Association of late-preterm birth with asthma in young children: practice-based study

Neera K Goyal1, Alexander G Fiks, Scott A Lorch

  • 1MSCE, Children's Hospital of Philadelphia, 3535 Market St, Suite 1029, Philadelphia, PA 19104. lorch@email.chop.edu.

Pediatrics
|September 14, 2011
PubMed

Insights

Late-preterm birth is linked to increased asthma severity in young children. This includes higher rates of persistent asthma, medication use, and respiratory visits, highlighting a significant risk factor for early childhood health.

Area of Science:

  • Pediatrics
  • Neonatal Medicine
  • Respiratory Medicine

Background:

  • Asthma is a common chronic respiratory disease in childhood.
  • Preterm birth is a known risk factor for adverse health outcomes.
  • The impact of late-preterm birth on childhood asthma requires further investigation.

Purpose of the Study:

  • To evaluate the association between late-preterm birth and asthma severity in young children.
  • To assess the relationship between gestational age and asthma development and health service utilization.

Main Methods:

  • Retrospective cohort study using electronic health records (31 practices).
  • Included 7925 infants born between 34 to 42 weeks gestation (2007-2008), monitored to 18 months.
  • Multivariate logistic/Poisson models analyzed late-preterm (34-36 weeks) and low-normal (37-38 weeks) vs. term (39-42 weeks) gestation.

Main Results:

  • 8.3% of infants diagnosed with asthma by 18 months.
  • Late-preterm birth associated with increased persistent asthma diagnoses (aOR: 1.68), inhaled corticosteroid use (aOR: 1.66), and acute respiratory visits (IRR: 1.44).
  • Low-normal gestation linked to higher asthma diagnoses (aOR: 1.34) and inhaled corticosteroid use (aOR: 1.39).

Conclusions:

  • Late-preterm and low-normal gestational ages are potential risk factors for childhood asthma.
  • These gestational ages may also increase health service utilization in early childhood.
  • Findings suggest closer monitoring for asthma in infants born at these gestations.
Abstract

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