Back to Search
Start Over
Is Dimension Order Important when Valuing Health States Using Discrete Choice Experiments Including Duration?
- Source :
- PharmacoEconomics. 35(4)
- Publication Year :
- 2016
-
Abstract
- © 2016, Springer International Publishing Switzerland. Background: Discrete choice experiments with duration (DCETTO) can be used to estimate utility values for preference-based measures, such as the EQ-5D-5L. For self-completion, the health dimensions are presented in a standard order. However, for valuation, this may result in order effects. Thus, it is important to understand whether health state dimension ordering affects values. The aim of this study was to examine the importance of dimension ordering on DCE values using EQ-5D-5L. Methods: A choice experiment presenting two health profiles and a third immediate death option was developed. A three-arm study was used, with the same 120 choice sets presented online across each arm (n = 360 per arm). Arm 1 presented the standard EQ-5D-5L dimension order, arm 2 randomised order between respondents, and arm 3 randomised within respondents. Conditional logit regression was used to assess model consistency, and scale parameter testing was used to assess model poolability. Results: There were minor inconsistencies across each arm, but the magnitudes of the coefficients produced were generally consistent. Arm 3 produced the largest range of utility values (1 to −0.980). Scale parameter testing suggested that the models did not differ, and the data could be pooled. Follow-up questions did not suggest variation in terms of difficulty. Conclusions: The results suggest that the level of randomisation used in DCE health state valuation studies does not significantly impact values, and dimension order may not be as important as other study design issues. The results support past valuation studies that use the standard order of dimensions.
- Subjects :
- Adult
Male
Adolescent
discrete choice
Health Status
Discrete choice experiment
Logistic regression
health state valuation studies
Choice Behavior
Health administration
03 medical and health sciences
Young Adult
0302 clinical medicine
Surveys and Questionnaires
Statistics
Order dimension
Econometrics
Humans
030212 general & internal medicine
Valuation (finance)
Mathematics
Aged
Pharmacology
Health economics
dimension order
030503 health policy & services
Health Policy
Public Health, Environmental and Occupational Health
Middle Aged
Models, Theoretical
Quality-adjusted life year
EQ-5D-5L
Logistic Models
Health Policy & Services
Female
Quality-Adjusted Life Years
utility values
0305 other medical science
Scale parameter
Subjects
Details
- ISSN :
- 11792027
- Volume :
- 35
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- PharmacoEconomics
- Accession number :
- edsair.doi.dedup.....d7364d57203d6a700a0e1736e67d2b2f