Purpose

This is a registry of moderate preterm infants, born alive at 29-33 weeks gestational age, in NICHD Neonatal Research Network (NRN) centers. The registry collects observational baseline data on both mothers and infants, and the therapies used and outcomes of the infants. The information collected is not specific to a disease or treatment (i.e., it is "generic"). Data are analyzed to find associations and trends between baseline information, treatments, and infant outcome, and to develop future NRN trials.