ArticleJournal of Korean medical science2026
Validity of the T-MoCA for Screening MCI and Dementia and Its Equivalence to the K-MoCA-22.
Article in Journal of Korean medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- National Age- and Education-Specific Normative Data for K-MoCA Total Score, Domain Index Scores, and K-MoCA-22.Dementia and neurocognitive disorders · 2026Article
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8 authors.
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Abstract
backgroundWith rapid population aging, the prevalence of cognitive impairment and dementia continues to rise, underscoring the need for accessible and reliable screening tools. The Telephone-Montreal Cognitive Assessment (T-MoCA) enables remote cognitive evaluation but has been rarely validated in non-Western populations or in patients with dementia. This study aimed to evaluate the diagnostic validity of the T-MoCA and its score equivalence to the corresponding face-to-face version, the Korean version of the MoCA (K-MoCA)-22, across the full cognitive spectrum in older Korean adults.
methodsThe participants included 52 cognitively normal (CN) adults, 51 with mild cognitive impairment (MCI), and 50 with dementia. All participants completed the T-MoCA, the K-MoCA-30, and Korean-Mini Mental State Examination, 2nd Edition (K-MMSE-2). The K-MoCA-22 scores were derived from the K-MoCA-30 by excluding visuomotor items. The T-MoCA and K-MoCA-30 were administered approximately one month apart.
resultsThe T-MoCA showed moderate to strong correlations with the K-MoCA-30 and moderate correlations with the K-MMSE-2. T-MoCA scores declined progressively from CN to MCI to dementia, with significant between-group differences consistent with those observed for the K-MoCA-30. No significant differences in the areas under the curve were found between the T-MoCA and K-MoCA-30, or between the T-MoCA and K-MMSE-2, indicating comparable discriminability. Lin's concordance correlation coefficients showed good overall agreement, and Bradley-Blackwood tests revealed no significant differences in means or variances between the T-MoCA and K-MoCA-22. Bland-Altman plots showed no systematic bias, with differences symmetrically distributed around zero.
conclusionThese findings support the T-MoCA as a valid, reliable, and clinically equivalent alternative to in-person MoCA formats for older Korean adults, encompassing normal cognition, MCI and dementia. As a practical and accessible tool for remote cognitive screening, the T-MoCA is expected to facilitate early detection and longitudinal monitoring of cognitive decline, particularly in community and telehealth settings.
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