Vanessa Fleury1, Pauline Brindel2, Nicolas Nicastro3, Pierre R Burkhard4. 1. Department of Neurology, Geneva University Hospital, 1211 Geneva 14, Switzerland; Faculty of Medicine, University of Geneva, CMU, 1211 Geneva 4, Switzerland. Electronic address: Vanessa.FleuryNissen@hcuge.ch. 2. Department of Health and Community Medicine, Geneva University Hospital, 1211 Geneva 14, Switzerland. 3. Division of Neurorehabilitation, Geneva University Hospital, 1206 Geneva, Switzerland. 4. Department of Neurology, Geneva University Hospital, 1211 Geneva 14, Switzerland; Faculty of Medicine, University of Geneva, CMU, 1211 Geneva 4, Switzerland.
Abstract
OBJECTIVES: A large descriptive cross-sectional population-based prevalence study as well as a retrospective incidence study were undertaken to ascertain the frequency of Parkinson's Disease (PD) and other types of degenerative and non-degenerative parkinsonism in the Canton of Geneva, Switzerland. METHODS: An extensive case-finding approach including records from public hospitals, private neurologists and nursing homes was utilized. All patients with a diagnosis of parkinsonism established between 2003 and 2012 were included. Diagnosis of parkinsonism was ascertained by a movement disorders specialist, based on published and validated consensus diagnostic criteria. RESULTS: A total of 1235 living patients with parkinsonism were identified, from which 80% presented with a degenerative form and 20% with a non-degenerative form of parkinsonism. Among the former, PD was the most frequent diagnosis (81%, age-adjusted prevalence: 183/105 inhabitants, age-adjusted average annual incidence: 20/105/year) followed by dementia with Lewy bodies (9%), progressive supranuclear palsy (3.9%), multisystem atrophy (1.9%) and corticobasal syndrome (1.4%). Among non-degenerative parkinsonism, drug-induced parkinsonism was the most frequent diagnosis (43.4%), followed by vascular parkinsonism (37%), normal pressure hydrocephalus (5.1%) and parkinsonism in the context of a psychiatric disorder or functional parkinsonism (3.8%). Crude, age-, sex-specific and age-adjusted prevalence and incidence of all types of parkinsonism are detailed for each diagnosis. CONCLUSION: This is the first Swiss population-based epidemiological study of PD and parkinsonism. It provides an extensive overview of the prevalence and incidence of degenerative and non-degenerative forms of parkinsonism. These data may assist clinicians with their clinical workup.
OBJECTIVES: A large descriptive cross-sectional population-based prevalence study as well as a retrospective incidence study were undertaken to ascertain the frequency of Parkinson's Disease (PD) and other types of degenerative and non-degenerative parkinsonism in the Canton of Geneva, Switzerland. METHODS: An extensive case-finding approach including records from public hospitals, private neurologists and nursing homes was utilized. All patients with a diagnosis of parkinsonism established between 2003 and 2012 were included. Diagnosis of parkinsonism was ascertained by a movement disorders specialist, based on published and validated consensus diagnostic criteria. RESULTS: A total of 1235 living patients with parkinsonism were identified, from which 80% presented with a degenerative form and 20% with a non-degenerative form of parkinsonism. Among the former, PD was the most frequent diagnosis (81%, age-adjusted prevalence: 183/105 inhabitants, age-adjusted average annual incidence: 20/105/year) followed by dementia with Lewy bodies (9%), progressive supranuclear palsy (3.9%), multisystem atrophy (1.9%) and corticobasal syndrome (1.4%). Among non-degenerative parkinsonism, drug-induced parkinsonism was the most frequent diagnosis (43.4%), followed by vascular parkinsonism (37%), normal pressure hydrocephalus (5.1%) and parkinsonism in the context of a psychiatric disorder or functional parkinsonism (3.8%). Crude, age-, sex-specific and age-adjusted prevalence and incidence of all types of parkinsonism are detailed for each diagnosis. CONCLUSION: This is the first Swiss population-based epidemiological study of PD and parkinsonism. It provides an extensive overview of the prevalence and incidence of degenerative and non-degenerative forms of parkinsonism. These data may assist clinicians with their clinical workup.
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