The annual conversion rate of MCI to dementia is 10%-30%, compared to a rate of 1%-2% in cognitively normal elderly individuals. Mild cognitive impairment (MCI) is defined as cognitive decline which is greater than that expected for the patient's age, but which does not meet criteria for dementia. Population ageing in Chile has accelerated in recent decades 1–3 Chile currently has the third-oldest population in Latin America (after Cuba and Uruguay) and one of the highest rates of dementia among individuals older than 60 years (8%) worldwide. ConclusionesĮl MoCA-S1-2 es una prueba breve, de fácil administración y útil para el diagnóstico de DCL-a y demencia leve. El MoCA-S1-2 fue significativamente más discriminativo que el MMSE para diferenciar DCL-a y demencia. La escolaridad mostró una importante influencia en el puntaje, por ello se adicionaron 2 puntos para escolaridad < 8 años y un punto para escolaridad entre 8 y 12 años (MoCA-S1-2). El punto de corte de mejor rendimiento para DCL-a fue < 21 y para demencia leve < 20 sensibilidad/especificidad de 75/82% y 90/86%, respectivamente. La prueba fue eficaz y válida para la detección del DCL-a (ABC = 0,903) y demencia leve (ABC = 0,957) menos eficaz en DCL no-a (ABC = 0,629). La consistencia interna fue buena (α de Cronbach 0,772), la fiabilidad interevaluador muy buena (coeficiente de correlación de Spearman 0,846 ) y la fiabilidad intraevaluador (test-retest) fue 0,922 bilateral (p < 0,001). Los promedios ± desviación estándar de edad y escolaridad fueron 73 ± 6 y 11 ± 4, respectivamente, sin diferencias significativas entre los grupos. MétodosĬiento setenta y dos individuos agrupados según diagnóstico clínico basado en Clinical Dementia Rating (CDR) en: deterioro cognitivo leve tipo amnésico (DCL-a, n = 24), DCL no-amnésico (DCL-na, n = 24), demencia leve (n = 20) y 104 cognitivamente sanos fueron evaluados con el MoCA-S y Mini-Mental test de Folstein (MMSE) como prueba de contraste, para determinar la validez discriminativa del MoCA-S. ObjetivoĮvaluar las propiedades psicométricas y la validez discriminativa del MoCA-S en adultos mayores de Santiago de Chile. The MoCA-S1-2 is a short, easy-to-use, and useful test for diagnosing aMCI and mild dementia.Įxisten pocas validaciones de la versión en español de la prueba Montreal Cognitive Assessment (MoCA-S) en Latinoamérica. The MoCA-S1-2 showed significantly greater discriminant validity than the MMSE for differentiating aMCI from 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 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 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). 01), and high intra-rater reliability (test-retest reliability coefficient: 0.922 P <. The MoCA-S displayed good internal consistency (Cronbach’s α: 0.772), high inter-rater reliability (Spearman correlation coefficient: 0.846 P <. Mean age and years of schooling were 73 ± 6 and 11 ± 4 years, respectively, with no significant intergroup differences. Participants were evaluated with both the MoCA-S and the Mini-Mental State Examination (MMSE) to determine the discriminant validity of the MoCA-S. Methodsġ72 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). To evaluate the psychometric properties and discriminant validity of the MoCA-S in elderly patients in Santiago de Chile. Few studies have validated the Spanish-language version of the Montreal Cognitive Assessment (MoCA-S) test in Latin American populations.
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