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Quality of Life Research
Published in: Quality of Life Research 6/2013

01-08-2013 | Brief Communication

Validity of the Thai EQ-5D in an occupational population in Thailand

Authors: Merel Kimman, Prin Vathesatogkit, Mark Woodward, E-Shyong Tai, Julian Thumboo, Sukit Yamwong, Wipa Ratanachaiwong, Hwee-Lin Wee, Piyamitr Sritara

Published in: Quality of Life Research | Issue 6/2013

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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.
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Metadata
Title
Validity of the Thai EQ-5D in an occupational population in Thailand
Authors
Merel Kimman
Prin Vathesatogkit
Mark Woodward
E-Shyong Tai
Julian Thumboo
Sukit Yamwong
Wipa Ratanachaiwong
Hwee-Lin Wee
Piyamitr Sritara
Publication date
01-08-2013
Publisher
Springer Netherlands
Published in
Quality of Life Research / Issue 6/2013
Print ISSN: 0962-9343
Electronic ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-012-0251-2

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