Influence of Different Cut-Off Values on the Diagnosis of Mild Cognitive Impairment in Parkinson's Disease. (23rd May 2011)

• Record Type: Journal Article
• Authors: Liepelt-Scarfone, Inga; Graeber, Susanne; Feseker, Anne; Baysal, Gülsüm; Godau, Jana; Gaenslen, Alexandra; Maetzler, Walter; Berg, Daniela
• Other Names: Aarsland Dag Academic Editor.
• Is Part Of: Parkinson's disease. Volume 2011(2011)
• Publication Date: 2011-05-23
• Subjects: Parkinson's disease -- Periodicals; Parkinson's disease -- Treatment -- Periodicals; 616.833005
• DOI: 10.4061/2011/540843
• Languages: English
• ISSNs: 2090-8083

Abstract

Abstract : Comparable to Alzheimer's disease, mild cognitive impairment in Parkinson's disease (PD-MCI) is associated with an increased risk for dementia. However different definitions of PD-MCI may have varying predictive accuracy for dementia. In a cohort of 101 nondemented Parkinson patients who underwent neuropsychological testing, the frequency of PD-MCI subjects and PD-MCI subtypes (i.e., amnestic/nonamnestic) was determined by use of varying healthy population-based cut-off values. We also investigated the association between defined PD-MCI groups and ADL scales. Varying cut-off values for the definition of PD-MCI were found to affect frequency of PD-MCI subjects (9.9%–92.1%) and, maybe more important, lead to a "shift" of proportion of detected PD-MCI subtypes especially within the amnestic single-domain subtype. Models using a strict cut-off value were significantly associated with lower ADL scores. Thus, the use of defined cut-off values for the definition of PD-MCI is highly relevant for comparison purposes. Strict cut-off values may have a higher predictive value for dementia.