Psychometric properties of the Spanish version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30)
Calderón Garrido, Caterina (Universitat de Barcelona. Departament de Psicologia Clínica i Psicobiologia)
Ferrando Piera, Pere Joan (Universitat Rovira i Virgili. Departament de Psicologia)
Lorenzo-Seva, Urbano (Universitat Rovira i Virgili. Departament de Psicologia)
Ferreira García, Estrella (Universitat de Barcelona. Departament de Psicologia Clínica i Psicobiologia)
Lee, Eun Mi (Universitat de Barcelona. Departament de Psicologia Clínica i Psicobiologia)
Oporto-Alonso, Marta (Universitat Abat Oliba. Departament de Psicologia)
Obispo, Berta (Hospital Universitario Infanta Leonor)
Mihic Góngora, Luka (Hospital Universitario Central de Asturias)
Rodríguez-González, Adán (Hospital Universitario Central of Asturias)
Jimenez-Fonseca, Paula (Hospital Universitario Central of Asturias)

Data:	2021
Descripció:	11 pàg.
Resum:	Purpose: The aim of this study was to analyze the internal structure of the EORTC QLQ-C30, to examine the validity and normative data for cancer patients. MethodExploratory and Confirmatory factor analyses were conducted to explore the scale's dimensionality and test for strong measurement invariance across sex and tumor site. All the analyses were based on a multicenter cohort of 931 patients who completed the Brief Symptom Inventory (BSI-18) and the EORTC QLQ-C30. ResultsOur findings indicate that the EORTC QLQ-C30 has acceptable psychometric properties and an internal structure that is well accounted for a bifactor model: a general factor that evaluates quality of life and a group factor that would analyze physical health that would be defined by physical function, role function, and fatigue. The result of the multi-group CFA revealed a strong invariance according to sex, tumor, and over time. Reliability of the EORTC exceeding 0. 86 and the simple sum of the items of the scale was a good indicator of oncology patients' quality of life. Both factors correlate closely with depression, anxiety, and psychological distress and are sensitive to change, especially the quality of life, with a significant decrease in the post-test. ConclusionThe Spanish version of the EORTC QLQ-C30 proved to be a valid, reliable instrument to appraise quality of life in cancer patients. The normative data collected from this study may be useful for the early detection of initial symptoms of deterioration of quality of life in oncology patients.
Nota:	Altres ajuts: Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by the FSEOM-Onvida 2015 Grant for Projects on Long Survivors and Quality of Life.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Quality of life ; Psychological distress ; Oncology ; Psychometric ; Invariance
Publicat a:	Quality of life research, Vol.31, Num.6 (2022) , p.1859-1869, ISSN 1573-2649

DOI: 10.1007/s11136-021-03068-w
PMID: 34928470
PMID: PMC9098585

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