Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11861/7139
Title: Stability of montreal cognitive assessment in individuals with mild cognitive impairment: potential influence of practice effect
Authors: Lei, Lauren K. S. 
Dr. LAM Yin-Hung, Bess 
Lai, Daniel W. L. 
Bai, Xue 
Li, Jessica 
Zou, Zhi 
Chan, Chetwyn C. H. 
Issue Date: 2022
Source: Journal of Alzhelmer's Disease, 2022, vol. 87(3), pp. 1401-1412.
Journal: Journal of Alzhelmer's Disease 
Abstract: Background: The Montreal Cognitive Assessment (MoCA) is a standard test for screening and monitoring cognitive functions. Objective: This study explored the two-year changes in MoCA scores in older adults. Methods: Fifty-seven participants with mild cognitive impairment (MCI) and 87 participants with normal cognition completed the baseline and two-year follow-up assessments. Apart from MoCA, tests on visuospatial judgment, memory, and motor-related executive function were administered. Results: The results identified three MCI subgroups based on the differential changes in MoCA scores. They were the consistently low, consistently high, and low-to-high between-time performances. These heterogeneous test performances are on contrary to the significant deteriorations in executive function and finger dexterity across all subgroups. Repeated exposure to MoCA tests during the follow-up period was found to be a plausible indicator of the MCI subgroup categorization. Conclusion: Findings raise concerns over adopting brief clinical instrument for repeated testing, such as MoCA, for monitoring MCI conditions among older adults.
Type: Peer Reviewed Journal Article
URI: http://hdl.handle.net/20.500.11861/7139
ISSN: 1387-2877
DOI: 10.3233/JAD-220003
Appears in Collections:Counselling and Psychology - Publication

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