Caregivers’ reports of discrimination were not linked to children’s overall IQ scores, but caregiver income and education remain important factors linked to children’s brain development, according to a new ECHO Cohort study led by Jennifer Porter, MD, of the University of Louisville.
Children’s early brain development helps shape how they learn, think, and solve problems. Although average IQ scores sometimes differ across population groups, research indicates these differences are explained by differences in social, economic, and environmental conditions. One possible factor is discrimination experienced by caregivers, which may affect children through stress or changes in the home environment. However, most past studies have focused on individual or economic factors and have not fully explored how caregiver experiences with discrimination might be related to children’s cognitive development. ECHO researchers looked at data from over 1,000 children and their caregivers from eight ECHO Cohort Study Sites across the United States to better understand how caregiver discrimination and other factors may influence child brain development.
Key Takeaways include:
- Caregivers’ reports of discrimination were not linked to children’s overall IQ scores for either Black or White children.
- Children tended to have higher IQ scores when their caregivers had higher income and more education.
- Neighborhood opportunity—as measured by the Child Opportunity Index that reflects neighborhood-level resources, such as access to healthy food, high-quality early childhood education, and economic opportunity—did not explain differences in children’s IQ scores after the researchers accounted for other factors.
- Across income levels, a much higher share of Black families lived in neighborhoods with low or very low opportunity. Black caregivers also reported more discrimination overall than White caregivers.
“The study did not find a link between caregiver discrimination and child IQ, but it raises the question of how we measure discrimination,” said Dr. Porter. “The current measures may not capture the different levels of discrimination experienced by caregivers.”
Future studies could help researchers better understand the complex relationship between caregiver discrimination, other social and environmental factors, and child brain development.
This collaborative research, titled “Perceived Caregiver Discrimination and Neurocognitive Development: An Analysis from the ECHO Cohort,” is published in Journal of Racial and Ethnic Health Disparities.