Usefulness of Six Diagnostic and Screening Measures for Undernutrition in Predicting Length of Hospital Stay: A Comparative Analysis

Despite assessing different dimensions of nutritional status, undernutrition by AA-CCM and PG-SGA, risk of undernutrition assessed by NRS-2002 and MUST, and low HGS and PA independently predict longer LOS in hospitalized patients. All these methodologies share a similar validity in predicting LOS.