Journal
MOVEMENT DISORDERS
Volume 23, Issue 7, Pages 1043-1046Publisher
WILEY-LISS
DOI: 10.1002/mds.22017
Keywords
cognition; Parkinson's disease; screening
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Cognitive impairment is common in Parkinson's disease (PD) and can occur early in the disease course. No effective screening test exists for detection of early or mild cognitive impairment in PD. We examined the Montreal Cognitive Assessment (MoCA) as a screening tool for cognitive dysfunction in PD. The test-retest intraclass correlation coefficient was 0.179 and the interrater intraclass correlation coefficient was 0.81. The correlation coefficient between the MoCA and a neuropsychologic battery was 0.72. The MoCA is reliable and valid in the PD population and warrants further study as a screening tool for cognitive dysfunction. (c) 2008 Movement Disorder Society.
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