
| All (n (%)) | Probable/definite diagnoses only (n = 42) (n (%)) | |||
| PD | 46 (70) | 37 (56) | 32 (48.5) | 23 (55) |
| DLB | 1 (1.5) | 7 (10.5) | 6 (9) | 5 (12) |
| Vascular | 5 (7.5) | 9 (14) | 10 (15) | 8 (19) |
| MSA | 4 (6) | 3 (4.5) | 5 (7.5) | 4 (9.5) |
| PSP | 1 (1.5) | 0 | 2 (3) | 2 (4.5) |
| CBD | 1 (1.5) | 1 (1.5) | 1 (1.5) | 0 |
| Other: parkinsonian/DIP | 3 (4.5) | 2 (3) | 3 (5)* | N/A |
| Other: non-parkinsonian | 5 (7.5) | 7 (10.5) | 7 (10.5)* | N/A |
*Patients not meeting any applied research criteria. Parkinsonism defined as two or more of four cardinal motor signs.
CBD, corticobasal degeneration; DIP, drug induced parkinsonism; DLB, dementia with Lewy bodies; MSA, multiple system atrophy; PD, Parkinson’s disease; PSP, progressive supranuclear palsy.