CONTEXT: Studies have suggested that human milk feeding decreases the incidence of retinopathy of prematurity (ROP); however, conflicting results have been reported.
OBJECTIVE:The aim of this meta-analysis was to pool currently available data on incidence of ROP in infants fed human milk versus formula.DATA SOURCES: Medline, PubMed, and EBSCO were searched for articles published through February 2015.STUDY SELECTION: Longitudinal studies comparing the incidence of ROP in infants who were fed human milk and formula were selected. Studies involving donor milk were not included.DATA EXTRACTION: Two independent reviewers conducted the searches and extracted data. Metaanalysis used odds ratios (ORs), and subgroup analyses were performed.RESULTS: Five studies with 2208 preterm infants were included. Searches including various proportions of human milk versus formula, any-stage ROP, and severe ROP were defined to pool data for analyses. LIMITATIONS: Prospective randomized studies being impossible because of ethical issues, we chose observational studies for analysis. A few studies involving subgroup analyses presented high heterogeneity.CONCLUSIONS: Based on current limited evidence, in very preterm newborns, human milk feeding potentially plays a protective role in preventing any-stage ROP and severe ROP.