Baseline characteristics at diagnosis
| Total (%) | |
| No of patients | 171 |
| Age at onset (years) (mean±SD (range)) | 62.2±10.6 (38–89) |
| Sex (men (n (%)) | 93 (54) |
| Tremor type at onset (n (%)) | 46 (26.9) |
| PIGD type at onset (n (%)) | 62 (36.3) |
| Symmetry at onset (n (%)) | 15 (8.8) |
| Postural instability (H&Y ≥3) (n (%)) | 6 (3.5) |
| MMSE (mean±SD (range)) | 26.8±3 (20–30) |
H&Y, Hoehn and Yahr; MMSE, Mini-Mental State Examination; PIGD, postural instability gait disorder.