Summary of study methods
| Setting | Tertiary-level NICUs in North East England |
| Population | Preterm infants <33 weeks or with a birth weight <1500 g admitted in the first 7 days of life |
| Intervention | Use of DHM to make up any shortfall in MOM until 36 weeks’ corrected age (or discharge if this comes earlier) |
| Control | Use of DHM to make up any shortfall in MOM until full feeds are achieved (tolerating 150 mL/kg/day for 48 hours) |
| Design | Pilot randomised open-label controlled trial |
| Time frame | Until 36 weeks’ corrected gestation or hospital discharge if earlier |
DHM, donor human milk; MOM, mother’s own milk; NICUs, neonatal intensive care units.