Comparing EQ-5D-3L and EQ-5D-5L Performance in Common Cancers: Suggestions for Instrument Choosing
Overview
Rehabilitation Medicine
Authors
Affiliations
Purpose: To compare the performance of three-level EuroQol five-dimensions (EQ-5D-3L) and five-level EuroQol five-dimensions (EQ-5D-5L) among common cancer patients in urban China.
Methods: A hospital-based cross-sectional survey was conducted in three provinces from 2016 to 2018 in urban China. Patients with breast cancer, colorectal cancer, or lung cancer were recruited to complete the EQ-5D-3L and EQ-5D-5L questionnaires. Response distribution, discriminatory power (indicator: Shannon index [H'] and Shannon evenness index [J']), ceiling effect (the proportion of full health state), convergent validity, and health-related quality of life (HRQoL) were compared between the two instruments.
Results: A total of 1802 cancer patients (breast cancer: 601, colorectal cancer: 601, lung cancer: 600) were included, with the mean age of 55.6 years. The average inconsistency rate was 4.4%. Compared with EQ-5D-3L (average: H' = 1.100, J' = 0.696), an improved discriminatory power was observed in EQ-5D-5L (H' = 1.473, J' = 0.932), especially contributing to anxiety/depression dimensions. The ceiling effect was diminished in EQ-5D-5L (26.5%) in comparison with EQ-5D-3L (34.5%) (p < 0.001), mainly reflected in the pain/discomfort and anxiety/depression dimensions. The overall utility score was 0.790 (95% CI 0.778-0.801) for EQ-5D-3L and 0.803 (0.790-0.816) for EQ-5D-5L (p < 0.001). A similar pattern was also observed in the detailed cancer-specific analysis.
Conclusions: With greater discriminatory power, convergent validity and lower ceiling, EQ-5D-5L may be preferable to EQ-5D-3L for the assessment of HRQoL among cancer patients. However, higher utility scores derived form EQ-5D-5L may also lead to lower QALY gains than those of 3L potentially in cost-utility studies and underestimation in the burden of disease.
Pangestu S, Purba F, Setyowibowo H, Mukuria C, Rencz F Qual Life Res. 2025; .
PMID: 39998755 DOI: 10.1007/s11136-025-03925-y.
Poonyakanok V, Eagjeen J, Kwangngoen T, Leelahavarong P, Chitpim N Cancer Rep (Hoboken). 2025; 8(2):e70139.
PMID: 39929698 PMC: 11810482. DOI: 10.1002/cnr2.70139.
Tai Z, Wan D, Zan Q, Huang Y, Xu C Front Med (Lausanne). 2025; 11():1451979.
PMID: 39835100 PMC: 11744716. DOI: 10.3389/fmed.2024.1451979.
Xie S, Wu J, Chen P, He X, Zhao K, Xie F BMC Public Health. 2024; 24(1):3485.
PMID: 39695490 PMC: 11656610. DOI: 10.1186/s12889-024-20999-4.
Awan A, Stober C, Pond G, Machado I, Clemons L, Conter H Breast Cancer Res Treat. 2024; 208(3):523-533.
PMID: 39083190 PMC: 11522049. DOI: 10.1007/s10549-024-07443-2.