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Executive function in very preterm children at early school age

Cornelieke S H Aarnoudse-Moens1, Diana P Smidts, Jaap Oosterlaan

  • 1Department of Pediatrics, Division of Neonatology, Erasmus University Medical Centre Sophia Children's Hospital Rotterdam, Rotterdam, The Netherlands. c.moens@erasmusmc.nl

Journal of Abnormal Child Psychology
|June 3, 2009
PubMed

Insights

Very preterm birth is linked to executive function impairments in school-aged children, independent of IQ. Gestational age and maternal education are key risk factors for these executive function (EF) deficits.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatrics

Background:

  • Very preterm birth (gestation ≤ 30 weeks) poses risks for neurodevelopmental outcomes.
  • Executive functions (EF) are crucial for academic and social success.
  • Previous research suggests potential cognitive deficits in preterm children.

Purpose of the Study:

  • To investigate executive function (EF) impairments in very preterm children at early school age.
  • To determine if EF deficits are independent of intelligence quotient (IQ) and processing speed.
  • To identify demographic and neonatal risk factors associated with EF impairments.

Main Methods:

  • Compared 50 very preterm children (mean GA 28.0 weeks) with 50 full-term controls at mean age 5.9 years.
  • Administered a comprehensive executive function (EF) battery assessing inhibition, working memory, switching, verbal fluency, and concept generation.
  • Analyzed associations with demographic factors (maternal education) and neonatal factors (gestational age).

Main Results:

  • Very preterm children showed significant impairments across all assessed executive function (EF) domains compared to controls.
  • These EF deficits persisted even after controlling for IQ and processing speed.
  • Lower maternal education and younger gestational age were associated with poorer EF outcomes.

Conclusions:

  • Very preterm birth is associated with significant, IQ-independent executive function (EF) impairments in early school-aged children.
  • Gestational age and maternal education are important predictors of EF development in this population.
  • These findings highlight the need for early intervention and support for very preterm children.

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