The EQ-5D and SF-36 achieved mixed results in the quantitative testing against psychometric criteria .
The qualitative analysis suggests this is because they provide a very limited coverage of themes identified by people with mental health problems .
BACKGROUND Generic preference-based measures of health like the EQ-5D and SF-6D ( ® ) are increasingly being used in economic evaluation and outcome assessment .
However , there are concerns as to whether or not these generic measures are appropriate for use in people with mental health problems .
OBJECTIVES The EQ-5D and SF-36 ( ® ) ( including its derivatives the SF-12 ( ® ) and SF-6D ) were assessed using the psychometric criteria of validity and responsiveness using quantitative and qualitative methods .
Another aim was to estimate mapping functions between the EQ-5D and SF-6D and condition-specific measures , where appropriate .
Estimating a preference-based index from the Japanese SF-36.
OBJECTIVE The main objective of the study was to estimate a preference-based Short Form (SF)-6D index from the SF-36 for Japan and compare it with the UK results . STUDY DESIGN AND SETTING The SF-6D was translated into Japanese . Two hundred and forty-nine health states defined by this version of the SF-6D were then valued by a representative sample of 600 members of the Japanese general population using st and ard gamble ( SG ) . These health-state values were modeled using classical parametric r and om-effect methods with individual-level data and ordinary least squares ( OLS ) on mean health-state values , together with a new nonparametric approach using Bayesian methods of estimation . RESULTS All parametric models estimated on Japanese data were found to perform less well than their UK counterparts in terms of poorer goodness of fit , more inconsistencies , larger prediction errors and bias , and evidence of systematic bias in the predictions . Nonparametric models produce a substantial improvement in out-of- sample predictions . The physical , role , and social dimensions have relatively larger decrements than pain and mental health compared with those in the United Kingdom . CONCLUSION The differences between Japanese and UK valuations of the SF-6D make it important to use the Japanese valuation data set estimated using the nonparametric Bayesian technique presented in this article
The EQ-5D and SF-36 achieved mixed results in the quantitative testing against psychometric criteria .
The qualitative analysis suggests this is because they provide a very limited coverage of themes identified by people with mental health problems .
BACKGROUND Generic preference-based measures of health like the EQ-5D and SF-6D ( ® ) are increasingly being used in economic evaluation and outcome assessment .
However , there are concerns as to whether or not these generic measures are appropriate for use in people with mental health problems .
OBJECTIVES The EQ-5D and SF-36 ( ® ) ( including its derivatives the SF-12 ( ® ) and SF-6D ) were assessed using the psychometric criteria of validity and responsiveness using quantitative and qualitative methods .
Another aim was to estimate mapping functions between the EQ-5D and SF-6D and condition-specific measures , where appropriate .