The goal of this study is to determine the long-term outcomes associated with an economic intervention that was provided to encourage mother's of very premature infants to provide mother's own milk. This study will follow children after they are discharged from the Neonatal Intensive Care Unit, where their mothers received the economic intervention, out to age 2 years. This study will examine childhood outcomes at 2 years of age based on which group the mothers had been randomized into. This study will also determine the relationship between the total duration mother's own milk was received during the first year of life and early childhood outcomes at age 2 years in infants that were born very premature.

Inclusion Criteria:

• Completion of the ReDiMOM RCT
• survival of infant to NICU discharge

Exclusion Criteria:

• Mother has participated in this study with a previous pregnancy
• infant is enrolled in another study that impacts neurodevelopment or adiposity
• in the neonatologist's opinion the infant is unlikely to survive
• the mother is unable or unwilling to provide consent

Participants were cared for in the Rush NICU in Chicago, IL and participated in the ReDiMOM randomized controlled trial.

de-identified and aggregated participant level data that underlie the results reported in the publication

An independent review committee and the principal investigators will review requests for data no sooner than 2 to 5 years after publication of final results.