RT Journal Article SR Electronic T1 Serum bilirubin levels in breast- and formula-fed infants in the first 5 days of life JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 985 OP 989 VO 127 IS 10 A1 S. Saigal A1 O. Lunyk A1 K. J. Bennett A1 M. C. Patterson YR 1982 UL http://www.cmaj.ca/content/127/10/985.abstract AB A prospective study was conducted in a level II maternity unit to investigate the incidence of hyperbilirubinemia in healthy, term, breast-fed and formula-fed infants. Serum bilirubin levels were determined for 176 breast-red and 164 formula-fed infants in cord blood and on days 1, 2, 3 and 5 after birth. The mean total bilirubin levels were significantly higher on each postnatal day in the breast-fed infants, as was the proportion of infants with peak levels above 12 mg/dl (205 mumol/l; 28% v. 6%). The breast-fed infants also had significantly higher proportional weight losses on each postnatal day than the formula-fed infants. However, there was no correlation between the cumulative weight loss on day 3 and bilirubin levels on the same day with either feeding regimen. None of the infants required an exchange transfusion or prolonged care in hospital for hyperbilirubinemia.