Publication: Validity of the Thai EQ-5D in an occupational population in Thailand
Issued Date
2013-08-01
Resource Type
ISSN
09629343
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2-s2.0-84885177589
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Mahidol University
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SCOPUS
Bibliographic Citation
Quality of Life Research. Vol.22, No.6 (2013), 1499-1506
Suggested Citation
Merel Kimman, Prin Vathesatogkit, Mark Woodward, E. Shyong Tai, Julian Thumboo, Sukit Yamwong, Wipa Ratanachaiwong, Hwee Lin Wee, Piyamitr Sritara Validity of the Thai EQ-5D in an occupational population in Thailand. Quality of Life Research. Vol.22, No.6 (2013), 1499-1506. doi:10.1007/s11136-012-0251-2 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/32241
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Title
Validity of the Thai EQ-5D in an occupational population in Thailand
Abstract
Purpose: To assess the construct validity of the Thai EuroQoL (EQ-5D) among an occupational population in Thailand. Methods: Data were derived from a large cohort study among employees of the Electricity Generating Authority of Thailand. In 2008 and 2009, 4,850 participants completed the Thai EQ-5D and Short-Form 36 version 2 (SF-36v2). Thai preferences weights were used to convert EQ-5D health states into EQ-5D index scores. Construct validity of the Thai EQ-5D was examined by specifying and testing hypotheses about the relationships between the EQ-5D, SF-36v2, and participants' demographic and medical characteristics. Results: Construct validity of the Thai EQ-5D was supported by expected relationships with SF-36v2 scale and summary scores. For example, SF-36v2 scores on the mental health scale were much lower for participants who reported having problems on the EQ-5D anxiety/depression dimension compared to those reporting no problems (mean norm-based SF-36v2 scores: 52.9 vs. 41.8, p < 0.001). Additionally, reporting a problem in a given EQ-5D dimension was generally associated with lower SF-36v2 summary scores. The EQ-5D index score distinguished between groups of participants in the expected manner, on the basis of sex, age, education and self-reported health, thus providing evidence of known-groups validity. Conclusion: The study demonstrated good construct validity of the Thai EQ-5D in a large occupational population in Thailand. © 2012 Springer Science+Business Media B.V.