Comparison of diagnostic accuracy of the SARC‐F, SARC‐CalF, and Ishii tests for diagnosis of sarcopenia in hospitalized older patients: A cross‐sectional study

SARC-CalF demonstrates the highest performance in terms of sensitivity and specificity compared with the other two tests, making it a valuable tool for detecting sarcopenia in hospital settings. In contrast, the Ishii test exhibits high sensitivity but low specificity within this population. Based on our results, we found that SARC-CalF can be used as a simple, effective test for identifying sarcopenia in older patients in the hospital setting.