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Distribution, including percentages, of the Parkinson's disease patients by duration (D) and Hoehn & Yahr stage (HY) of the disease.
| D/HY | Number of patients | Percentage |
|---|---|---|
| D less than 5 years | 20 | 27 |
| D between 5 and 9 years | 19 | 26 |
| D 10 years or more | 35 | 47 |
| HY1 | 16 | 22 |
| HY2 | 31 | 42 |
| HY3 | 11 | 14 |
| HY4 | 12 | 16 |
| HY5 | 4 | 6 |
