Early Mortality Risk Assessment in Preterm Neonates Using the Prognostic Nutritional Index.
BACKGROUND Preterm neonates are at high risk of morbidity and mortality due to physiological immaturity and susceptibility to complications. The prognostic nutritional index (PNI), calculated from serum albumin and lymphocyte counts, is an inflammation-based biomarker widely used to predict prognosis in adult diseases....