Journal of the American Medical Directors Association
Original StudyGerman Version of SARC-F: Translation, Adaption, and Validation
Section snippets
Methods
The validation process was organized in 2 phases as suggested by the EUGMS SIG methodological report.8 In the first phase, the German translation and cultural adaptation was conducted. In the second phase, the clinical validation was performed.
First Phase (Translation and Cultural Adaption)
The first 5 steps of the translation were performed without difficulties. Step 6 resulted in some modifications. The item “strength” was evaluated by asking for difficulties lifting or carrying 10 lb. The weight specification in pounds (10 lb) was converted into kilograms (5 kg). A footnote "corresponds to carrying a water box with two hands or half a box with one hand" was introduced as an example for 5 kg. For question 5 of the SARC-F, the footnote "in the last 12 months" was added in order
Discussion
The translated and culturally adapted version of the SARC-F for the German language showed excellent inter-rater reliability and good test-retest reliability. The internal consistency was acceptable. As already shown in other language validation studies of the SARC-F, the sensitivity of the German version for sarcopenia was low, and the NPV was high. Therefore, the German version of the SARC-F might not be a useful tool for screening sarcopenia. However, for detecting patients with probable
Conclusions and Implications
The German version of the SARC-F shows good reliability and internal consistency. Because of a low sensitivity for detecting sarcopenia but a higher sensitivity for identifying probable sarcopenia, the German version of the SARC-F is a suitable tool for case finding of probable sarcopenia in community-dwelling older adults.
Acknowledgments
Thanks to all study participants.
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M.D. and U.F. contributed equally to the study.
The authors declare no conflicts of interest.