Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud

Background: The Addenbrooke's Cognitive Examination III (ACE-III) is widely used for evaluation of dementia. Aim: To assess the psychometric properties of ACE-III, analyzing its factor structure, its reliability (from an Item Response Theory [TRI] model) and its diagnostic usefulness. Materi...

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Autores principales:	Véliz García,Óscar, Calderón Carvajal,Carlos, Beyle Sandoval,Christian
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2020
Materias:	Dementia Mental Status and Dementia Tests Psychometrics
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872020000901279
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spelling	oai:scielo:S0034-988720200009012792020-12-26Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de SaludVéliz García,ÓscarCalderón Carvajal,CarlosBeyle Sandoval,Christian Dementia Mental Status and Dementia Tests Psychometrics Background: The Addenbrooke's Cognitive Examination III (ACE-III) is widely used for evaluation of dementia. Aim: To assess the psychometric properties of ACE-III, analyzing its factor structure, its reliability (from an Item Response Theory [TRI] model) and its diagnostic usefulness. Material and Methods: We studied 1101 older people without cognitive impairment and 63 currently having a diagnosis and receiving treatment for dementia. Results: The presence of two factors for the Attention subscale (Orientation and Attention, separately) was suggested. The factorial analysis showed adequate adjustment in all the subscales, except for the new Attention subscale. In the TRI analysis, the Attention subscale presented a greater number of items with lack of fit compared to the other subscales. Using a proposed threshold of 66 points or less to identify cognitive impairment related to dementia, a sensitivity of 0.97 and specificity of 0.81 was obtained. Conclusions: ACE-III is a valid, reliable, and useful measure for the clinical detection of dementia. The combined use of Orientation and Memory subscales is proposed as an alternative and time-saving ACE-III indicator.info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.148 n.9 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872020000901279es10.4067/S0034-98872020000901279
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Dementia Mental Status and Dementia Tests Psychometrics
spellingShingle	Dementia Mental Status and Dementia Tests Psychometrics Véliz García,Óscar Calderón Carvajal,Carlos Beyle Sandoval,Christian Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
description	Background: The Addenbrooke's Cognitive Examination III (ACE-III) is widely used for evaluation of dementia. Aim: To assess the psychometric properties of ACE-III, analyzing its factor structure, its reliability (from an Item Response Theory [TRI] model) and its diagnostic usefulness. Material and Methods: We studied 1101 older people without cognitive impairment and 63 currently having a diagnosis and receiving treatment for dementia. Results: The presence of two factors for the Attention subscale (Orientation and Attention, separately) was suggested. The factorial analysis showed adequate adjustment in all the subscales, except for the new Attention subscale. In the TRI analysis, the Attention subscale presented a greater number of items with lack of fit compared to the other subscales. Using a proposed threshold of 66 points or less to identify cognitive impairment related to dementia, a sensitivity of 0.97 and specificity of 0.81 was obtained. Conclusions: ACE-III is a valid, reliable, and useful measure for the clinical detection of dementia. The combined use of Orientation and Memory subscales is proposed as an alternative and time-saving ACE-III indicator.
author	Véliz García,Óscar Calderón Carvajal,Carlos Beyle Sandoval,Christian
author_facet	Véliz García,Óscar Calderón Carvajal,Carlos Beyle Sandoval,Christian
author_sort	Véliz García,Óscar
title	Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
title_short	Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
title_full	Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
title_fullStr	Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
title_full_unstemmed	Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud
title_sort	propiedades psicométricas del addenbrooke's cognitive examination iii: estructura factorial, análisis tri y utilidad diagnóstica para la detección de demencia en atención primaria de salud
publisher	Sociedad Médica de Santiago
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872020000901279
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Propiedades Psicométricas del Addenbrooke's Cognitive Examination III: Estructura Factorial, Análisis TRI y Utilidad Diagnóstica para la detección de demencia en Atención Primaria de Salud

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