Abstract
Healthy term newborn feeding choice at the Maternity Ward may determine exclusive breastfeeding (EB) duration.
Objective: Determine prospectively if early introduction of breast milk substitutes (BMS) or other liquids in healthy term newborns is associated to a reduction of EB incidence at 1 month of age.
Methods: Concurrent cohort study of 211 healthy term neonates born in Hospital Clínico Universidad Católica during October 2007-June 2007, 108 non-supplemented and 103 supplemented with milk formula or dextrose 5% during the time they stayed at the Maternity Ward. Crude and adjusted risk of EB cessation between both groups was estimated at 1 month of age.
Results: One month after birth, 40/100 (40.0%) of supplemented newborns and 26/101 (25.7%) non-supplemented newborns were not receiving exclusive breastfeeding (crude RR =1.55 (CI95% 1.03-2.34)). Adjusted by maternal characteristics (age, education, breastfeeding experience, education in breastfeeding, EB time projection and paternal support) and newborn characteristics (type of delivery and birth weight), EB cessation risk was 55% higher in supplemented neonates (adjusted RR = 1.55, CI95% 1.01-2.35).
Conclusion: Early supplementation in healthy term newborns with BMS is associated to a higher risk of EB cessation at 1 month of age.
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