Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Classification of the cases according to the modified Hoehn and Yahr scale
| Stage | n | Time from onset of PD, in years (mean±SD) |
|---|---|---|
| 0 | 0 | 0 |
| 1 | 15 | 1.2±0.50 |
| 1.5 | 5 | 2.7±1.11 |
| 2 | 22 | 3.1±1.73 |
| 2.5 | 16 | 3.6±2.16 |
| 3 | 16 | 5.2±3.24 |
| 4 | 1 | 8 |
Abbreviations: n=number of cases; SD=standard deviation
