Introduction: nutritional screening (NS) is crucial for early detection of malnutrition (MN) and prediction of "nutritional risk".
Objectives: to establish the prevalence of hospital malnutrition by Subjective Global Assessment (SGA) and evaluate the agreement of NS tools and their ability to predict mortality (M), infectious (IC) and non-infectious complications, and prolonged stay (> 11 days).
Methods: a multicenter, prospective, observational study was conducted.