Associations between obesity and cognition in the pre-school years

Anne Martin, Josephine N. Booth, David Young, Matthew Revie, Anne C. Boyter, Blair Johnston, Phillip D. Tomporowski, John J. Reilly

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24 Citations (Scopus)
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Abstract

The objective was to test the hypothesis that obesity is associated with impaired cognitive outcomes in the pre-school years. Associations were examined between weight status at age 3-5 years and cognitive performance at age 5 years. Cognitive outcome measures were tests of Pattern Construction (visuo-spatial skills), Naming Vocabulary (expressive language skills), and Picture Similarity (reasoning skills). The sample was the UK Millennium Cohort Study (MCS; n 12,349 participants). Boys with obesity at 3 years had significantly lower performance in Pattern Construction at age 5 years compared to those of a healthy weight, even after controlling for confounders (β= -0.029, p=0.03). Controlling for confounders, boys who developed obesity between the age of 3 and 5 years had lower scores in Pattern Construction (β=-0.03, p=0.03). ’Growing out’ of obesity had a beneficial impact on Picture Similarity performance in girls (β=0.03, p=0.04). Obesity in the pre-school years was associated with poorer outcomes for some cognitive measures in this study. Stronger relationships between obesity and cognition or educational attainment may emerge later in childhood.
Original languageEnglish
JournalObesity
Early online date6 Dec 2015
DOIs
Publication statusE-pub ahead of print - 6 Dec 2015

Keywords

  • millennium cohort study
  • obesity
  • cognitive performance
  • early childhood
  • pre-school children

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