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EQ-5D-5L Portuguese population norms
Pedro L Ferreira1,2, Luís N Pereira3,2,4, Patrícia Antunes2,5
1Faculty of Economics, University of Coimbra, Coimbra, Portugal.
Summary
New Portuguese population norms for the EQ-5D-5L quality-of-life measure are now available. These reference scores reveal lower health utility for women, older adults, and those with chronic conditions.
Area of Science:
- Health Economics
- Public Health
- Psychometrics
Background:
- The EQ-5D-5L is a widely used preference-based measure of health-related quality of life.
- A Portuguese population value set for the EQ-5D-5L has recently been developed.
- Establishing population norms is crucial for interpreting EQ-5D-5L scores.
Purpose of the Study:
- To establish EQ-5D-5L population norms for Portugal.
- To identify sociodemographic factors associated with EQ-5D-5L scores in the Portuguese population.
Main Methods:
- A representative sample of 1006 Portuguese adults (≥18 years) was surveyed.
- The sample was stratified by gender, age, and region.
- Health status was assessed using the EQ-5D-5L and EuroQol-Visual Analogue Scale (EQ VAS) via telephone interviews.
Main Results:
- The mean EQ-5D-5L index for the Portuguese population was 0.887 (SE=0.0051).
- The mean EQ VAS score was 76.0 (SE=0.640).
- Lower EQ-5D-5L scores were associated with being female, aged 70+, having low education, or having a chronic disease (p<0.001). Residents of the Azores and Algarve reported higher utility.
Conclusions:
- The derived EQ-5D-5L population norms serve as valuable reference scores for Portugal.
- These norms align with those observed in other countries.
- The findings support clinical, economic, and policy decisions regarding population health in Portugal.
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