The relationship between obesity and cognitive performance in children

A longitudinal study

Amna Sadaf Afzal, Steven Gortmaker

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Background: The relationship between obesity and academic outcomes remains unclear. We evaluated the association between obesity and cognitive performance in US children. Methods: We analyzed two nationally representative prospective cohorts of children in the 1979 National Longitudinal Survey of Youth, ages 2 through 8 at baseline and followed for 6 years, from 1988 to 1994 (cohort 1, n=2672) and 1994 to 2000 (cohort 2, n=1991). The main exposure variable was obesity (defined as never obese, became obese, always obese, and became nonobese). The main outcomes were standardized scores on four cognitive assessments. Univariate regression analyses of test scores on obesity were performed. Fixed-effects regression models, controlling for measured and unmeasured time-invariant confounders, were additionally adjusted for time-variant confounders to analyze the impact of change in obesity status on change in test scores. Results: Unadjusted analyses revealed a significant association between obesity and Peabody Individual Achievement Test (PIAT) scores. In cohort 1, always obese children had lower PIAT math scores than never obese children (β=-7.48; p

Original languageEnglish (US)
Pages (from-to)466-474
Number of pages9
JournalChildhood Obesity
Volume11
Issue number4
DOIs
StatePublished - Aug 1 2015

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Longitudinal Studies
Obesity
Regression Analysis

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Endocrinology, Diabetes and Metabolism
  • Nutrition and Dietetics

Cite this

The relationship between obesity and cognitive performance in children : A longitudinal study. / Afzal, Amna Sadaf; Gortmaker, Steven.

In: Childhood Obesity, Vol. 11, No. 4, 01.08.2015, p. 466-474.

Research output: Contribution to journalArticle

Afzal, Amna Sadaf ; Gortmaker, Steven. / The relationship between obesity and cognitive performance in children : A longitudinal study. In: Childhood Obesity. 2015 ; Vol. 11, No. 4. pp. 466-474.
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