A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients

Chigozie A Mbadugha, Adeola O Onakoya, Olufisayo T Aribaba, Folashade B AkinsolaGuinness Eye Centre, Department of Ophthalmology, Lagos University Teaching Hospital, Lagos State, NigeriaAim: To compare two vision-specific quality of life (QOL) instruments &ndash; the disease-specific 15-item...

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Autores principales:	Mbadugha CA, Onakoya AO, Aribaba OT, Akinsola FB
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2012
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/151cae4a95f5471aa80c376b587ed33d
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spelling	oai:doaj.org-article:151cae4a95f5471aa80c376b587ed33d2021-12-02T09:16:08ZA comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients1177-54671177-5483https://doaj.org/article/151cae4a95f5471aa80c376b587ed33d2012-09-01T00:00:00Zhttp://www.dovepress.com/a-comparison-of-the-neivfq25-and-gql-15-questionnaires-in-nigerian-gla-a10892https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Chigozie A Mbadugha, Adeola O Onakoya, Olufisayo T Aribaba, Folashade B AkinsolaGuinness Eye Centre, Department of Ophthalmology, Lagos University Teaching Hospital, Lagos State, NigeriaAim: To compare two vision-specific quality of life (QOL) instruments &ndash; the disease-specific 15-item Glaucoma Quality of Life questionnaire (GQL-15) and the nonglaucoma-specific 25-item National Eye Institute Visual Function Questionnaire (NEIVFQ25).Methods: The QOL of 132 glaucoma patients being managed in Lagos University Teaching Hospital and an equal number of controls matched for age and sex was assessed using two vision-specific instruments: GQL-15 and the NEIVFQ25. The categorization of the severity of glaucoma into mild, moderate, and severe disease was determined using the degree of visual field loss. The Statistical Package for the Social Sciences (version 15; SPSS Inc, Chicago, IL) software program was used for analyzing the data obtained. Spearman&rsquo;s correlation coefficients were used to assess the correlation between the scores from the two questionnaires.Results: Patients had the greatest difficulty with activities affected by glare and dark adaptation in the GQL-15. Driving and general vision were the factors most affected in the NEIVFQ25. The Spearman rho values showed strong correlations (rho &gt; 0.55) between the NEIVFQ25 and GQL-15 QOL scores for the total number of participants (rho: &ndash;0.75), total number of cases (rho: &ndash;0.83), and the mild (rho: &ndash;0.76), moderate (rho: &ndash;0.75), and severe (rho: &ndash;0.84) cases. There was a moderate correlation (rho: &ndash;0.38) for QOL scores of controls. Cronbach&rsquo;s alpha was 0.94 for the GQL-15 and 0.93 for the NEIVFQ25, showing high internal consistency for both questionnaires.Conclusion: The GQL-15 and the NEIVFQ25 questionnaires showed high internal consistency, correlated strongly with each other, and were reliable in the assessment of glaucoma patients in this study.Keywords: primary open-angle glaucoma, quality of life questionnaires, GQL-15, NEIVFQ25Mbadugha CAOnakoya AOAribaba OTAkinsola FBDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2012, Iss default, Pp 1411-1419 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Mbadugha CA Onakoya AO Aribaba OT Akinsola FB A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
description	Chigozie A Mbadugha, Adeola O Onakoya, Olufisayo T Aribaba, Folashade B AkinsolaGuinness Eye Centre, Department of Ophthalmology, Lagos University Teaching Hospital, Lagos State, NigeriaAim: To compare two vision-specific quality of life (QOL) instruments &ndash; the disease-specific 15-item Glaucoma Quality of Life questionnaire (GQL-15) and the nonglaucoma-specific 25-item National Eye Institute Visual Function Questionnaire (NEIVFQ25).Methods: The QOL of 132 glaucoma patients being managed in Lagos University Teaching Hospital and an equal number of controls matched for age and sex was assessed using two vision-specific instruments: GQL-15 and the NEIVFQ25. The categorization of the severity of glaucoma into mild, moderate, and severe disease was determined using the degree of visual field loss. The Statistical Package for the Social Sciences (version 15; SPSS Inc, Chicago, IL) software program was used for analyzing the data obtained. Spearman&rsquo;s correlation coefficients were used to assess the correlation between the scores from the two questionnaires.Results: Patients had the greatest difficulty with activities affected by glare and dark adaptation in the GQL-15. Driving and general vision were the factors most affected in the NEIVFQ25. The Spearman rho values showed strong correlations (rho &gt; 0.55) between the NEIVFQ25 and GQL-15 QOL scores for the total number of participants (rho: &ndash;0.75), total number of cases (rho: &ndash;0.83), and the mild (rho: &ndash;0.76), moderate (rho: &ndash;0.75), and severe (rho: &ndash;0.84) cases. There was a moderate correlation (rho: &ndash;0.38) for QOL scores of controls. Cronbach&rsquo;s alpha was 0.94 for the GQL-15 and 0.93 for the NEIVFQ25, showing high internal consistency for both questionnaires.Conclusion: The GQL-15 and the NEIVFQ25 questionnaires showed high internal consistency, correlated strongly with each other, and were reliable in the assessment of glaucoma patients in this study.Keywords: primary open-angle glaucoma, quality of life questionnaires, GQL-15, NEIVFQ25
format	article
author	Mbadugha CA Onakoya AO Aribaba OT Akinsola FB
author_facet	Mbadugha CA Onakoya AO Aribaba OT Akinsola FB
author_sort	Mbadugha CA
title	A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
title_short	A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
title_full	A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
title_fullStr	A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
title_full_unstemmed	A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients
title_sort	comparison of the neivfq25 and gql-15 questionnaires in nigerian glaucoma patients
publisher	Dove Medical Press
publishDate	2012
url	https://doaj.org/article/151cae4a95f5471aa80c376b587ed33d
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A comparison of the NEIVFQ25 and GQL-15 questionnaires in Nigerian glaucoma patients

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