RT Journal Article T1 Psychometric Properties of the Spanish Versions of EQ-5D-Y-3L and EQ-5D-Y-5L in Children with Cancer: A Comparative Study A1 Pérez Sousa, Miguel Ángel A1 Olivares Sánchez-Toledo, Pedro Rufino A1 Gusi, Narcis AB Background: The recent published version with five levels of response of EQ-5D-Yneeds to be studied in children with chronic illness. For this, the aim of the present study wasto assess and compare the psychometric properties of EQ-5D-Y-3L and EQ-5D-Y-5L in terms offeasibility, ceiling effect, redistribution properties, informativity and inconsistence responses inchildren with cancer. (2) Methods: A core set of self-report tools, including the Spanish version ofEQ-5D-Y-3L and EQ-5D-Y-5L, were administered to children drawn from the population with cancer.EQ-5D-Y-3L and EQ-5D-Y-5L were evaluated in terms of feasibility, ceiling effects, redistributionproperties and differences in absolute and relative informativity. (3) Results: A total of 73 children(9.7 ± 2.3 years old) from the population with cancer participated in the study. No missing data in thenew EQ-5D-Y-5L were visualized, so the feasibility was acceptable. EQ-5D-Y-5L showed a low ceilingeffect in all dimensions with relative changes from EQ-5D-Y-3L to EQ-5D-Y-5L of between 15.3% and42.4% for the dimensions and 44.6% for the overall system. Compared to EQ-5D-Y-3L, EQ-5D-Y-5Lprovided a better distribution of the severity of the problem in the five levels of response. Theabsolute informativity (Shannon’s index) did not show statistically significant differences betweenEQ-5D-Y-3L and EQ-5D-Y-5L in all dimensions and the overall system. (4) Conclusions: EQ-5D-Y-5Lis feasible, presenting a low ceiling effect and high discriminative power PB MDPI SN 1661-7827 SN 1660-4601 (electrónico) YR 2022 FD 2022-09 LK https://hdl.handle.net/10272/21393 UL https://hdl.handle.net/10272/21393 LA eng NO Perez-Sousa, M. A., Olivares, P. R., & Gusi, N. (2022). Psychometric Properties of the Spanish Versions of EQ-5D-Y-3L and EQ-5D-Y-5L in Children with Cancer: A Comparative Study. In International Journal of Environmental Research and Public Health (Vol. 19, Issue 18, p. 11420). MDPI AG. https://doi.org/10.3390/ijerph191811420 NO This work was financially supported by the EuroQol Research Foundation. EuroQol ResearchFoundation by 1226-RA project. (The EuroQoL Research Foundation is a non-profit organization): Regional Association of Parents of Children with Cancer (ANDEX), Spain DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026