Association between maternal sociodemographic characteristics and exclusive mother's own milk feeding in preterm infants: a cohort study using data from the National Neonatal Research Database.

Objective: To ascertain the sociodemographic and geographical determinants of exclusive and no mother's own milk (MOM) feeding for infants <34 weeks' gestational age (GA) in England and Wales.

Study Design: Retrospective cohort study using the National Neonatal Research Database (2016-2022). We calculated unadjusted and mutually adjusted ORs for exclusive and no MOM feeding throughout an infant's neonatal stay, by maternal age group, ethnicity and deprivation quintile.