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Health-Related Quality of Life in Patients with Spinocerebellar Ataxia: a Validation Study of the EQ-5D-3L.

Health-Related Quality of Life in Patients with Spinocerebellar Ataxia: a Validation Study of the EQ-5D-3L.

Authors :
Buchholz, Maresa
Weber, Niklas
Rädke, Anika
Faber, Jennifer
Schmitz-Hübsch, Tanja
Jacobi, Heike
Xie, Feng
Klockgether, Thomas
Michalowsky, Bernhard
du Montcel, Sophie Tezenas
Bauer, Peter
Giunti, Paola
Cook, Arron
Labrum, Robyn
Parkinson, Michael H.
Durr, Alexandra
Brice, Alexis
Charles, Perrine
Marelli, Cecilia
Mariotti, Caterina
Source :
Cerebellum. Jun2024, Vol. 23 Issue 3, p1020-1030. 11p.
Publication Year :
2024

Abstract

Although health-related quality of life (HRQoL) has developed into a crucial outcome parameter in clinical research, evidence of the EQ-5D-3L validation performance is lacking in patients with spinocerebellar ataxia (SCA) types 1, 2, 3, and 6. The objective of this study is to assess the acceptability, validity, reliability, and responsiveness of the EQ-5D-3L. For n = 842 predominantly European SCA patients of two longitudinal cohort studies, the EQ-5D-3L, PHQ-9 (Patient Health Questionnaire), and ataxia-specific clinical assessments (SARA: Scale for Assessment and Rating of Ataxia; ADL: activities of daily living as part of Friedreich's Ataxia Rating Scale; INAS: Inventory of Non-Ataxia Signs) were assessed at baseline and multiple annual follow-ups. The EQ-5D-3L was evaluated regarding acceptability, distribution properties, convergent and known-groups validity, test-retest reliability, and effect size measures to analyze health changes. The non-item response was low (EQ-5D-3L index: 0.8%; EQ-VAS: 3.4%). Ceiling effects occurred in 9.9% (EQ-5D-3L) and 3.0% (EQ-VAS) with a mean EQ-5D-3L index of 0.65 ± 0.21. In total, convergent validity showed moderate to strong Spearman's rho (rs > 0.3) coefficients comparing EQ-5D-3L and EQ-VAS with PHQ-9, SARA, ADL, and INAS. EQ-5D-3L could discriminate between groups of age, SARA, ADL, and INAS. Intra-class correlation coefficients (EQ-5D-3LICC: 0.95/EQ-VASICC: 0.88) and Kappa statistics (range 0.44 to 0.93 for EQ-5D-3L items) indicated tolerable reliability. EQ-5D-3L shows small (effect size < 0.3) to moderate (effect size 0.3–0.59) health changes regarding ataxia severity. The analysis confirms an acceptable, reliable, valid, and responsive recommended EQ-5D-3L in SCA patients, measuring the HRQoL adequately, besides well-established clinical instruments. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14734222
Volume :
23
Issue :
3
Database :
Academic Search Index
Journal :
Cerebellum
Publication Type :
Academic Journal
Accession number :
177310641
Full Text :
https://doi.org/10.1007/s12311-023-01597-3