The role of fat-free mass index in evaluating protein-energy wasting in maintenance hemodialysis patients: a multicenter cross-sectional study

Objective Protein-energy wasting (PEW) is prevalent in maintenance hemodialysis (MHD) patients and associated with poor outcomes. This study aimed to evaluate the agreement of fat-free mass index (FFMI) measured by bioelectrical impedance analysis (BIA) with conventional nutritional tools and to explore its potential value as a supplementary screening measure for PEW in MHD patients. Methods In this multicenter cross-sectional study, 272 MHD patients were enrolled between April 2016 and October