[en] Introduction/Objective The Sarcopenia Quality of Life (SarQoL®) questionnaire is a patient-reported
outcome measure specific to sarcopenia.
The objective was to translate the SarQoL® questionnaire from English into Serbian and to investigate
its psychometric performance.
Methods A five-stage forward-backward methodology with pre-test was used to translate the questionnaire.
The validation sample in this study consisted of elderly, community-dwelling volunteers of both
sexes. Three methods were used to screen for and diagnose sarcopenia: the SARC-F questionnaire (high/
low risk), low handgrip strength [probable sarcopenia in the European Working Group on Sarcopenia
in Older People (EWGSOP2) algorithm], and the complete EWGSOP2 criteria. We investigated the questionnaire’s
discriminative power, internal consistency, construct validity, and floor and ceiling effects.
Results The SarQoL® questionnaire was translated into Serbian. The validation study included 699 participants.
In total, 200 participants were considered to be at high risk of sarcopenia by the SARC-F, 84
were diagnosed with low handgrip strength and 12 were confirmed to be sarcopenic. We did not find
significantly lower overall QoL scores using the EWGSOP2 criteria (60.31 vs. 64.60; p = 0.155). We did
find lower scores for the probably sarcopenic group (52.80 vs. 65.50; p < 0.001) and the high-risk group
(50.91 vs. 69.02; p < 0.001). The Cronbach’s α coefficient was 0.87, indicating a high internal consistency.
Construct validity was adequate, with 75% of hypotheses on expected correlations with the SF-36 and
EQ-5D questionnaires confirmed. No floor or ceiling effects were observed.
Conclusion We successfully translated the SarQoL® into Serbian, and showed that it is a valid tool for
measuring QoL in the community-dwelling elderly.
Disciplines :
Public health, health care sciences & services
Author, co-author :
Matijević, Radmila
Hrnjaković, Olivera
Đurđević, Aleksa
Geerinck, Anton ; Université de Liège - ULiège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Beaudart, Charlotte ; Université de Liège - ULiège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Bruyère, Olivier ; Université de Liège - ULiège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Dulić, Oliver
Harhaji, Vladimir
Rašović, Predrag
Language :
English
Title :
Translation and psychometric performance of the Serbian version of the Sarcopenia Quality of Life (SarQoL®) questionnaire
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