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Inverse associations between cord vitamin D and attention deficit hyperactivity disorder symptoms: A child cohort

Mats H Mossin1, Jens B Aaby1, Christine Dalgård2

  • 11 Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.

The Australian and New Zealand Journal of Psychiatry
|October 4, 2016
PubMed

Insights

Higher prenatal vitamin D (25-hydroxyvitamin D2+3 or 25(OH)D) levels were linked to fewer attention deficit hyperactivity disorder symptoms in toddlers. This suggests vitamin D may offer protection against ADHD development.

Area of Science:

  • Pediatric Health
  • Nutritional Science
  • Developmental Psychology

Background:

  • Attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in children.
  • Vitamin D is crucial for numerous bodily functions, including brain development.
  • Prenatal vitamin D status may influence fetal neurodevelopment.

Purpose of the Study:

  • To investigate the association between cord blood 25-hydroxyvitamin D (25(OH)D) levels and ADHD symptoms in toddlers.
  • To determine if prenatal vitamin D exposure impacts the risk of developing ADHD-related behaviors.

Main Methods:

  • A population-based birth cohort study included 1233 toddlers.
  • Parental Child Behaviour Checklist for ages 1.5-5 was used to assess ADHD symptoms.
  • Multiple regression analysis was employed to examine adjusted associations between cord 25(OH)D and ADHD scores.

Main Results:

  • The median cord 25(OH)D level was 44.1 nmol/L.
  • Higher cord 25(OH)D levels (>25 nmol/L and >30 nmol/L) were associated with lower ADHD problem scores.
  • Each 10 nmol/L increase in cord 25(OH)D was associated with an 11% decrease in the odds of scoring in the top 10% for ADHD problems.

Conclusions:

  • An inverse association exists between cord 25(OH)D and toddler ADHD symptoms.
  • Prenatal vitamin D sufficiency may have a protective effect against ADHD development.
  • These findings highlight the potential importance of maternal vitamin D status during pregnancy.
Abstract

Keywords:
Child Behaviour Checklist 1.5–5Hyperactivity disorderassociationcohort studyvitamin D

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