Using the effect size to model change in preference values from descriptive health status

Sanderson, K., Andrews, G., Corry, J. and Lapsley, H. (2004) Using the effect size to model change in preference values from descriptive health status. Quality of Life Research, 13 7: 1255-1264. doi:10.1023/B:QURE.0000037482.92757.82

Author Sanderson, K.
Andrews, G.
Corry, J.
Lapsley, H.
Title Using the effect size to model change in preference values from descriptive health status
Journal name Quality of Life Research   Check publisher's open access policy
ISSN 0962-9343
Publication date 2004-09
Sub-type Article (original research)
DOI 10.1023/B:QURE.0000037482.92757.82
Volume 13
Issue 7
Start page 1255
End page 1264
Total pages 10
Place of publication Dordrecht, Netherlands
Publisher Kluwer Academic Publisher
Collection year 2004
Language eng
Subject C1
321299 Public Health and Health Services not elsewhere classified
730299 Public health not elsewhere classified
1117 Public Health and Health Services
Abstract Objectives: This pilot study describes a modelling approach to translate group-level changes in health status into changes in preference values, by using the effect size (ES) to summarize group-level improvement. Methods: ESs are the standardized mean difference between treatment groups in standard deviation (SD) units. Vignettes depicting varying severity in SD decrements on the SF-12 mental health summary scale, with corresponding symptom severity profiles, were valued by a convenience sample of general practitioners (n = 42) using the rating scale (RS) and time trade-off methods. Translation factors between ES differences and change in preference value were developed for five mental disorders, such that ES from published meta-analyses could be transformed into predicted changes in preference values. Results: An ES difference in health status was associated with an average 0.171-0.204 difference in preference value using the RS, and 0.104-0.158 using the time trade off. Conclusions: This observed relationship may be particular to the specific versions of the measures employed in the present study. With further development using different raters and preference measures, this approach may expand the evidence base available for modelling preference change for economic analyses from existing data.
Keyword Health Care Sciences & Services
Public, Environmental & Occupational Health
Effect Sizes
Mental Disorders
Rating Scale
Time Trade Off
Cost-utility Analysis
Primary-care Patients
Maintenance Treatment
Recurrent Depression
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
2005 Higher Education Research Data Collection
School of Medicine Publications
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Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 23 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 03:23:38 EST