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Growth in black and white children with Down syndrome
Insights
Children with Down syndrome show similar growth rates regardless of race. External factors like maternal smoking and weight during pregnancy can influence long-term growth in these children.
Area of Science:
- Pediatric Growth Studies
- Genetics and Developmental Disorders
- Perinatal Health Research
Background:
- Down syndrome is a genetic disorder affecting development.
- Understanding growth patterns in children with Down syndrome is crucial for early intervention.
- Existing research may not fully capture racial or environmental influences on growth.
Purpose of the Study:
- To compare growth trajectories of black and white children with Down syndrome.
- To identify factors influencing growth in children with Down syndrome.
- To assess the impact of maternal and perinatal factors on long-term growth.
Main Methods:
- Longitudinal study comparing growth measurements (weight, length, head circumference).
- Analysis of data from 58 children (28 black, 30 white) with Down syndrome.
- Multivariate regression modeling to account for multiple variables.
Main Results:
- Black and white children with Down syndrome exhibit nearly identical growth rates.
- Maternal smoking during pregnancy was associated with altered growth patterns.
- Maternal weight at delivery also showed a significant influence on child growth.
Conclusions:
- Race is not a significant determinant of growth rate in children with Down syndrome.
- Environmental and maternal factors play a key role in the long-term growth of children with Down syndrome.
- These findings highlight potential targets for supportive interventions during pregnancy.
Abstract:
Growth in 28 black and 30 white children with Down syndrome was compared at birth, 4 months, 1 year, and 7 years. Weight, length, and head circumference measurements were taken from case records of the U.S. Collaborative Perinatal Project. A multivariate regression model was used to examine simultaneously the effects on these measurements of sex, race, presence of congenital heart disease, maternal smoking during pregnancy, and maternal weight at delivery. Results showed that black and white children with Down syndrome have essentially identical growth rates and that long-term growth of these children may be responsive to external influences, such as maternal smoking and maternal weight at delivery.