Psychometric properties of the Reintegration to Normal Living Index for sepsis survivors
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Published:2023-03-30
Issue:8
Volume:32
Page:2415-2423
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ISSN:0962-9343
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Container-title:Quality of Life Research
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language:en
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Short-container-title:Qual Life Res
Author:
Streich Kathleen, Hartog Christiane S.ORCID, Fleischmann-Struzek CarolinORCID, Rose Norman, Bichmann AnnaORCID, Kesselmeier MiriamORCID, Schiefenhövel Fridtjof, Schmieding MalteORCID, Born SebastianORCID
Abstract
Abstract
Purpose
Return to a normal state of living is a key patient-relevant outcome for sepsis survivors. The Reintegration to Normal Living Index (RNLI) assesses self-perceived participation in patients with chronic disease, but its psychometric properties have been analyzed neither for patients after sepsis nor in a German patient cohort. This study aims to analyze the psychometric properties of the German version of the RNLI in sepsis survivors.
Methods
In a prospective multicenter survey study, 287 sepsis survivors were interviewed 6 and 12 months after hospital discharge. Multiple-group categorical confirmatory factor analyses with three competing models were used to explore the factor structure of the RNLI. Concurrent validity was evaluated in relation to the EQ-5D-3L and the Barthel Index of Activities of Daily Living (ADL).
Results
Regarding structural validity, all models showed an acceptable model fit. Because of high correlation between the latent variables in the two-factor models (up to r = 0.969) and for reason of parsimony, we opted for the common factor model to analyze the concurrent validity. Our analyses showed moderate positive correlations between RNLI score and ADL score (r ≥ 0.630), EQ-5D-3L visual analogue scale (r ≥ 0.656) and EQ-5D-3L utility score (r ≥ 0.548). The reliability assessed by McDonald’s Omega was 0.94.
Conclusion
We found convincing evidence for good reliability, structural and concurrent validity of the RNLI in German sepsis survivors. We propose to use the RNLI in addition to generic health-related quality of life measures to assess the reintegration to normal living after sepsis.
Funder
German Innovations Fund of the Federal Joint Committee in Germany Friedrich-Schiller-Universität Jena
Publisher
Springer Science and Business Media LLC
Subject
Public Health, Environmental and Occupational Health
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