Between 1998 and 2003, researchers at NRN sites gathered information on 4,446 preterm infants born at the hospitals within the NRN.
Typically, health care providers consider the estimated gestational age of a preterm infant to help determine his or her possible outcomes. Researchers in the NRN have discovered that the inclusion of additional factors provides a more accurate way to estimate infant outcomes than using gestational age alone.
These outcome data are based on five factors, including:
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