Data collection
NEC, EOS, ROP, MBDP, brain injury, intraventricular hemorrhage, patent ductus arteriosus, RDS, BPD, sepsis
METABOLIC BONE DISEASE OF PREMATURITY, INTRAVENTRICULAR HEMORRHAGE, RESPIRATORY DISTRESS SYNDROME, SEPSIS, COMPLICATIONS, RETINOPATHY OF PREMATURITY
Collected data included general information on preterm infants and clinical data on early complications in preterm infants, including respiratory distress syndrome (RDS), hemodynamically significant patent ductus arteriosus (hsPDA), early-onset sepsis (EOS), stage II or higher NEC, surgically treated NEC, LOS, brain injury (including intraventricular hemorrhage and periventricular white matter softening), retinopathy of prematurity (ROP), moderate and severe BPD, metabolic bone disease of prematurity (MBDP ), EUGR, nutritional information related to the intake of amino acids and fat emulsions, duration of PN, time to initiate enteral feeding, breastfeeding, feeding intolerance (FI), time to reach total enteral nutrition and the number of days of total calorie intaked up to 110 kcal/kg/day.