Comparing EWGSOP2 and FNIH Sarcopenia Definitions: Agreement and 3-Year Survival Prognostic Value in Older Hospitalized Adults: The GLISTEN Study

Background: Sarcopenia is common among older hospitalized adults but estimates vary according to definitions used. Aims of this study were to investigate the agreement between the European Working Group on Sarcopenia in Older People (EWGSOP2) and the Foundation for the National Institutes of Health (FNIH) Sarcopenia Project criteria and to compare the predictive value of both definitions for 3-year mortality. Methods: Analysis was performed on 610 older hospitalized patients enrolled in the GLISTEN study. Participants were categorized as sarcopenic or not sarcopenic according to EWGSOP2 and FNIH definitions separately and in a four-group variable (neither criterion positive, only EWGSOP2, only FNIH, and both criteria).