Premature infants with birth weights of 1500-1999 g exhibit considerable delays in several developmental areas

Camila C Guerra1, Marina C de Moraes Barros, Ana Lucia Goulart

  • 1Neonatal Division, Department of Pediatrics, Federal University of São Paulo, São Paulo, SP, Brazil.

Insights

Premature infants born between 1500-1999g showed significant developmental delays, particularly in social and general adaptive domains. Factors like low income and caesarean delivery were linked to these delays, highlighting the impact of both biological and environmental influences.

Area of Science:

  • Pediatric developmental neuroscience
  • Neonatal developmental outcomes

Background:

  • Premature infants face heightened risks for developmental delays.
  • Understanding factors influencing developmental scores is crucial for early intervention.

Purpose of the Study:

  • To determine the prevalence of developmental delays in premature infants (1500-1999g birth weight).
  • To identify factors associated with developmental scores and delays in this population.

Main Methods:

  • Cross-sectional study of 100 premature infants (18-24 months corrected age).
  • Bayley Scales of Infant and Toddler Development, Third Edition (Bayley III) used for assessment.
  • Analysis of factors associated with developmental scores and delays.

Main Results:

  • High prevalence of delays observed in social (46.0%), general adaptive (26.0%), and conceptual (17.0%) domains.
  • Factors linked to delays included caesarean delivery, low income, and peri-intraventricular hemorrhage.
  • Reduced developmental scores associated with non-white ethnicity, lower social class, male gender, and longer hospitalization.

Conclusions:

  • Premature infants within this birth weight range experience significant developmental delays.
  • Both biological and environmental factors contribute to impaired developmental outcomes.
Abstract

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