[en] OBJECTIVES: To translate the Sarcopenia Quality of Life (SarQoL®) questionnaire into Dutch and to evaluate the psychometric properties of the Dutch version of this questionnaire. METHODS: The translation was carried out using a 5-step process, with 2 initial translations, a merging of these 2 translations, 2 backwards translations, an expert committee review and a pretest of the questionnaire. Sarcopenia was diagnosed with the EWGSOP algorithm. The validation consisted of an examination of the discriminative power, internal consistency, construct validity, test-retest reliability and floor and ceiling effects. RESULTS: No significant problems were encountered during the translation process. A total of 92 subjects were included in the validation part of this study, 30 of which were sarcopenic. Discriminative power between sarcopenic and nonsarcopenic subjects was found for all domains and the Overall score (median overall QoL score: 67.15 vs 79.72; p=0.003). High internal consistency was found (Cronbach’s alpha=0.883), as well as good construct validity with 75% of hypotheses confirmed. Test-retest reliability was excellent (ICC=0.976; 95% CI=0.947-0.989) and no floor or ceiling effects were observed. CONCLUSION: The Dutch version of the SarQoL® questionnaire is ready for use in clinical and research applications.
Disciplines :
Public health, health care sciences & services
Author, co-author :
Geerinck, Anton ; Université de Liège - ULiège > Département des sciences de la santé publique > Epidémiologie clinique
Scheppers, Annelies; Vrije Universiteit Brussel - VUB > Frailty in Ageing Research Department
Beaudart, Charlotte ; Université de Liège - ULiège > Département des sciences de la santé publique > Epidémiologie clinique
Bruyère, Olivier ; Université de Liège - ULiège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Vandenbussche, Wim; Vrije Universiteit Brussel - VUB > Centre for Linguistic Research
Bautmans, René; Vrije Universiteit Brussel - VUB > Gerontology Department
Delye, Samuel ; Université de Liège - ULiège > Département de Psychologie > Psychologie de la sénescence et du vieillissement
Bautmans, Ivan; Vrije Universiteit Brussel - VUB > Frailty in Ageing Research Department
Language :
English
Title :
Translation and validation of the Dutch SarQoL, a quality of life questionnaire specific to sarcopenia
Publication date :
December 2018
Journal title :
Journal of Musculoskeletal and Neuronal Interactions
eISSN :
1108-7161
Publisher :
The International Society of Musculoskeletal and Neuronal Interactions, Greece
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