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The impact of prepregnancy obesity on children's cognitive test scores

Rika Tanda1, Pamela J Salsberry, Patricia B Reagan

  • 1The College of Nursing, The Ohio State University, Columbus, OH, USA. tanda.3@buckeyemail.osu.edu

Maternal and Child Health Journal
|February 22, 2012
PubMed

Insights

Maternal prepregnancy obesity is linked to lower child cognitive scores, even after accounting for other factors. Children in disadvantaged environments may be more susceptible to these effects.

Area of Science:

  • Public Health
  • Developmental Psychology
  • Pediatrics

Background:

  • Maternal prepregnancy obesity is a growing public health concern.
  • Early childhood cognitive development is crucial for academic success.
  • Understanding factors influencing child cognition is essential for targeted interventions.

Purpose of the Study:

  • To investigate the association between maternal prepregnancy obesity and cognitive test scores in early primary school-aged children.
  • To determine if this association persists after controlling for various confounding factors.

Main Methods:

  • Utilized a descriptive observational design with 3,412 US children (60-83 months old) from the National Longitudinal Survey of Youth 1979 Mother and Child Survey.
  • Assessed cognitive function using Peabody Individual Achievement Test (PIAT) reading recognition and mathematics scores.
  • Employed ordinary least squares regression, controlling for intrauterine, family background, maternal, and child factors.

Main Results:

  • Children of obese mothers scored significantly lower on PIAT reading recognition (3 points lower) and mathematics (2 points lower) tests.
  • These associations remained significant after adjusting for confounding variables.
  • Cognitive scores were also positively associated with stimulating home environment, household income, maternal education, and maternal cognitive skills.

Conclusions:

  • Maternal prepregnancy obesity is independently associated with lower cognitive test scores in children at early primary school age.
  • The findings suggest that children in disadvantaged postnatal environments may be disproportionately affected.
  • Further research with diverse cohorts is recommended to confirm these associations.

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