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Incidence of hyperbilirubinemia in breast- vs. formula-fed infants
Insights
Breast-feeding is linked to higher bilirubin levels in newborns. This study found breast-fed infants had increased incidence of hyperbilirubinemia (jaundice) compared to formula-fed infants.
Area of Science:
- Neonatal Medicine
- Pediatrics
- Clinical Nutrition
Background:
- Hyperbilirubinemia, a common condition in newborns, requires monitoring to prevent complications.
- Understanding risk factors for neonatal hyperbilirubinemia is crucial for timely intervention.
- Breastfeeding is widely encouraged, but potential associations with neonatal health outcomes warrant investigation.
Purpose of the Study:
- To investigate the relationship between feeding methods and the development of hyperbilirubinemia in full-term infants.
- To identify predictive variables associated with elevated bilirubin levels in the neonatal period.
Main Methods:
- Retrospective analysis of 233 full-term infants' health records.
- Utilized step-wise multiple regression to analyze eight potential risk factors.
- Compared peak bilirubin levels between breast-fed and formula-fed infants.
Main Results:
- Fifteen percent (15%) of infants developed peak bilirubin levels > 12 mg/dL.
- Breast-feeding was the most significant predictor for hyperbilirubinemia > 12 mg/dL (p < 0.02).
- Breast-fed infants showed a significantly higher incidence of hyperbilirubinemia > 15 mg/dL (12% vs 2%, p < 0.002).
Conclusions:
- Breast-feeding is significantly associated with an increased incidence of neonatal hyperbilirubinemia.
- While breast-feeding offers numerous benefits, close monitoring for jaundice is essential in breast-fed neonates.
- No correlation was found between weight loss and hyperbilirubinemia in breast-fed infants in this cohort.
Abstract:
A retrospective study of 233 consecutively born full-term infants was performed to determine the effect of several variables on the development of hyperbilirubinemia. Thirty-five (15%) of the infants developed peak bilirubin levels greater than 12 mg/dl in the first week of life. Step-wise multiple regression analysis revealed that breast-feeding was the most predictive of a group of eight variables for the development of hyperbilirubinemia greater than 12 mg/dl. The correlation between type of feeding and hyperbilirubinemia was significant (p less than 0.02). None of the other factors evaluated was significantly associated with hyperbilirubinemia. Breast-fed infants also were found to have a significantly higher incidence of hyperbilirubinemia greater than 15 mg/dl; 12 of 101 (12%) infants compared with 2 of 117 (2%) formula-fed infants (p less than 0.002). This group of infants accounted for the increased incidence of hyperbilirubinemia greater than 12 mg/dl in breast-fed infants. There was no significant correlation between weight loss and development of hyperbilirubinemia in the breast-fed infants.