Prevalence of Parkinsonian signs in individuals aged 75 years and older
| UPDRS Item | Score=1 (%) | Score≥2 (%) |
| Speech | 6 | 1 |
| Facial expression | 10 | 1 |
| Rest tremor | 1 | 1 |
| Rigidity neck | 4 | 2 |
| Rigidity arms | 7 | 1 |
| Rigidity legs | 5 | 2 |
| Posture | 20 | 7 |
| Axial bradykinesia | 17 | 3 |
UPDRS, United Parkinson’s Disease Rating Scale.
Adapted from Louis et al. 13