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Concurrent Collection of Fetal Murine Brain and Serum to Assess Effects of Maternal Diet on Nutrition and Neurodevelopment in Neurofibromatosis Type 1
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Gestational weight gain and child cognitive development.

Sarah A Keim1, Nathan T Pruitt

  • 1The Research Institute at Nationwide Children's Hospital, Center for Biobehavioral Health, Columbus, OH, USA. sarah.keim@nationwidechildrens.org

International Journal of Epidemiology
|February 9, 2012
PubMed
Summary
This summary is machine-generated.

Gestational weight gain (GWG) extremes may not impact child cognition. Familial factors significantly confound the relationship between GWG and cognitive development, with most associations becoming null after controlling for shared family influences.

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Area of Science:

  • Perinatal Health
  • Child Development
  • Cognitive Science

Background:

  • The Institute of Medicine (IOM) updated gestational weight gain (GWG) guidelines.
  • Associations between extreme GWG and child cognitive outcomes remain unclear.

Purpose of the Study:

  • To investigate the relationship between GWG and child cognitive development.
  • To assess the influence of familial factors on this association.

Main Methods:

  • Utilized U.S. Collaborative Perinatal Project data (1959-1973).
  • Included 31,968 children assessed at ages 4 and 7 using cognitive and achievement tests.
  • Employed generalized estimating equations (GEE) and fixed-effects (FE) models, including sibling analyses.

Main Results:

  • Initial GEE analysis suggested non-linear, inverted U-shaped associations between GWG and cognition.
  • FE models controlling for familial factors revealed null associations for most cognitive outcomes.
  • A positive linear association was observed between GWG above IOM recommendations and WRAT spelling scores.

Conclusions:

  • Familial factors are significant confounders in the GWG-cognition relationship.
  • After accounting for familial influences, GWG is generally not associated with child cognitive development.
  • The study highlights the importance of considering shared environmental and genetic factors.