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Estimating an EQ-5D-Y-3L Value Set for Brazil.
Caique Melo Espirito Santo1, Gisela Cristiane Miyamoto1, Verônica Souza Santos1
1Master's and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, Rua Cesário Galeno, 448/475, Tatuapé, São Paulo, 03071-000, Brazil.
A new Brazilian value set for the EQ-5D-Y-3L was developed using adult preferences. This enables quality-adjusted life-year calculations for economic evaluations in Brazilian children and adolescents.
Area of Science:
- Health Economics
- Psychometrics
- Pediatric Health
Background:
- The EQ-5D-Y-3L is a key measure for pediatric health-related quality of life.
- A Brazilian value set is needed for economic evaluations in Brazil.
- Current lack of a Brazilian value set hinders its application.
Purpose of the Study:
- To elicit a Brazilian EQ-5D-Y-3L value set.
- To use preferences from the general adult population.
- To facilitate economic evaluations for Brazilian youth.
Main Methods:
- Two adult samples surveyed using discrete choice experiment (DCE) and composite time trade-off (cTTO).
- DCE data analyzed with a mixed-logit model.
- Linear mapping without intercept selected as the best method for rescaling DCE values.
Main Results:
- 1376 Brazilian adults participated.
- Linear mapping without intercept showed strong model fit (R²=96%).
- Utilities ranged from 1 (full health) to -0.0059; pain/discomfort and mobility had highest weights.
Conclusions:
- A Brazilian EQ-5D-Y-3L value set was successfully elicited.
- The value set uses a mixed-logit DCE model and linear mapping.
- This enables quality-adjusted life-year estimation for economic evaluations in Brazilian youth.
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