Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis

ABSTRACT Background: The Health Assessment Questionnaire Disability Index (HAQDI) is one of the main instruments used to evaluate functional status in rheumatoid arthritis (RA). Aim: To assess the reliability and validity of the Spanish version of HAQDI in Chilean RA population. Materials and Met...

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Autores principales:	Durán,Josefina, Domínguez,Angélica, Espinoza,Manuel
Lenguaje:	English
Publicado:	Sociedad Médica de Santiago 2019
Materias:	Arthritis Arthritis, Rheumatoid Disability Evaluation Quality of Life
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872019000500612
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spelling	oai:scielo:S0034-988720190005006122020-02-28Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritisDurán,JosefinaDomínguez,AngélicaEspinoza,Manuel Arthritis Arthritis, Rheumatoid Disability Evaluation Quality of Life ABSTRACT Background: The Health Assessment Questionnaire Disability Index (HAQDI) is one of the main instruments used to evaluate functional status in rheumatoid arthritis (RA). Aim: To assess the reliability and validity of the Spanish version of HAQDI in Chilean RA population. Materials and Methods: The questionnaire was applied to 98 patients with RA aged 44 ± 12 years (90% women). Reliability was assessed using Cronbach’s alpha statistic for internal consistency. Construct validity was assessed by comparing total HAQDI value and eight HAQDI domains with multiple parameters of disease activity. Discriminant validity was evaluated by classifying disease activity in low, medium or high and evaluating HAQDI value in each category. Floor and ceiling effects were evaluated. To assess construct validity, principal components analysis was performed using varimax rotation. Results: There were no issues in the comprehensibility of the questionnaire. Mean HAQDI score was 1.57 ± 0.66. Standardized Cronbach’s Alpha was 0.883. Correlations between Chilean HAQ domains had a p value less than 0.001, and values ranged from 0.317 to 0.597. Activity parameters, DAS 28 and CDAI were significantly correlated with HAQDI domains. Mean HAQDI values were 0.98 ± 0.59,1.45 ± 0.57, and 1.90 ± 0.56 for mild, moderate and severe disease activity. A principal components analysis identified two factors that accounted for 70.0% of total variability. Conclusions: This study shows that the Spanish version of HAQDI is reliable and valid and can be used in Chilean patients with RA.info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.147 n.5 20192019-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872019000500612en10.4067/S0034-98872019000500612
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Arthritis Arthritis, Rheumatoid Disability Evaluation Quality of Life
spellingShingle	Arthritis Arthritis, Rheumatoid Disability Evaluation Quality of Life Durán,Josefina Domínguez,Angélica Espinoza,Manuel Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
description	ABSTRACT Background: The Health Assessment Questionnaire Disability Index (HAQDI) is one of the main instruments used to evaluate functional status in rheumatoid arthritis (RA). Aim: To assess the reliability and validity of the Spanish version of HAQDI in Chilean RA population. Materials and Methods: The questionnaire was applied to 98 patients with RA aged 44 ± 12 years (90% women). Reliability was assessed using Cronbach’s alpha statistic for internal consistency. Construct validity was assessed by comparing total HAQDI value and eight HAQDI domains with multiple parameters of disease activity. Discriminant validity was evaluated by classifying disease activity in low, medium or high and evaluating HAQDI value in each category. Floor and ceiling effects were evaluated. To assess construct validity, principal components analysis was performed using varimax rotation. Results: There were no issues in the comprehensibility of the questionnaire. Mean HAQDI score was 1.57 ± 0.66. Standardized Cronbach’s Alpha was 0.883. Correlations between Chilean HAQ domains had a p value less than 0.001, and values ranged from 0.317 to 0.597. Activity parameters, DAS 28 and CDAI were significantly correlated with HAQDI domains. Mean HAQDI values were 0.98 ± 0.59,1.45 ± 0.57, and 1.90 ± 0.56 for mild, moderate and severe disease activity. A principal components analysis identified two factors that accounted for 70.0% of total variability. Conclusions: This study shows that the Spanish version of HAQDI is reliable and valid and can be used in Chilean patients with RA.
author	Durán,Josefina Domínguez,Angélica Espinoza,Manuel
author_facet	Durán,Josefina Domínguez,Angélica Espinoza,Manuel
author_sort	Durán,Josefina
title	Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
title_short	Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
title_full	Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
title_fullStr	Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
title_full_unstemmed	Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis
title_sort	evaluation of the health assessment questionnaire disability index in chilean patients with rheumatoid arthritis
publisher	Sociedad Médica de Santiago
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872019000500612
work_keys_str_mv	AT duranjosefina evaluationofthehealthassessmentquestionnairedisabilityindexinchileanpatientswithrheumatoidarthritis AT dominguezangelica evaluationofthehealthassessmentquestionnairedisabilityindexinchileanpatientswithrheumatoidarthritis AT espinozamanuel evaluationofthehealthassessmentquestionnairedisabilityindexinchileanpatientswithrheumatoidarthritis
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Evaluation of the Health Assessment Questionnaire Disability Index in Chilean patients with rheumatoid arthritis

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