The Montreal Cognitive Assessment (MoCA) was used to screen cognitive function at 3648 h, 3-months, and 12-months post-stroke. Mild cognitive impairment (MCI) cognitive assessment cognitive impairment cognitive testing longitudinal studies. The study aimed to determine longitudinal trajectories of cognitive function during the first year after stroke. Our findings support using MoCA to assess changes in cognition over time in the study population while calling for future research in other populations. However, accounting for the lack of measurement invariance did not substantially affect classification properties for major neurocognitive disorder and mild cognitive impairment. The items Cube and Sentence Repetition lacked longitudinal measurement invariance only in the "some education" group and the items Clock Shape and Clock Number only in the "no education" group. We applied confirmatory factor analysis of ordinal variables to examine measurement invariance of the Chinese (Cantonese) MoCA (version 7.0) items across four time points, stratified by educational level, where invariant items were identified by sequential model comparisons.įour items exhibited a lack of measurement invariance across the four time points in both education groups (Clock Hand, abstraction, Delayed Recall, and Orientation). A total of 1028 participants were included. We identified people aged 65 years or older at baseline who answered the MoCA items across all time points and had a valid indicator of educational level. We used four waves of data collected between 20 from a cohort study on health and well-being of older adults from twelve public housing estates in Hong Kong. Assessment for the diagnosis of Alzheimer's disease and other dementias. This study aimed to examine the longitudinal measurement invariance of individual MoCA items. longitudinal studies are needed to further improve the MoCA as a screening. The Montreal Cognitive Assessment (MoCA) has started to be used in longitudinal investigations to measure cognition trends but its measurement properties over time are largely unknown.
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