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Mapping SF-36 onto the EQ-5D index: how reliable is the relationship?

Rowen, D., Brazier, J. and Roberts, J. (2009) Mapping SF-36 onto the EQ-5D index: how reliable is the relationship? Discussion Paper. Health and Quality of Life Outcomes

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Mapping from health status measures onto generic preference-based measures is becoming a common solution when health state utility values are not directly available for economic evaluation. However the accuracy and reliability of the models employed is largely untested, and there is little evidence of their suitability in patient datasets. This paper examines whether mapping approaches are reliable and accurate in terms of their predictions for a large and varied UK patient dataset. SF-36 dimension scores are mapped onto the EQ-5D index using a number of different model specifications. The predicted EQ-5D scores for subsets of the sample are compared across inpatient and outpatient settings and medical conditions. This paper compares the results to those obtained from existing mapping functions. Our results suggest that models mapping the SF-36 onto the EQ-5D have similar predictions across inpatient and outpatient setting and medical conditions. However, the models overpredict for more severe EQ-5D states; this problem is also present in the existing mapping functions.

Item Type: Monograph (Discussion Paper)
Keywords: health status; SF-36; SF-12; EQ-5D; utility; mapping
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Economics (Sheffield)
The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Health and Related Research (Sheffield) > Health Economics and Decision Science > HEDS Discussion Paper Series
Depositing User: ScHARR / HEDS (Sheffield)
Date Deposited: 15 Jul 2010 09:53
Last Modified: 05 Jun 2014 06:37
Status: Published
Publisher: Health and Quality of Life Outcomes
Identification Number: HEDS Discussion Paper 08/14
URI: http://eprints.whiterose.ac.uk/id/eprint/11019

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