Vermont Oxford Network maintains a database for live born infants <=1500 grams or <=29 weeks gestational age who are born at participating hospitals or admitted to them within 28 days of birth, regardless of where in the hospital the infant receives care.

The Database 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. The data collected includes information on:

• Demographics of mother and infant
• Mother's health, labor and delivery
• Infant's health upon admission, procedures and interventions, and medical outcomes

These data are used to: provide member centers with reporting for use in quality improvement; examine associations between baseline characteristics, treatments, and outcomes; and track trends in incidences of disease and effectiveness of therapies.

Inclusion Criteria:

• Any infant who is born alive and whose birth weight is <=1500 grams or <=29 weeks 6 days gestational age (inclusive) who is born at or admitted to a Vermont Oxford Network member center within 28 days of life without having first gone home, regardless of the where the infant receives care

Exclusion Criteria:

• Stillborn infants
• Infants discharged home prior to admission to a member center
• Infants admitted after 28 days

Infants who are <=1500 grams birth weight or <=29 weeks gestational age and who are admitted to Vermont Oxford Network member centers within 28 days of birth without first going home