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Dementia in idiopathic Parkinson's disease: prevalence and relationship with symptoms and signs of Parkinsonism

Published online by Cambridge University Press:  09 July 2009

K. P. Ebmeier*
Affiliation:
Department of Mental Health, University of Aberdeen
S. A. Calder
Affiliation:
Department of Mental Health, University of Aberdeen
J. R. Crawford
Affiliation:
Department of Mental Health, University of Aberdeen
L. Stewart
Affiliation:
Department of Mental Health, University of Aberdeen
R. H. B. Cochrane
Affiliation:
Department of Mental Health, University of Aberdeen
J. A. O. Besson
Affiliation:
Department of Mental Health, University of Aberdeen
*
1Address for correspondence: Dr K. P. Ebmeier, MRC Brain Metabolism Unit, Royal Edinburgh Hospital, Morningside Park, Edinburgh EH10 5HF.

Synopsis

A whole population cohort of 157 patients with idiopathic Parkinsonism, most of whom had previously been clinically examined by Mutch (1986 a), were assessed to determine prevalence figures for dementia and examine the relationship between dementia, cognitive impairment and Parkinsonian signs. Dementia according to DSM-III-R criteria was diagnosed in 23·3% of all patients (95% confidence interval: 17·1 to 32·4%). Dementia and cognitive impairment were associated with overall measures of Parkinsonian impairment and rigidity, but not tremor, even after controlling for age, sex and education.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1991

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