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Evaluating preterm infants with the Bayley-III: patterns and correlates of development

Michelle M Greene1, Kousiki Patra, Michael N Nelson

  • 1Department of Pediatrics, Rush University Medical Center, Chicago, IL, United States. Michelle_Greene@rush.edu

Research in Developmental Disabilities
|June 29, 2012
PubMed

Insights

Preterm infants often show lower language and motor skills compared to cognitive abilities. Neonatal factors like head ultrasound and oxygen needs significantly impact neurodevelopmental outcomes in these infants.

Area of Science:

  • Neurodevelopmental Pediatrics
  • Infant Psychology
  • Neonatal Medicine

Background:

  • Preterm infants face risks for neurodevelopmental delays.
  • The Bayley Scales of Infant and Toddler Development (Bayley-III) is a key assessment tool.
  • Understanding early developmental trajectories is crucial for timely intervention.

Purpose of the Study:

  • To examine neurodevelopmental patterns in preterm infants (8-12 months) using the Bayley-III.
  • To identify correlations between neonatal risk factors and neurodevelopmental outcomes.
  • To evaluate the utility of the Language Index in the Bayley-III.

Main Methods:

  • Utilized the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III).
  • Assessed neurodevelopmental performance (Cognitive, Language, Motor Indices) in preterm infants.
  • Employed regression models to analyze relationships between risk factors and outcomes.

Main Results:

  • Language Index (LI) and Motor Index (MI) were significantly lower than the Cognitive Index (CI).
  • Language and motor skills were the weakest developmental domains for most infants.
  • Abnormal head ultrasound, oxygen dependence, and race/ethnicity predicted poorer neurodevelopmental outcomes.

Conclusions:

  • Results support the inclusion of the Language Index in the revised Bayley Scales.
  • Neonatal risk factors significantly predict neurodevelopmental performance in preterm infants.
  • Sociodemographic factors warrant further investigation in preterm infant development.

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