Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20

Nafisa Ali,1 Mette S Sørensen,2 Torben L Sørensen,1,3 Panteleimon Mortzos1 1Department of Ophthalmology, Copenhagen University Hospital Roskilde, Roskilde, 2Research Unit for Women’s and Children’s Health, National University Hospital, 3Faculty of Health Sc...

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Autores principales:	Ali N, Sørensen MS, Sørensen TL, Mortzos P
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2015
Materias:	AS-20 strabismus questionnaire. Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/3eb392a9c04647608cdb6749cc902847
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spelling	oai:doaj.org-article:3eb392a9c04647608cdb6749cc9028472021-12-02T03:45:45ZEvaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-201177-5483https://doaj.org/article/3eb392a9c04647608cdb6749cc9028472015-12-01T00:00:00Zhttps://www.dovepress.com/evaluation-and-validity-of-the-danish-version-of-the-adult-strabismus--peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Nafisa Ali,1 Mette S Sørensen,2 Torben L Sørensen,1,3 Panteleimon Mortzos1 1Department of Ophthalmology, Copenhagen University Hospital Roskilde, Roskilde, 2Research Unit for Women’s and Children’s Health, National University Hospital, 3Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark Purpose: Assessing health-related quality of life in patients with strabismus is important in evaluating the clinical benefits of strabismus treatment. The purpose of this study was to translate the Adult Strabismus Quality of Life Questionnaire (AS-20) into Danish and evaluate its reliability and validity in adult patients with strabismus in Denmark.Methods: The AS-20 was translated into Danish in accordance with standard international adopted methods. We presented the questionnaire to 64 adults with strabismus and to 13 nonstrabismic adult controls. We tested the reliability of the Danish version by reassuring test–retest reliability, estimated the internal consistency, and analyzed the validity (discriminatory power) of the questionnaire by comparing patient scores with scores from control individuals.Results: The Danish AS-20 produced high level of internal consistency (Cronbach’s α values) for both subscales (psychosocial: 0.95 and functional: 0.85). We found good discriminatory power of the AS-20. The patients scored significantly lower not only on AS-20 composite score (median =63, interquartile range [IQR] =44–79) compared to healthy individuals (median =98, IQR =93–100) (P<0.0001) but also on all individual questions in both subscales (psychosocial: 1–10 and functional: 11–20).Conclusion: The Danish version of AS-20 shows high reliability and validity, and in our opinion, AS-20 is therefore a suitable instrument for evaluating self-perceived psychosocial and functional influence of strabismus. Keywords: AS-20, strabismus, questionnaireAli NSørensen MSSørensen TLMortzos PDove Medical PressarticleAS-20strabismusquestionnaire.OphthalmologyRE1-994ENClinical Ophthalmology, Vol 2016, Iss Issue 1, Pp 65-69 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	AS-20 strabismus questionnaire. Ophthalmology RE1-994
spellingShingle	AS-20 strabismus questionnaire. Ophthalmology RE1-994 Ali N Sørensen MS Sørensen TL Mortzos P Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
description	Nafisa Ali,1 Mette S Sørensen,2 Torben L Sørensen,1,3 Panteleimon Mortzos1 1Department of Ophthalmology, Copenhagen University Hospital Roskilde, Roskilde, 2Research Unit for Women’s and Children’s Health, National University Hospital, 3Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark Purpose: Assessing health-related quality of life in patients with strabismus is important in evaluating the clinical benefits of strabismus treatment. The purpose of this study was to translate the Adult Strabismus Quality of Life Questionnaire (AS-20) into Danish and evaluate its reliability and validity in adult patients with strabismus in Denmark.Methods: The AS-20 was translated into Danish in accordance with standard international adopted methods. We presented the questionnaire to 64 adults with strabismus and to 13 nonstrabismic adult controls. We tested the reliability of the Danish version by reassuring test–retest reliability, estimated the internal consistency, and analyzed the validity (discriminatory power) of the questionnaire by comparing patient scores with scores from control individuals.Results: The Danish AS-20 produced high level of internal consistency (Cronbach’s α values) for both subscales (psychosocial: 0.95 and functional: 0.85). We found good discriminatory power of the AS-20. The patients scored significantly lower not only on AS-20 composite score (median =63, interquartile range [IQR] =44–79) compared to healthy individuals (median =98, IQR =93–100) (P<0.0001) but also on all individual questions in both subscales (psychosocial: 1–10 and functional: 11–20).Conclusion: The Danish version of AS-20 shows high reliability and validity, and in our opinion, AS-20 is therefore a suitable instrument for evaluating self-perceived psychosocial and functional influence of strabismus. Keywords: AS-20, strabismus, questionnaire
format	article
author	Ali N Sørensen MS Sørensen TL Mortzos P
author_facet	Ali N Sørensen MS Sørensen TL Mortzos P
author_sort	Ali N
title	Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
title_short	Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
title_full	Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
title_fullStr	Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
title_full_unstemmed	Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20
title_sort	evaluation and validity of the danish version of the adult strabismus questionnaire as-20
publisher	Dove Medical Press
publishDate	2015
url	https://doaj.org/article/3eb392a9c04647608cdb6749cc902847
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Evaluation and validity of the Danish version of the Adult Strabismus Questionnaire AS-20

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