United Kingdom (UK) regions over the last two decades.1-5 Their results on
prevalence range from 105 to 178 persons with Parkinson’s per 100,000
population when adjusted for age.This suggested that the number of people with
the condition in the UK could range from 51,000 to 120,000. These wide-ranging
findings made it very difficult to estimate how many people with Parkinson’s there
were in the UK. That encouraged us to evaluate Parkinson’s prevalence in the
United Kingdom using the world's largest computerised database of anonymised
longitudinal medical records – General Practice Research Database (GPRD).