Abstract
Summary
Our study assessed the psychometric properties of the Romanian SarQoL® questionnaire. Normal distribution and high internal consistency were found. Sarcopenic subjects reported a reduced global quality of life compared to non-sarcopenics. The Romanian version of the SarQoL® questionnaire, conceptually and literally equivalent with the source instrument, is qualified in terms of psychometric properties.
Purpose/introduction
We have recently provided a translated and culturally tailored version of the first quality of life (QoL) questionnaire specific for sarcopenia, the SarQoL®, in Romanian language. The aim of this study was to assess the psychometric performances of the translated questionnaire.
Methods
A total of 100 volunteers were enrolled in the study. Sarcopenia was diagnosed according to the algorithm proposed by the European Working Group on Sarcopenia in Older People (EWGSOP). To test the psychometric performance, discriminative power, internal consistency, floor and ceiling effects, and construct validity analyses were made. We assessed the correlation between SarQoL® and similar/different domains of other two QoL questionnaires.
Results
Sarcopenic subjects reported a reduced global QoL compared to non-sarcopenic individuals. Significantly (p = 0.018) higher total scores for non-sarcopenic subjects compared to those of sarcopenics indicate a good discriminative power of the Romanian questionnaire. Sarcopenic individuals had significantly lower scores in almost all domains. The Cronbach’s alpha value of 0.946 indicates a high internal consistency. No floor or ceiling effects were found. A strong positive correlation was also found between similar domain scores from SF-36 and EQ-5D questionnaires with the Total SarQoL® score. Moreover, lower scores of quality of life have been shown to be significantly associated with lower muscle strength, in univariate analyses, and lower gait speed, both in univariate and multivariate analyses.
Conclusions
Our results indicate that the Romanian version of the SarQoL® questionnaire, qualified in terms of psychometric properties, could be a useful tool to assess the sarcopenia-related QoL among frail Romanian individuals.
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Change history
17 September 2018
The name and surname of the authors have been inverted. The correct order would be like this: Andrea Ildiko Gasparik, Gabriela Mihai, Charlotte Beaudart, Olivier Bruyere, Raluca-Monica Pop, Jean-Yves Reginster, Ionela Maria Pascanu.
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All procedures involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
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Ildiko, G.A., Gabriela, M., Charlotte, B. et al. Psychometric performance of the Romanian version of the SarQoL®, a health-related quality of life questionnaire for sarcopenia. Arch Osteoporos 12, 103 (2017). https://doi.org/10.1007/s11657-017-0397-1
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DOI: https://doi.org/10.1007/s11657-017-0397-1