Table 4.
Demographic and clinical characteristics of patients aged ≥50 years at onset of Parkinson's disease.
| Characteristic | Patients |
|---|---|
| Total sample, n | 578 |
| Men, n (%) | 247 (42.7) |
| Women, n (%) | 331 (57.3) |
| Age at onset of PD, years, mean ± SD (range) | 61.1 ± 7.1 (50–87) |
| Disease duration, years, mean ± SD (range) | 10.3 ± 3.9 (5–27) |
| Patients with motor fluctuations, n (%) | 403 (69.7) |
| Duration between PD onset and development of motor fluctuations, years, mean ± SD (range) | 7.1 ± 3.2 (1–20) |
| Patients with levodopa-induced dyskinesia, n (%) | 354 (61.1) |
| Duration between PD onset and development of levodopa-induced dyskinesia, years, mean ± SD (range) | 7.3 ± 3.2 (1–19) |
| Patients with motor fluctuations 5 years after PD onset, n (%) | 141 (24.4) |
| Duration between PD onset and development of motor fluctuations, years, mean ± SD (range) | 3.9 ± 1.2 (1–5) |
| Patients with levodopa-induced dyskinesia 5 years after PD onset, n (%) | 115 (19.9) |
| Duration between PD onset and development of levodopa-induced dyskinesia, years, mean ± SD (range) | 4.0 ± 1.1 (1–5) |
| MMSE score (range) | 25.8 ± 3.2 (10–30) |
| MoCA score (range) | 21.8 ± 5.7 (3–30) |
PD, Parkinson's disease; SD, standard deviation; MMSE, Mini-Mental State Examination; MoCA, Montreal Cognitive Assessment.