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A 15-year population-based cohort study of the incidence of Parkinson's Disease and dementia with Lewy bodies in an elderly French cohort
  1. Florian PEREZ1,
  2. Catherine HELMER2,
  3. Jean-François DARTIGUES2,
  4. Sophie AURIACOMBE3,
  5. François TISON1,*
  1. 1 Parkinson’s disease and related disorders unit, Department of Clinical Neurosciences, UH Bordeaux, France;
  2. 2 INSERM U 897, Public Health and Development Institute (ISPED), Bordeaux University, France;
  3. 3 Memory disorders and AD clinic (CMRR), Department of Clinical Neurosciences, Bordeaux, France
  1. Correspondence to: F Tison, HÙpital du Haut-LevÍque, Service de Neurologie, HÙpital du Haut-LevÍque, Avencue de Magelan, 33600 Pessac cedex, FRANCE; francois.tison{at}


Objective: To provide global and age-related incidence over 65 years of Parkinsonian syndromes (PS), Parkinson’s disease (PD) and suspected dementia with Lewy bodies (DLB).

Methods: A 15-year prospective population-based elderly cohort study in South-Western France (PAQUID).

Results: Incidences found were: 557.7/100,000 person-years for PS, 263 per 100,000 person-years for PD and 112 per 100,000 person-years for suspected DLB. The incidence of all PS, PD and suspected DLB was greater in men. The age-specific incidence of PD decreased over 85, while that of DLB continuously increased even in the oldest old.

Conclusions: We provide new data on PD and suspected DLB incidence in a large population-based French cohort of subjects aged over 65 and followed up for 15 years. PD incidence decreased in the oldest old contrary to that of suspected DLB cases and Alzheimer’s disease.

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