PD Prevalence
PD is estimated to affect about one in every 790 people globally.
Higher rates of Parkinson’s have been associated with more economically developed countries with a higher average standard of living, however a conclusive reason for this has not yet been identified. [1]
Genetics
We are unable to provide a percentage figure for the heritability of Parkinson's disease, as it is not yet fully understood and is mostly unknown.
Heritability means how much of the differences in a trait (like height) within a group of people can be attributed to differences in genetics.
Something like eye colour has very high heritability (>80%), which means it’s almost completely determined by genetics. Something like a person’s first language has 0% heritability - as that’s entirely to do with their environment.
What it doesn’t mean is how likely something is to be inherited from a parent , as even if a condition had 100% heritability, and so was completely down to genetics, it might be associated with a dominant or recessive gene, or more likely associated with many many genes, which interact in complex ways and which are still being explored & discovered!
Main Symptoms
The signs of Parkinson’s disease are usually mild at first and develop gradually over time. [3]
Impacts
Parkinson's disease has been reported as the fastest growing neurological disorder in the world, with numbers doubling between 1990 and 2015. [4]
The majority of people with Parkinson's disease start to develop symptoms over the age of 50, with around 1 in 20 people first experiencing symptoms before the age of 40 [5]
These are the best resources we've found so far on managing and learning about PD . Please let us know if you have other and we'll add them to the list!
Share this page to help us reach more people, build a better information set, and move research forward!