A Clinical and Statistical Observation on the Idiopathic Neonatal Hyperbilirubinemia

ABSTRACT

Clinical and statistical observations were performed on 97 newborn infants who were admitted to newborn nursery of St. Paul's Hospital from September, 1978 to August, 1979 with the diagnosis of idiopathic neontal hyperbilirubinemia and the following results were obtained. 1. The highest monthly incidence was seen in March with 19 cases(19.2%). 2. The peak gestational age and birth weight were 40 weeks(33.0%) and 3,001-3,500 gm(38.2%), respectively. 3. In majority of cases appearence of jaundice was seen between 2 and 4 days. The peak value was reached between 3 and 8 days in premature infants and between 3 and 5 days in term infants. 4. The peak serum bilirubin levels in most of premature infants were 12.1-16.0mg% and term infants were 14.1-18.0mg%. 5. Apgar score at 1 minute and 5 minutes in majority of newborn infants were 7-10. 6. Total number o cases who were received exchange transfusion were 5 (5.2%).