EQ-5D-5L Values and Determinants for a Vietnamese Population.

OBJECTIVE

The aim of this study was to update EQ-5D-5L data on health-related quality of life (HRQoL) in the Vietnamese population using the EQ-5D-5L instrument and examine associated sociodemographic and health-related factors.

METHOD: A cross-sectional online survey was conducted between April and May 2025 among 3550 Vietnamese adults aged 18 years and older across three geographic regions. Participants were recruited through convenience and snowball sampling using online platforms. HRQoL was assessed using the EQ-5D-5L index (derived from the Vietnamese value set) and the EQ-VAS. Descriptive statistics, t-tests, ANOVA, and multivariable Tobit regressions were used.

RESULTS

The mean EQ-5D-5L index score was 0.896 (SD 0.14) and the mean EQ-VAS score was 86.7 (SD 11.8). Significant differences were observed across age groups, employment status, education levels, and chronic disease presence (p < 0.001). Older age, unemployment, low education, and multiple morbidities were independently associated with lower HRQoL scores.

CONCLUSION

The findings provide updated data for HRQoL in Vietnam, confirming the impact of age, socioeconomic status, and health conditions. These results are useful for healthcare planning, health economic evaluations, and prioritizing public health interventions in Vietnam.