The most disabling symptom | The main source of distress | ||
Fatigue | 244 (50.4%) | Fatigue | 229 (47.3%) |
Bradykinesia | 235 (48.6%) | Tremor | 209 (43.2%) |
Tremor | 234 (48.3%) | Bradykinesia | 199 (41.1%) |
Postural instability | 143 (29.5%) | Pain | 156 (32.2%) |
Pain | 120 (24.8%) | Postural instability | 126 (26.0%) |
Mood disturbances | 108 (22.3%) | Mood disturbances | 116 (24.0%) |
Daytime sleepiness | 87 (18.0%) | Memory disturbances | 92 (19.0%) |
Memory disturbances | 85 (17.6%) | Daytime sleepiness | 80 (16.5%) |
Rigidity | 76 (15.7%) | Urinary problems | 71 (14.7%) |
Urinary problems | 46 (9.5%) | Rigidity | 67 (13.8%) |
Social difficulties | 34 (7.0%) | Social difficulties | 51 (10.5%) |
Sexual dysfunction | 9 (1.9%) | Sexual dysfunction | 15 (3.1%) |
Olfactory disturbances | 7 (1.4%) | Olfactory disturbances | 10 (2.1%) |
Psychosis | 6 (1.2%) | Psychosis | 9 (1.9%) |