Psychometric evaluation of the German version of the Recovering Quality of Life (ReQoL) measures in patients with affective disorders

Thomas Grochtdreis (), Hans-Helmut König, Anju Devianee Keetharuth, Jürgen Gallinat, Alexander Konnopka, Holger Schulz, Martin Lambert, Anne Karow and Judith Dams
Additional contact information
Thomas Grochtdreis: University Medical Center Hamburg-Eppendorf
Hans-Helmut König: University Medical Center Hamburg-Eppendorf
Anju Devianee Keetharuth: The University of Sheffield
Jürgen Gallinat: University Medical Center Hamburg-Eppendorf
Alexander Konnopka: University Medical Center Hamburg-Eppendorf
Holger Schulz: University Medical Center Hamburg-Eppendorf
Martin Lambert: University Medical Center Hamburg-Eppendorf
Anne Karow: University Medical Center Hamburg-Eppendorf
Judith Dams: University Medical Center Hamburg-Eppendorf

The European Journal of Health Economics, 2023, vol. 24, issue 4, No 3, 499-512

Abstract: Abstract Background The generic self-reported Recovering Quality of Life (ReQoL) measures were developed for measuring recovery-focused health-related quality of life (HrQoL) in persons with mental health conditions. The aim of this study was to assess the psychometric properties of the German version of the ReQoL measures in patients with affective disorders in Germany. Methods Data from a patient sub-sample in a randomized controlled trial have been used (N = 393). The internal consistency and the test–retest reliability of the ReQoL measures were assessed using Cronbach’s Alpha and the intra-class correlation coefficient (ICC). The concurrent validity and the known-group validity of the ReQoL measures were assessed using Pearson’s Correlation coefficient and Cohen’s d. The responsiveness was assessed using Glass' Δ and the standardized response mean (SRM). Results The reliability among the items of the ReQoL-20 was overall excellent. The ICC of the ReQoL-20 was r = 0.70, indicating moderate test–retest reliability. The concurrent validity of the ReQoL-20 with the clinical measure PHQ-9 was strong with a correlation coefficient of r = − 0.76. The known-group validity of the ReQoL-20 using PHQ-9 cut-off points was large with an effect size of d = 1.63. The ReQoL measures were sensitive to treatment response and remission of symptoms measured by the PHQ-9 with large effect sizes/SRM. Discussion The psychometric properties of the ReQoL measures for the assessment of patients with affective disorders were overall good. With the ReQoL, valid and reliable measures for the assessment of recovery-focused HrQoL for persons with affective disorders are available in German language.

Keywords: Reliability; Validity; Responsiveness; EQ-5D; SF6D; Health-related quality of life; Mood disorders; Germany (search for similar items in EconPapers)
JEL-codes: I10 I30 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s10198-022-01489-z Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:eujhec:v:24:y:2023:i:4:d:10.1007_s10198-022-01489-z

Ordering information: This journal article can be ordered from
http://www.springer. ... cs/journal/10198/PS2

DOI: 10.1007/s10198-022-01489-z

Access Statistics for this article

The European Journal of Health Economics is currently edited by J.-M.G.v.d. Schulenburg

More articles in The European Journal of Health Economics from Springer, Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ) Contact information at EDIRC.
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().