Journal
EUROPEAN GERIATRIC MEDICINE
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s41999-023-00850-6
Keywords
Sarcopenia; SARC-F; Screening; Cut-points; Obesity
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The study aimed to evaluate the impact of different SARC-F cut-points for identifying muscle weakness in an older clinical population. A total of 159 men and 311 women aged 56-98 completed the SARC-F questionnaire and had their maximum grip strength measured. Cut-points of ≥4, 3, and 2 were applied to SARC-F and tested for agreement with muscle weakness.
PurposeWe assessed the impact of applying different SARC-F cut-points for the identification of muscle weakness in an older clinical population.MethodsWe included 159 men and 311 women aged 56-98 years who had completed the SARC-F questionnaire and had their maximum grip strength measured at an Older People's Medicine Day Unit. We applied cut-points of & GE; 4, 3 and 2 to SARC-F and tested agreement with muscle weakness (grip strength < 27kg men, < 16kg women) in analyses stratified by sex and obesity status.ResultsPrevalence of muscle weakness was 86.8% and 82.6% in men and women, respectively. Sensitivity of the SARC-F increased at lower cut-points (e.g. 81% for & GE; 4 vs 97% for & GE; 2 in women). There was typically greater sensitivity among women than men and among those classified as obese vs non-obese.ConclusionsThese findings suggest that different cut-points may be required to optimise the utility of SARC-F for identifying muscle weakness in different patient sub-groups.
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