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Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China

The EQ-5D-3L and SF-6D are the most commonly used economic evaluation instruments. Data comparing the psychometric properties of the instruments are scarce in the Chinese population. This study compared the psychometric properties of these measures in the Chinese general population in Chengdu. From...

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Autores principales: Zhao, Longchao, Liu, Xiang, Liu, Danping, He, Yan, Liu, Zhijun, Li, Ningxiu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer Health 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6426629/
https://www.ncbi.nlm.nih.gov/pubmed/30882636
http://dx.doi.org/10.1097/MD.0000000000014719
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author Zhao, Longchao
Liu, Xiang
Liu, Danping
He, Yan
Liu, Zhijun
Li, Ningxiu
author_facet Zhao, Longchao
Liu, Xiang
Liu, Danping
He, Yan
Liu, Zhijun
Li, Ningxiu
author_sort Zhao, Longchao
collection PubMed
description The EQ-5D-3L and SF-6D are the most commonly used economic evaluation instruments. Data comparing the psychometric properties of the instruments are scarce in the Chinese population. This study compared the psychometric properties of these measures in the Chinese general population in Chengdu. From October to December 2012, 2186 respondents (age ≥18) were selected from urban and rural areas of Chengdu, China, via multistage stratified cluster sampling. Correlations, scatter plots and Bland-Altman plots were used to explore the relationships between the 2 measures. Ceiling and floor effects were used to analyze the score distribution. The known-groups method was used to evaluate discriminant validity. Among 2186 respondents, 2182 completed the questionnaire, and 2178 (18–82 years old, mean 46.09 ± 17.49) met the data quality requirement. The mean scores for the EQ-5D-3L(CN), EQ-5D-3L(UK), and SF-6D(UK) were 0.95 (Std: 0.11), 0.93 (Std: 0.15), and 0.79 (Std: 0.12), respectively. The correlations between domains ranged from 0.16 to 0.51. The correlation between the EQ-5D-3L(CN) and SF-6D(UK) and between the EQ-5D-3L(UK) and SF-6D(UK) was 0.46. The scatter plots and Bland-Altman plots demonstrated poor agreement between the EQ-5D-3L and SF-6D. The floor and ceiling effects were respectively 0.05% and 74.60% for the EQ-5D-3L and 0.05% and 2.53% for the SF-6D(UK). The EQ-5D-3L(CN), EQ-5D-3L(UK) and SF-6D have good discriminant validity in different sociodemographic and health condition groups. The SF-6D has higher level of discriminant validity in moderately healthy groups in the EQ-5D-3L full-health population. Both the EQ-5D-3L and SF-6D are valid economic evaluation instruments in the Chinese general population in Chengdu but do not seem to be interchangeable. The EQ-5D-3L has a higher ceiling effect and higher level of discriminant validity among different sociodemographic groups, and the SF-6D has a lower ceiling effect and higher level of discriminant validity in health condition groups. Users may consider the evidence in the choice of these instruments.
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spelling pubmed-64266292019-04-15 Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China Zhao, Longchao Liu, Xiang Liu, Danping He, Yan Liu, Zhijun Li, Ningxiu Medicine (Baltimore) Research Article The EQ-5D-3L and SF-6D are the most commonly used economic evaluation instruments. Data comparing the psychometric properties of the instruments are scarce in the Chinese population. This study compared the psychometric properties of these measures in the Chinese general population in Chengdu. From October to December 2012, 2186 respondents (age ≥18) were selected from urban and rural areas of Chengdu, China, via multistage stratified cluster sampling. Correlations, scatter plots and Bland-Altman plots were used to explore the relationships between the 2 measures. Ceiling and floor effects were used to analyze the score distribution. The known-groups method was used to evaluate discriminant validity. Among 2186 respondents, 2182 completed the questionnaire, and 2178 (18–82 years old, mean 46.09 ± 17.49) met the data quality requirement. The mean scores for the EQ-5D-3L(CN), EQ-5D-3L(UK), and SF-6D(UK) were 0.95 (Std: 0.11), 0.93 (Std: 0.15), and 0.79 (Std: 0.12), respectively. The correlations between domains ranged from 0.16 to 0.51. The correlation between the EQ-5D-3L(CN) and SF-6D(UK) and between the EQ-5D-3L(UK) and SF-6D(UK) was 0.46. The scatter plots and Bland-Altman plots demonstrated poor agreement between the EQ-5D-3L and SF-6D. The floor and ceiling effects were respectively 0.05% and 74.60% for the EQ-5D-3L and 0.05% and 2.53% for the SF-6D(UK). The EQ-5D-3L(CN), EQ-5D-3L(UK) and SF-6D have good discriminant validity in different sociodemographic and health condition groups. The SF-6D has higher level of discriminant validity in moderately healthy groups in the EQ-5D-3L full-health population. Both the EQ-5D-3L and SF-6D are valid economic evaluation instruments in the Chinese general population in Chengdu but do not seem to be interchangeable. The EQ-5D-3L has a higher ceiling effect and higher level of discriminant validity among different sociodemographic groups, and the SF-6D has a lower ceiling effect and higher level of discriminant validity in health condition groups. Users may consider the evidence in the choice of these instruments. Wolters Kluwer Health 2019-03-15 /pmc/articles/PMC6426629/ /pubmed/30882636 http://dx.doi.org/10.1097/MD.0000000000014719 Text en Copyright © 2019 the Author(s). Published by Wolters Kluwer Health, Inc. http://creativecommons.org/licenses/by-nc/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc/4.0
spellingShingle Research Article
Zhao, Longchao
Liu, Xiang
Liu, Danping
He, Yan
Liu, Zhijun
Li, Ningxiu
Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title_full Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title_fullStr Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title_full_unstemmed Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title_short Comparison of the psychometric properties of the EQ-5D-3L and SF-6D in the general population of Chengdu city in China
title_sort comparison of the psychometric properties of the eq-5d-3l and sf-6d in the general population of chengdu city in china
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6426629/
https://www.ncbi.nlm.nih.gov/pubmed/30882636
http://dx.doi.org/10.1097/MD.0000000000014719
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