School of Medicine Publications and Presentations

Document Type

Article

Publication Date

4-2020

Abstract

Introduction: “Episodic” memory problems are common in people with cognitive impairment due to Alzheimer’s disease and related disorders. Dubois et al. developed the Five-Word Test (5WT) to evaluate episodic memory, which has proved to be an easy and valid test for identifying cognitive disorders. However, its validation and cultural adaptation from French to Spanish has not been undertaken and its usefulness in Mexican population is unknown.

Objective: Validation and cultural adaptation of the 5WT for screening minor and major neurocognitive disorder (ND) in Mexican older adults with probable Alzheimer’s disease.

Method: Two hundred and fifteen participants (70 cognitively healthy subjects, 73 with minor ND and 72 with major ND were included). The cognitive status (gold standard) was determined using current clinical criteria and neuropsychological evaluation. The Spearman coefficient, ROC curve, and multinomial logistic regression models were used to determine the concurrent validity of the 5WT.

Results: The correlation between the 5WT and the Mini-Mental State Exam (MMSE) was .58, whereas for the clock face test it was -.37 (p ‹ .001). The area under the 5WT curve was .97 (95% CI [.94, .99]), with a cut-off point of ≤ 16/20 for the diagnosis of major ND (89% sensitivity, 98% specificity) and .77 (95% CI [.70, .85]) for minor ND with a cut-off point of ≤ 18/20 (66% sensitivity, 77% specificity).

Discussion and conclusion. Since the 5WT is a simple, valid instrument for the identification of neurocognitive disorders like Alzheimer’s disease, it could be a practical screening test.

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Introducción: Los problemas de la memoria “episódica” son comunes en las personas con deterioro cognitivo tipo Alzheimer. Dubois et al. desarrollaron la Prueba de Cinco Palabras (P5P) para evaluar la memoria episódica, la cual ha demostrado ser sencilla y válida para identificar trastornos cognitivos. Sin embargo, su validación y adaptación cultural del francés al español no se ha realizado y se desconoce su utilidad en población mexicana.

Objetivo: Validación y adaptación cultural de la P5P para el tamizaje del trastorno neurocognitivo (TNC) menor y mayor en adultos mayores mexicanos con probable enfermedad de Alzheimer.

Método: Participaron 215 participantes (70 cognitivamente sanos, 73 con TNC menor y 72 con TNC mayor. El estado cognitivo (estándar de oro) se determinó mediante los criterios clínicos vigentes y de evaluación neuropsicológica. El coeficiente de Spearman, la curva ROC y modelos de regresión logística multinomial se utilizaron para determinar la validez concurrente de la P5P.

Resultados: La correlación entre la P5P y el MMSE fue de .58, mientras que para la prueba de reloj fue de -.37 (p < .001). El área bajo la curva de la P5P fue .97 (IC 95% [.94, .99]), con un punto de corte ≤ 16/20 para el diagnóstico del TNC mayor (sensibilidad: 89%, especificidad: 98%) y de .77 (IC 95% [.70, .85]) para el TNC menor con un punto de corte ≤ 18/20 (sensibilidad: 66%, especificidad: 77%).

Discusión y conclusión: La P5P es un instrumento válido y simple para identificar de trastornos neurocognitivos de tipo Alzheimer por lo que podría ser una prueba práctica para uso en el tamizaje.

Comments

Creative Commons License This is an open-access article distributed under the terms of the Creative Commons Attribution License

Creative Commons License

Creative Commons Attribution-NonCommercial 4.0 International License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Publication Title

Salud mental

DOI

10.17711/sm.0185-3325.2019.037

Academic Level

faculty

Mentor/PI Department

Neuroscience

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