Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/106901
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Suitability of the Epworth Sleepiness Scale (ESS) for economic evaluation: an assessment of its convergent and discriminant validity |
Author: | Kaambwa, B. Mpundu-Kaambwa, C. Adams, R. Appleton, S. Martin, S. Wittert, G. |
Citation: | Behavioral Sleep Medicine, 2018; 16(5):448-470 |
Publisher: | Taylor & Francis |
Issue Date: | 2018 |
ISSN: | 1540-2002 1540-2010 |
Statement of Responsibility: | Billingsley Kaambwa, Christine Mpundu-Kaambwa, Robert Adams, Sarah Appleton, Sean Martin and Gary Wittert |
Abstract: | Objective: To assess the suitability for use within economic evaluation of a widely used sleep-related instrument (the Epworth Sleepiness Scale [ESS]) by examining its convergent and discriminant validity with two widely used generic preference-based instruments (Short-Form 36 [SF-36] and the Assessment of Quality of Life 4 dimensions [AQoL-4D]). Methods: Data from a cross-section of 2,236 community-dwelling Australian men were analyzed. Convergent validity was investigated using Spearman’s correlation, intraclass correlation, and modified Bland-Altman plots, while discriminant validity was examined using Kruskal Wallis tests. Results: All instruments showed good discriminant validity. The ESS was weakly correlated to the Short Form 6 dimension, or SF-6D (derived from the SF-36) and AQoL-4D utilities (r = 0.20 and r = 0.19, respectively). Correlations between ESS and SF-36/AQoL-4D dimensions measuring the same construct were all in the hypothesized directions but also weak (range of absolute r = 0.00 to 0.18). The level of agreement between the ESS and AQoL-4D was the weakest, followed by that between the ESS and SF-6D. Moderate convergent validity was seen between the utilities. Conclusions: The lack of convergent validity between the ESS and the preference-based instruments shows that sleep-related constructs are not captured by the latter. The ESS has, however, demonstrated good discriminant validity comparable to that of the AQoL-4D and the SF-36/SF-6D and would therefore be equally useful for measuring subgroup differences within economic evaluation. We therefore recommend using the ESS within cost-effectiveness analysis as a complement to preference-based instruments in order to capture sleep-specific constructs not measured by the latter. |
Keywords: | Humans Reproducibility of Results Psychometrics Quality of Life Adult Aged Middle Aged Cost-Benefit Analysis Female Male Surveys and Questionnaires Sleepiness |
Rights: | © 2018 Taylor & Francis Group, LLC |
DOI: | 10.1080/15402002.2016.1228647 |
Published version: | http://dx.doi.org/10.1080/15402002.2016.1228647 |
Appears in Collections: | Aurora harvest 3 Psychology publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.