Neonatal morbidity in singleton late preterm infants compared with full-term infants

Area of Science:

• Neonatal Medicine
• Pediatrics
• Public Health

Background:

• Late preterm infants, born between 34 and 36 weeks of gestation, represent a growing population with unique health considerations.
• Existing research suggests potential vulnerabilities in this group compared to full-term infants, necessitating further investigation.

Purpose of the Study:

• To test the hypothesis that singleton late preterm infants have a higher incidence of short-term morbidity and longer hospitalizations than full-term infants.
• To quantify the differences in specific morbidities and hospital stay duration between these two infant groups.

Main Methods:

• Retrospective, multicentre study analyzing electronic health data from five Swiss hospitals.
• Comparison of short-term outcomes between 530 late preterm infants and 1686 full-term infants.
• Exclusion of multiple gestations, fetal malformations, maternal drug use, and incomplete data; results corrected for gender imbalance.

Main Results:

• Late preterm infants showed significantly higher rates of respiratory distress (34.7% vs. 4.6%), hyperbilirubinemia (47.7% vs. 3.4%), hypoglycemia (14.3% vs. 0.6%), and hypothermia (2.5% vs. 0.6%).
• Hospitalization duration was longer for late preterm infants (mean 9.9 days vs. 5.2 days).
• The risk of at least one complication was 7.6 times higher in late preterm infants (70.8%) compared to full-term infants (9.3%).

Conclusions:

• Singleton late preterm infants exhibit a considerably higher rate of medical complications and prolonged hospital stays than matched full-term infants.
• These findings indicate a greater need for medical and financial resources for the care of late preterm infants.
• The study underscores the importance of targeted monitoring and resource allocation for late preterm neonates.