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Published on: August 24, 2011
Risk factor analysis for late-onset neonatal hyperbilirubinemia in Taiwanese infants
Mi-Shu Huang1, Ming-Chih Lin, Hsiu-Hsi Chen
1Department of Pediatrics, Taichung Veterans General Hospital, Taichung, Taiwan.
Insights
Late-onset neonatal hyperbilirubinemia affects over 20% of newborns. Exclusive breastfeeding and significant weight loss in the first day are key risk factors, necessitating follow-up care.
Area of Science:
- Neonatal care
- Pediatric health
- Bilirubin metabolism
Background:
- Neonatal hyperbilirubinemia poses risks like kernicterus and hearing loss.
- Late-onset hyperbilirubinemia can develop after initial discharge.
- Early identification is crucial due to early infant discharge trends.
Purpose of the Study:
- To identify risk factors for late-onset neonatal hyperbilirubinemia.
- To inform strategies for preventing hyperbilirubinemia complications in newborns.
Main Methods:
- Analysis of data from 523 term/near-term infants.
- Defined late-onset hyperbilirubinemia as total bilirubin >15 mg/dL or phototherapy at 5-7 days.
- Used logistic regression to identify risk factors, excluding infants with early significant jaundice.
Main Results:
- 21.7% of infants (39/180) developed late-onset hyperbilirubinemia.
- Exclusive breastfeeding and less body weight loss on day 1 were significant risk factors.
- Early discharge was not associated with late-onset hyperbilirubinemia.
Conclusions:
- Late-onset hyperbilirubinemia occurred in 21.7% of infants by one week.
- Exclusive breastfeeding and minimal day 1 weight loss are significant risk factors.
- Routine follow-up is recommended, particularly for infants with identified risk factors.
Background:
Neonatal hyperbilirubinemia is a recognized health risk for newborns. It can cause kernicterus and hearing impairment. Certain groups of infants who do not have significant jaundice during the first few days of life develop hyperbilirubinemia later. Because early discharge is a worldwide trend, prompt identification of this group of infants is of paramount importance in preventing complications.
Methods:
The data used were derived from a medical center. A total of 523 term or near-term infants were enrolled in this study. All infants were scheduled for follow-up visits. In this study, late-onset neonatal hyperbitirubinemia was defined as a total bilirubin level greater than 15 mg/dL, or receiving phototherapy at 5-7 days. Newborns that had clinically significant jaundice within 96 hours of life were excluded from analysis. Univariate and multivariate logistic regressions were applied for statistical analysis.
Results:
One hundred and eighty infants were included for data analysis. Thirty-nine (21.7%) had late onset hyperbilirubinemia. Exclusive breast-feeding and less body weight loss during the 1st day of life were both significant risk factors for late onset hyperbilirubinemia. However, early discharge was not associated with late-onset hyperbilirubinemia.
Conclusion:
Thirty-nine (21.7%) infants develop late hyperbilirubinemia at the age of one week. Exclusive breast-feeding and less body weight loss were significant risk factors. Follow-up visits are recommended for all infants, especially for those who have these risk factors.
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