Quality of Life and Mild Cognitive Impairment in Early Parkinson's Disease: Does Subtype Matter?
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Yarnall, Alison J
Duncan, Gordon W
Khoo, Tien K
Breen, David P
Barker, Roger A
Collerton, Daniel
Taylor, John-Paul
Burn, David J
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Abstract
We evaluated the association between mild cognitive impairment (MCI) subtypes and quality of life (QoL) in 219 newly diagnosed Parkinson's disease (PD) patients without dementia. Participants completed neuropsychological tests of attention, executive function, visuospatial function, memory, and language, and reported QoL using the Parkinson's Disease Questionnaire. Impairments were most common in executive function, memory and attention. MCI subtypes were classified according to Movement Disorder Society Task Force criteria. More severe cognitive impairment was associated with poorer quality of life (p = 0.01), but subtype of impairment was not (p > 0.10), suggesting that the nature of cognitive impairment is less significant than its severity.
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Journal of Parkinson's Disease
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4
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3
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© 2014 – IOS Press and the authors. All rights reserved. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Biochemistry and cell biology
Neurosciences