DRG Epidemiology's coverage of Parkinson's disease (PD) comprises epidemiological estimates of key patient populations across 45 countries worldwide. We report both the incidence and prevalence of PD for each country, as well as annualized case counts projected to the national population.
Most patient populations are forecast over a period of 20 years for the major mature pharmaceutical markets and 10 years for the other countries covered in this report.
DRG Epidemiology’s PD forecast will answer the following questions:
Of all people with PD, how many in each country have been formally diagnosed?
Of all people diagnosed with PD, how many in each country across the countries are drug-treated?
How will demographic trends, such as population aging and improving life expectancy, affect the epidemiology of PD over the forecast period?
All forecast data are available on the DRG Insights Platform in tabular format, with options to download to MS Excel. All populations are accompanied by a comprehensive description of the methods and data sources used, with hyperlinks to external sources. A summary evidence table generated as part of our systematic review of the epidemiological literature is also provided for full transparency into research and methods. In addition, we provide a graphical depiction of the patient flow between or within different disease states for the United States, Europe and Japan. These patient flow diagrams are provided at the regional level, but may be requested for any specific country or forecast year.
DRG Epidemiology provides at least ten years of forecast data for the following PD patient populations:
Total prevalent cases of PD
Total incident cases of PD
Diagnosed prevalent cases of PD
Diagnosed prevalent cases by comorbidity & complication
Diagnosed prevalent cases by drug-treatment
Diagnosed prevalent cases by Hoehn and Yahr staging
Total Prevalence of Parkinson's Disease per 100,000 Among People Aged 30+ in 2019 and 2039
Relative Sizes of the Factors Contributing to the Trend in Prevalent Cases of Parkinson's Disease over the Next Twenty Yearsttttttttt
Analysis of the Prevalent Cases of Parkinson's Disease in 2019 by Diagnosed and Drug-Treated Statustttttttttttttttt
Lifetime DALYs Gained
Total Prevalent Cases
Total Incident Cases
Prodromal PD Cases
Hoehn & Yahr Stage
Freezing of Gait
GBA Mutation in PD
LRRK2 G2019S Mutation in PD
Studies Included in the Analysis of Parkinson's Disease
Studies Excluded from the Analysis of Parkinson's Disease
Risk/Protective Factors for Parkinson's Disease
Abey John, M.P.H.
Abey John, M.P.H., is an epidemiologist at DRG, part of Clarivate. Prior to joining DRG, he worked with Jhpiego (an affiliate of Johns Hopkins Medical University) in implementing family planning health programs in India in collaboration with the government of India. He also has worked at the grassroots level as a health team manager to help the rural population living in the foothills of the Himalayas. He holds a master’s degree in public health.