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Published on: November 20, 2015
Early neonatal morbidities in late preterm infants
Ashish Jaiswal1, Srinivas Murki, Pramod Gaddam
1Fernandez Hospital, Hyderabad, Andhra Pradesh 503 001, India.
Indian Pediatrics
|December 21, 2010
Summary
Late preterm infants face significantly higher risks for neonatal conditions like respiratory issues, jaundice, and sepsis compared to term infants. These risks increase with earlier gestational ages, highlighting the vulnerability of this population.
Area of Science:
- Neonatal Medicine
- Perinatal Health
- Pediatric Outcomes
Background:
- Late preterm infants (34-36 weeks gestation) represent a significant proportion of births.
- These infants are often perceived as similar to term infants, potentially leading to underestimation of their health risks.
- Early neonatal morbidity is a critical concern in the first week of life.
Purpose of the Study:
- To compare the incidence and types of early neonatal morbidity between late preterm infants and term infants.
- To identify specific health risks associated with late preterm birth within the first seven days of life.
Main Methods:
- A prospective cohort study design was employed.
- Inclusion criteria encompassed all liveborn late preterm infants (34 0/7 to 36 6/7 weeks) and term infants (37 0/7 to 41 6/7 weeks).
- Neonatal morbidity was defined as the presence of specific medical conditions requiring inpatient hospital observation, admission, or readmission within the first seven days post-delivery.
Main Results:
- The study included 363 late preterm infants and 2707 term infants.
- Late preterm infants exhibited a substantially higher rate of overall neonatal morbidity (70.8%) compared to term infants (29.1%).
- Significantly elevated risks were observed in late preterm infants for respiratory morbidity (OR: 7.5), need for ventilation (OR: 4.2), jaundice (OR: 3.4), hypoglycemia (OR: 4.5), and probable sepsis (OR: 3.2). Morbidity incidence increased progressively with decreasing gestational age from 40 weeks.
Conclusions:
- Late preterm infants are at a considerably higher risk for multiple early neonatal morbidities, including respiratory distress, need for respiratory support, jaundice, hypoglycemia, and sepsis, when compared to term infants.
- Gestational ages below 39 weeks were associated with significantly increased morbidity risk, with 40 weeks serving as the reference.
- These findings underscore the need for vigilant monitoring and tailored care strategies for late preterm infants.

