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논문 기본 정보

자료유형
학술저널
저자정보
강성훈 (고려대학교) 박문호 (고려대학교)
저널정보
대한치매학회 Dementia and Neurocognitive Disorders(대한치매학회지) Dementia and Neurocognitive Disorders(대한치매학회지) 제20권 제4호
발행연도
2021.10
수록면
41 - 51 (11page)
DOI
10.12779/dnd.2021.20.4.41

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초록· 키워드

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Background and Purpose: There are many methods for converting scores from the Montreal Cognitive Assessment (MoCA) to those on the Mini-Mental State Examination (MMSE). In this study we aimed to validate 4 methods that convert the full score range (0?30 points) of the MoCA to an equivalent range for the MMSE. Methods: We examined the medical records of 506 subjects who completed the MoCA and MMSE-second edition (MMSE-2) on the same day. For the validation index, we calculated mean, median, and root-mean-squared error (RMSE) of the difference between true and equivalent MMSE-2 scores. We also calculated intraclass correlation coefficients (ICCs), the Bland-Altman plot, and the generalizability coefficient between true and equivalent MMSE-2 scores for reliability. We compared the ICCs according to age, sex, education, MMSE, and cognitive-status subgroups. For accuracy, we evaluated a ±2 point difference between the true and equivalent MMSE-2 scores. Results: The 4 conversion methods had a mean of ?0.79 to ?0.05, a median of ?1 to 0, and an RMSE of 2.61?2.94 between true and equivalent MMSE-2 scores. All conversion methods had excellent reliability, with an ICC greater than 0.75 between true and equivalent MMSE-2 scores. These results were almost maintained in the subgroup analyses. These conversion methods provided more than 65% accuracy within ±2 points of the true MMSE-2 scores. Conclusions: We suggest that these 4 conversion methods are applicable for converting MoCA scores to MMSE-2 scores. They will greatly enhance the usefulness of existing cognitive data in clinical and research settings.

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