I know that others have worked out ways of dividing different forms, stages, etc from one another. I'm sure it can be overdone but thought that we might be able to do better.

1- Ldopa response
This one can do more than just responds/does not. There is
a gradient but it would be subjective. And things could get interesting out at the extremes (anaphalaxis, for example).

2- Age (Of onset? Of diagnosis?) Senior onset? Young onset? Puberty? Childhood? Fetal?

3- Dominant symptoms - Rigidity? Tremor? Neither?

4- "Minor" symptons. John's finger movement data, for example. Or my own "balance on one leg" drill.

5- How about stressor exposure in the period just before diagnosis? Anyone have the flu in the two years just before dx?

6- Then there is stress response today. How does epinephrine affect you?

Just thinking....

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