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Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties
BACKGROUND: This study aimed to develop a Thai version of the Dry Eye–Related Quality-of-Life Score (DEQS-Th) questionnaire and evaluate its validity, reliability, and feasibility among Thai participants. METHODS: The DEQS-Th, a 15-item self-report measuring dry eye and its impact on quality of life...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400753/ https://www.ncbi.nlm.nih.gov/pubmed/34454466 http://dx.doi.org/10.1186/s12886-021-02077-0 |
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author | Tansanguan, Sasiwimon Tananuvat, Napaporn Wongpakaran, Nahathai Wongpakaran, Tinakon Ausayakhun, Somsanguan |
author_facet | Tansanguan, Sasiwimon Tananuvat, Napaporn Wongpakaran, Nahathai Wongpakaran, Tinakon Ausayakhun, Somsanguan |
author_sort | Tansanguan, Sasiwimon |
collection | PubMed |
description | BACKGROUND: This study aimed to develop a Thai version of the Dry Eye–Related Quality-of-Life Score (DEQS-Th) questionnaire and evaluate its validity, reliability, and feasibility among Thai participants. METHODS: The DEQS-Th, a 15-item self-report measuring dry eye and its impact on quality of life (QOL) was developed based on the DEQS. The questionnaire was divided into two subscales: Bothersome Ocular Symptoms (six questions), and Impact on Daily Life (nine questions). It employed a 5-point Likert scale, addressing on both the frequency and the degree of symptoms. Backward and forward and cultural adaptation process translation methods were employed. Thirty healthy participants were enrolled to evaluate the feasibility of the DEQS-Th in terms of difficulty and convenience. Reliability was assessed using internal consistency determined by Cronbach’s alpha, with values > 0.7 considered acceptable. Convergent validity was determined by the correlation between DEQS-Th and overall health status. Confirmatory factor analysis was conducted for its factor structure. RESULTS: The participants’ mean age was 38.6 ± 12.9 years, and 23 (76.7%) were females. The mean time to complete the questionnaire was 9.3 ± 2.7 min. The Cronbach’s alpha of the ocular symptoms subscale, impact on QOL subscale, and summary score on frequency and degree were 0.80 and 0.70, 0.89 and 0.89, and 0.90 and 0.89, respectively. The overall health status significantly correlated with the summary score (r = 0.564, p = .001), subscale ocular symptoms (r = 0.594, p = .001), and impact on QOL scores (r = 0.626, p < .001) of the DEQS-Th, respectively. A one-factor model fitted the data the best for both the ocular symptoms subscale (CFI = 1.000, TLI = 1.000, RMSEA = 0.000) and the impact on QOL subscale (CFI = 0.998, TLI = 0.997, RMSEA = 0.053). CONCLUSION: When tested among normal participants, the DEQS-Th is a valid and reliable measurement for dry eye symptoms and impact on QOL. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12886-021-02077-0. |
format | Online Article Text |
id | pubmed-8400753 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-84007532021-08-30 Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties Tansanguan, Sasiwimon Tananuvat, Napaporn Wongpakaran, Nahathai Wongpakaran, Tinakon Ausayakhun, Somsanguan BMC Ophthalmol Research BACKGROUND: This study aimed to develop a Thai version of the Dry Eye–Related Quality-of-Life Score (DEQS-Th) questionnaire and evaluate its validity, reliability, and feasibility among Thai participants. METHODS: The DEQS-Th, a 15-item self-report measuring dry eye and its impact on quality of life (QOL) was developed based on the DEQS. The questionnaire was divided into two subscales: Bothersome Ocular Symptoms (six questions), and Impact on Daily Life (nine questions). It employed a 5-point Likert scale, addressing on both the frequency and the degree of symptoms. Backward and forward and cultural adaptation process translation methods were employed. Thirty healthy participants were enrolled to evaluate the feasibility of the DEQS-Th in terms of difficulty and convenience. Reliability was assessed using internal consistency determined by Cronbach’s alpha, with values > 0.7 considered acceptable. Convergent validity was determined by the correlation between DEQS-Th and overall health status. Confirmatory factor analysis was conducted for its factor structure. RESULTS: The participants’ mean age was 38.6 ± 12.9 years, and 23 (76.7%) were females. The mean time to complete the questionnaire was 9.3 ± 2.7 min. The Cronbach’s alpha of the ocular symptoms subscale, impact on QOL subscale, and summary score on frequency and degree were 0.80 and 0.70, 0.89 and 0.89, and 0.90 and 0.89, respectively. The overall health status significantly correlated with the summary score (r = 0.564, p = .001), subscale ocular symptoms (r = 0.594, p = .001), and impact on QOL scores (r = 0.626, p < .001) of the DEQS-Th, respectively. A one-factor model fitted the data the best for both the ocular symptoms subscale (CFI = 1.000, TLI = 1.000, RMSEA = 0.000) and the impact on QOL subscale (CFI = 0.998, TLI = 0.997, RMSEA = 0.053). CONCLUSION: When tested among normal participants, the DEQS-Th is a valid and reliable measurement for dry eye symptoms and impact on QOL. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12886-021-02077-0. BioMed Central 2021-08-28 /pmc/articles/PMC8400753/ /pubmed/34454466 http://dx.doi.org/10.1186/s12886-021-02077-0 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Tansanguan, Sasiwimon Tananuvat, Napaporn Wongpakaran, Nahathai Wongpakaran, Tinakon Ausayakhun, Somsanguan Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title | Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title_full | Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title_fullStr | Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title_full_unstemmed | Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title_short | Thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
title_sort | thai version of the dry eye-related quality-of-life score questionnaire: preliminary assessment for psychometric properties |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400753/ https://www.ncbi.nlm.nih.gov/pubmed/34454466 http://dx.doi.org/10.1186/s12886-021-02077-0 |
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