Validación del instrumento Montreal Cognitive Assessment en español en adultos mayores de 60 años

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dc.contributor.authorDelgado, Iris
dc.contributor.authorAraneda, A
dc.contributor.authorBehrens, María Isabel
dc.date.accessioned2017-08-28T19:17:50Z
dc.date.available2017-08-28T19:17:50Z
dc.date.issued2017
dc.description.abstractINTRODUCTION: Few studies have validated the Spanish-language version of the Montreal Cognitive Assessment (MoCA-S) test in Latin American populations. OBJETIVE: To evaluate the psychometric properties and discriminant validity of the MoCA-S in elderly patients in Santiago de Chile. METHODS: 172 individuals were grouped according to their clinical diagnosis based on the Clinical Dementia Rating (CDR) scale as follows: amnestic mild cognitive impairment (aMCI; n±24), non-amnestic MCI (naMCI; n±24), mild dementia (n±20), and cognitively normal (n±104). Participants were evaluated with both the MoCA-S and the Mini-Mental State Examination (MMSE) to determine the discriminant validity of the MoCA-S. RESULTS: Mean age and years of schooling were 73±6 and 11±4 years, respectively, with no significant intergroup differences. The MoCA-S displayed good internal consistency (Cronbach's α: 0.772), high inter-rater reliability (Spearman correlation coefficient: 0.846; P<.01), and high intra-rater reliability (test-retest reliability coefficient: 0.922; P<.001). The MoCA-S was found to be an effective and valid test for detecting aMCI (AUC±0.903) and mild dementia (AUC±0.957); its effectiveness for detecting naMCI was lower (AUC±0.629). The optimal cut-off points for aMCI and mild dementia were<21 and<20, respectively, with sensitivity and specificity rates of 75% and 82% for aMCI and 90% and 86% for mild dementia. The level of education had a great impact on scores: as a result, 2 points were added for patients with less than 8 years of schooling and one point for patients with 8-12 years of schooling (MoCA-S1-2). The MoCA-S1-2 showed significantly greater discriminant validity than the MMSE for differentiating aMCI from dementia. CONCLUSIONS: The MoCA-S1-2 is a short, easy-to-use, and useful test for diagnosing aMCI and mild dementia.
dc.format.extent1
dc.identifier.citationNeurologia. 2017 Mar 30. pii: S0213-4853(17)30102-0
dc.identifier.urihttp://hdl.handle.net/11447/1610
dc.identifier.urihttp://dx.doi.org/10.1016/j.nrl.2017.01.013
dc.language.isospa
dc.publisherSociedad Española de Neurología
dc.subjectAmnestic mild cognitive impairment
dc.subjectCognitive screening
dc.subjectDementia
dc.subjectLatin America
dc.subjectMinimental State Examination (MMSE)
dc.subjectMontreal Cognitive Assessment (MoCA)
dc.titleValidación del instrumento Montreal Cognitive Assessment en español en adultos mayores de 60 años
dc.title.alternativeValidation of the Spanish-language version of the Montreal Cognitive Assessment test in adults older than 60 years
dc.typeArtículo

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