A member of PLM posted this data. We I inquired about posting it in another board (other than PLM) he state that the data was public domain, so here it is.

To date, they have compiled some interesting facts about the PD community and its members:

• We are now 3,000 members strong! We are still targeting 10,000 members, so please spread the word to others you know who have been diagnosed with PD.
• Your average current age: 62.5 years old
• Your average age of onset: 56.4 years old - about a decade earlier than the general Parkinson's population
• Onset was at or before 40 for 7% of you - comparable to the general Parkinson's population
• 60% of you are male - men generally have a higher risk for Parkinson's
• 2.5% of you have the LRRK2 mutation G2019S, which confers a substantially increased risk of Parkinson's.
• The vast majority of you don't have any known genetic factors associated with Parkinson's. This is why genetic research is so crucial for this disease. You can help by continuing to fill out surveys so that we can better understand PD.
• Over 60% of you have taken the Parkinson's background survey. Thanks to those who have taken this survey. If you haven't, please do so -- it is essential to our research efforts.
• Over 30% of you have taken five or more surveys - way to go!