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Barton, Garry R. 
ORCID: https://orcid.org/0000-0001-9040-011X, Hodgekins, Jo, Mugford, Miranda, Jones, Peter B., Croudace, Tim and Fowler, David
(2009)
Measuring the benefits of treatment for psychosis: validity and responsiveness of the EQ-5D.
The British Journal of Psychiatry, 195 (2).
pp. 170-176.
ISSN 1472-1465
Abstract
BACKGROUND: The UK National Institute for Health and Clinical Excellence (NICE) has recommended that cost-effectiveness analysis includes the EQ-5D; however, this is often not implemented in the area of mental health. AIMS: To assess the appropriateness of using the EQ-5D to measure improvements in mental health. METHOD: Seventy-seven participants with psychosis were rated according to the EQ-5D and seven measures of mental health at both pre- and post-intervention. To assess construct validity we compared the (pre-intervention) mean EQ-5D scores for those with milder and more severe scores, according to each of the seven measures. To assess responsiveness we estimated the mean EQ-5D change score for those who improved (post-intervention), according to each of the measures. RESULTS: The mean EQ-5D score was more favourable for both those with milder scores (mean difference: 0.044 to 0.301) and for those who improved post-intervention (mean change: 0.029 to 0.117). CONCLUSIONS: This suggests the EQ-5D should be considered for use in future cost-effectiveness studies in the area of mental health.
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