Neonatal morbidity at discharge home and disability at two years of age by gestational age and birth weight.

*paIntraventricular hemorrhage grade 3 or more and/or cystic periventricular leukomalacia.bSymptomatic patent ductus arteriosus which required treatment.cIncluding: Retinopathy grade 3 or more, necrotizing enterocolitis, bronchopulmonary dysplasia, intraventricular hemorrhage grade 3 or more, cystic periventricular leukomalacia.dRetinopathy of prematurity grade 3 or more and/or bronchopulmonary dysplasia and/or severe brain injury.eCerebral palsy grade 1 and/or MDI 70–84 and/or PDI 70–84.fCerebral palsy grade 2–5, MDI and/or PDI