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Riedel, O.* ; Bitters, D.* ; Amann, U. ; Garbe, E.* ; Langner, I.*

Estimating the prevalence of Parkinson's disease (PD) and proportions of patients with associated dementia and depression among the older adults based on secondary claims data.

Int. J. Geriatr. Psychiatry 31, 938-943 (2016)
Verlagsversion Postprint DOI
Open Access Green
Objectives: While the epidemiology of Parkinson's disease (PD) has been extensively studied, data on the prevalence of PD among the older adults in Germany are scarce, based on small samples, and limited to primary data designs. This study estimated the PD prevalence among the older adults in Germany in 2006 using secondary data. Methods: We included 815,573 health insurance members aged ≥65years from all regions in Germany. PD was identified in case of at least one inpatient or outpatient diagnosis. An outpatient diagnosis had to be confirmed by either a subsequent diagnosis or an antiparkinsonian drug within 12months. PD was also assumed if a first prescription was confirmed by a diagnosis within 12months. Cases were checked for a diagnosis of dementia or depression. Results: The standardized prevalence of PD was 1680 (95% confidence interval (CI): 1644-1716) cases per 100,000 persons. The prevalence increased with age and peaked in the age group of ≥90years (4633 cases; 95% CI: 4227-5068) with higher rates in men (1729; 95% CI: 1684-1776) than in women (1644; 95% CI: 1593-1697). Dementia and depression occurred in 26.6% (95% CI: 25.8-27.5) and 32.6 (95% CI: 31.7-33.5) of PD cases, respectively. Conclusions: The age-related increase of PD prevalence and the age-specific prevalence estimates are in line with other European studies, stressing the public health relevance related to PD. In addition to the minimization of biases that might occur in primary data studies, further strengths of our findings are the large underlying sample size and the coverage of Germany.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Claims Data ; Dementia ; Depression ; Epidemiology ; Parkinson's Disease ; Secondary Data; To-door Survey; Lewy Bodies; Epidemiology; Europe; Spain; Population; Rotterdam; Costs; Care
ISSN (print) / ISBN 0885-6230
e-ISSN 1099-1166
Quellenangaben Band: 31, Heft: 8, Seiten: 938-943 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Malden, Mass.
Begutachtungsstatus Peer reviewed