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Related Experiment Video

Updated: Apr 11, 2026

Construction of Vapor Chambers Used to Expose Mice to Alcohol During the Equivalent of all Three Trimesters of Human Development
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Maternal alcohol consumption.

R Gronimus1, D Ridout2, S Sandberg3

  • 1Specialist Registrar, Child and Adolescent Psychiatry East London NHS Foundation Trust, City and Hackney PCT, London, UK.

London Journal of Primary Care
|June 5, 2015
PubMed
Summary

Prenatal alcohol exposure significantly increases a child's risk for attention deficit hyperactivity disorder (ADHD). This meta-analysis found a 2.33 times higher likelihood of ADHD in exposed children, highlighting a critical environmental factor.

Keywords:
attention deficit disorder with hyperactivitygestational exposure to alcoholprenatal risk factorprimary care services

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Area of Science:

  • Neurodevelopmental Disorders
  • Environmental Epidemiology
  • Public Health

Background:

  • The etiology of Attention Deficit Hyperactivity Disorder (ADHD) is multifactorial, involving genetic and environmental influences.
  • Previous research identified gestational smoking and low birth weight as risk factors for ADHD.
  • The impact of prenatal alcohol exposure on ADHD risk requires further clarification, especially differentiating from Fetal Alcohol Syndrome Disorders (FASD).

Purpose of the Study:

  • To estimate the effect of gestational alcohol exposure on the risk of developing ADHD.
  • To explore the potential role of primary care in screening and intervention for pregnant women with mild to moderate alcohol consumption.

Main Methods:

  • A systematic literature search was conducted across multiple databases (MEDLINE, Cinahl, PsychInfo, EMBASE) from 1995-2008.
  • Three studies were included in a meta-analysis, with an additional study used for sub-analysis on alcohol consumption severity.
  • Fixed/random-effects meta-analysis was employed to combine odds ratios (OR), with heterogeneity assessed using Cochran's Q.

Main Results:

  • The meta-analysis yielded an overall odds ratio of 2.33 (95% CI, 1.18-4.61), indicating a 2.33 times higher likelihood of ADHD in children exposed to alcohol prenatally.
  • The association was statistically significant (z = 2.43, p = 0.02).

Conclusions:

  • Prenatal alcohol exposure is associated with an increased risk of ADHD in offspring.
  • Current evidence is limited, necessitating further research on dose-response, timing, genetic factors, and the role of FASD.
  • Primary care services could play a vital role in prevention and early intervention if mild to moderate alcohol consumption is confirmed as a risk factor.