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Aim: To compare the performance of the SARC-F and SARCCalf questionnaires in sarcopenia screening and their relationship with clinical and sociodemographic aspects of older adults., Methods: Analytical cross-sectional study carried out with 739 elderly people in the community. Clinical, sociodemographic, anthropometric data and screening for signs suggestive of sarcopenia were obtained using the SARC-F and SARCCalf., Results: Evaluation by method showed a difference in the proportion of positive results for the SARC-F regarding female sex (71.7; p = 0.001), among older adults who did not have a partner (49.7; p < 0.001), and osteoarticular diseases (13.4; p < 0.001). On the other hand, the SARCCalf identified a higher proportion of positive results among older adults at risk of malnutrition (12.2; p < 0.001)., Conclusion: The performance of the instruments varied according to the clinical and sociodemographic characteristics of the population, and it is up to professionals to consider these aspects when using them., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)