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Biochemical Measurement of Neonatal Hypoxia
Published on: August 24, 2011
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Neonatal mortality among outborn versus inborn babies
Wan-Hsuan Chen1, Chung-Hao Su1, Li-Chun Lin2
1Department of Pediatrics, Chiayi Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Chiayi, Taiwan.
Pediatrics and Neonatology
|May 10, 2021
Summary
Outborn babies had higher neonatal mortality rates than inborn babies, especially for those weighing 1000-2499g. Improving maternal transport to perinatal centers may enhance outcomes for these vulnerable infants.
Area of Science:
- Neonatal outcomes
- Perinatal care
- Public health
Background:
- Previous studies indicate higher survival rates for low birth weight infants born in tertiary perinatal centers (inborn) compared to those born elsewhere (outborn).
- The trends in the number and ratio of outborn infants, as well as their associated neonatal mortality, require ongoing examination.
Purpose of the Study:
- To investigate changes in the number and ratio of outborn infants over time.
- To compare neonatal mortality rates between inborn and outborn infants across different birth weight categories.
Main Methods:
- Utilized pooled data from the Taiwan Clinical Effectiveness Index (2011-2016).
- Analyzed outborn/inborn infant numbers and neonatal mortality rates.
- Stratified analysis by birth body weight.
Main Results:
- The number of outborn infants did not decrease annually.
- The ratio of outborn infants was lower in the 750-999g and ≥2500g birth weight groups.
- Significantly higher neonatal mortality rates were observed in outborn infants within the 1000-1499g, 2000-2499g, and ≥2500g birth weight categories compared to inborn infants.
Conclusions:
- Neonatal mortality rates remain higher for outborn infants in specific birth weight strata.
- Enhanced maternal transport systems promoting in utero transfers could potentially improve neonatal outcomes.

