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Maternal Marijuana Use and Childhood Outcomes

Between four and five percent of pregnant women report some level of cannabis use. This level decreases markedly throughout pregnancy. Many women who report using cannabis during pregnancy do so to address symptoms of nausea/morning sickness.


RESOURCES: Cannabis and pregnancy: Maternal child health implications during a period of drug policy liberalization, Preventive Medicine, 2017 | Marijuana use in pregnancy and lactation: A review of the evidence, American Journal of Gynecology & Obstetrics & Gynecology, 2015 | Survey of medicinal cannabis use among childbearing women: patterns of its use in pregnancy and retroactive self-assessment of its efficacy against ‘morning sickness’, Complementary Therapies In Clinical Practice, 2006


Data to date is inconsistent with respect to whether in utero cannabis exposure is independently associated with low birthweight, pre-term birth, or other adverse neonatal outcomes (e.g., shorter gestational age)


In utero cannabis exposure is not independently associated with significant, consistent adverse effects on childhood development



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