• Colleen M O'Leary and Carol Bower.
• National Drug Research Institute, Curtin University, Perth, WA 6845, Australia. colleen.oleary@curtin.edu.au
• Drug Alcohol Rev. 2012 Mar 1; 31 (2): 170-83.

IssuesThe lack of consensus about whether low to moderate levels of prenatal alcohol exposure are a risk factor for fetal development has generated considerable debate about what advice policies and guidelines should provide.ApproachThis paper reviews the evidence from systematic reviews and meta-analyses examining the risk from low and moderate levels of prenatal alcohol exposure, along with the results of articles published 2009-2010, after the reviews.Key FindingsThe reported significant effects from low levels of prenatal alcohol exposure are likely due to methodological issues such as confounding and/or misclassification of exposure or outcome and there is no strong research evidence of fetal effects from low levels of alcohol exposure. However, harm is well-documented with heavy exposure and moderate levels of exposure, 30-40 g per occasion and no more than 70 g per week, have been demonstrated to increase the risk of child behaviour problems.ImplicationsWith such a small margin before there is increased risk to the fetus, it would be morally and ethically unacceptable for policies and guidelines to condone consumption of alcohol during pregnancy. Not all women will follow this advice and some women will inadvertently consume alcohol prior to pregnancy awareness requiring non-judgmental counselling and the provision of rational advice about the likelihood of risk to the fetus.ConclusionsThe policy advice that 'the safest choice for pregnant women is to abstain from alcohol during pregnancy' should be maintained. However, the abstinence message needs to be presented in a balanced and rational manner to prevent unintended negative consequences.© 2011 Australasian Professional Society on Alcohol and other Drugs.

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