Babies at double hazard: early development of infants at biologic and social risk

Pediatrics
|November 1, 1982
PubMed

Insights

Early childhood development is impacted by social class and behavioral issues. Environmental factors significantly affect cognitive development in both full-term and premature infants.

Area of Science:

  • Developmental Psychology
  • Pediatrics
  • Sociology

Background:

  • Neonatal intensive care unit (NICU) graduates are a vulnerable population.
  • Socioeconomic status and behavioral factors may influence long-term developmental outcomes.
  • Understanding environmental impacts on cognitive development is crucial for early intervention.

Purpose of the Study:

  • To investigate the long-term cognitive and psychosocial development of NICU graduates.
  • To identify factors associated with cognitive decline in early childhood.
  • To examine the differential impact of environmental factors on full-term versus premature infants.

Main Methods:

  • Longitudinal study of 114 NICU infants followed from birth to 3.5 years.
  • Exclusion of infants with severe brain damage or mental retardation at 7 months.
  • Cognitive and behavioral assessments at various developmental milestones.

Main Results:

  • Normal cognitive development observed until 15 months.
  • Significant cognitive decline observed from 28 months, associated with social class.
  • Behavioral maladjustment led to impaired cognitive development across all social classes.
  • Neurologic pathology and gestational age (small for gestational age vs. appropriate for gestational age) did not significantly affect IQ at 3.5 years.
  • Premature infants showed greater vulnerability to environmental insufficiencies.

Conclusions:

  • Environmental deficits and stresses negatively impact cognitive and psychosocial development in NICU graduates.
  • Social class and behavioral maladjustment are key predictors of cognitive decline.
  • Premature infants are more susceptible to adverse environmental influences than full-term infants.

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