Predictive accuracy of plasma protein levels, CRIB, CRIB-II, SNAP-II, SNAPPE-II, birth weight (BW) and gestational age (GA) in identifying severe adverse outcome in the study population.

Result of receiver operating characteristic curves analyses and comparison in performances.*p value for DeLong test comparing AUCs**p value for Hosmer-Lemeshow goodness-of-fit test.(CRIB) Clinical Risk Index for Babies; (CRIB-II) revised Clinical Risk Index for Babies;(SNAP-II) Score for Neonatal Acute Physiology II; (SNAPPE-II) Score for Neonatal Acute Physiology Perinatal Extension II; (GA) Gestational Age; (BW) Birth Weight.