Abstract
Purpose
Impaired health-related quality of life (HRQoL) is associated with poor health outcomes in chronic obstructive pulmonary disease (COPD). The aim of this study was to determine health utilities in patients with COPD and to identify the variables with the greatest impact.
Methods
This is a pooled analysis of data from 4 observational studies performed in stable COPD patients. Evaluation of patient HRQoL utilities was performed using the Spanish version of the self-administered EuroQoL 5 Dimensions (EQ-5D) questionnaire. EQ-5D utilities were described and compared according to several markers of disease severity.
Results
6198 patients reported a mean (SD) EQ-5D index of 0.67 (0.26). A linear dose response relationship between EQ-5D utility and modified Medical Research Council (mMRC) score, forced expiratory volume in one 1 s (% predicted), COPD hospital admissions in the previous year, self-reported daily walking time, Charlson index, body mass index, obstruction, dyspnoea and exacerbation (BODEx) index, COPD assessment test (CAT), hospital anxiety and depression scale was observed (p for trend < 0.001). In multivariate analysis, patients reporting lower utility values were those with more dyspnoea, more comorbidities, using long-term oxygen therapy, with previous hospitalisations due to a COPD exacerbation and higher (worse) CAT score.
Conclusion
HRQoL measures such as EQ-5D can assist clinicians to understand the impact of respiratory disease on COPD patients.
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Acknowledgements
The FyCEPOC and INSEPOC studies were funded by Laboratorios Esteve S.A (Barcelona, Spain). The NEREA study has been funded by an unrestricted grant from J. Uriach y Compañía S.A. The DEPREPOC study has been funded by Grupo Ferrer (Barcelona, Spain). There was no involvement of funding organisations in the analysis and interpretation of data; in the writing of the report; nor in the decision to submit the article for publication.
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Marc Miravitlles has received speaker or consulting fees from (in alphabetical order) AstraZeneca, Bial, Boehringer Ingelheim, Chiesi, Cipla, CSL Behring, Laboratorios Esteve, Gebro Pharma, GlaxoSmithKline, Grifols, Menarini, Mereo Biopharma, Novartis, pH Pharma, Rovi, TEVA, Verona Pharma and Zambon, and research grants from GlaxoSmithKline and Grifols, unrelated to this manuscript. The other authors have no conflicts of interest to disclose.
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All procedures performed in this study are in accordance with ethical standards of the Institutional Review Board and with the Declaration of Helsinki. All participants within their respective cohorts gave their informed written consent to participate in the original study, and each study was approved by the Research and Ethics Committee of the Hospital Clinic (Barcelona, Spain).
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Esquinas, C., Ramon, M.A., Nuñez, A. et al. Correlation between disease severity factors and EQ-5D utilities in chronic obstructive pulmonary disease. Qual Life Res 29, 607–617 (2020). https://doi.org/10.1007/s11136-019-02340-4
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DOI: https://doi.org/10.1007/s11136-019-02340-4