Overview
- - Researchers at Utrecht University and Radboudumc created the first national Parkinson registry by linking prescriptions, insurer claims, hospital records and death certificates, with results published in The Lancet Regional Health – Europe.
- - The map shows higher occurrence in Groningen, Friesland and parts of Drenthe, lower rates in Zeeland, and localized elevations near Leiden and Wageningen.
- - No clear area-level clustering appears in bulb-growing or other agricultural regions or in places with poorer air quality, which researchers say does not rule out environmental risks because the map reflects current residence and risk builds over decades.
- - About 63,000 people in the Netherlands live with Parkinson, with an average of roughly 3,724 new diagnoses annually from 2017 to 2022, a number reported as stable while overall prevalence rises with aging and improved survival.
- - Non-smokers are diagnosed more often than smokers, a well-documented inverse association that researchers stress should not be interpreted as a reason to smoke; follow-up work includes a planned in-depth study of 1,500 newly diagnosed patients and a national exposure project by RIVM, Nivel and IRAS running through 2031.