| Journal | JAMA |
| Study Type | Clinical Study |
| Population | Human participants |
This comprehensive review establishes evidence-based prepregnancy care standards that include cannabis cessation as a core recommendation alongside other substance use interventions. With two-thirds of reproductive-aged women having modifiable risk factors, this guidance provides clear clinical direction for cannabis counseling in preconception care.
This JAMA review synthesizes evidence for prepregnancy interventions to optimize maternal and fetal outcomes. The authors recommend cessation of cannabis, tobacco, alcohol, and opioids as standard preconception care, alongside folic acid supplementation, immunizations, and infectious disease screening. The review demonstrates substantial risk reductions for evidence-based interventions like folic acid (33% reduction in neural tube defects) and tobacco cessation (significant reductions in stillbirth and neonatal death). While specific cannabis outcome data are not detailed in this summary, cannabis cessation is positioned as an established standard of care.
“This review reinforces what I counsel patients daily: preconception planning should include frank discussion about all substance use, including cannabis. The inclusion of cannabis cessation alongside other evidence-based interventions validates our clinical approach to comprehensive reproductive health counseling.”
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Table of Contents
- FAQ
- Why should women stop using cannabis before pregnancy?
- What percentage of reproductive-aged women have risk factors that could affect pregnancy?
- What are the essential interventions recommended before pregnancy?
- How effective is folic acid supplementation in preventing birth defects?
- What are the specific risks of tobacco smoking during pregnancy?
FAQ
Why should women stop using cannabis before pregnancy?
Cannabis cessation is recommended as part of comprehensive prepregnancy care to optimize maternal health before conception and improve outcomes for both mothers and infants. While this study identifies cannabis cessation as a key intervention, specific risks and outcomes require additional evidence for full clinical guidance.
What percentage of reproductive-aged women have risk factors that could affect pregnancy?
According to this research, 66.4% of reproductive-aged women in the US have at least one modifiable risk factor for adverse pregnancy outcomes. This highlights the critical importance of prepregnancy counseling and intervention for the majority of women planning to conceive.
What are the essential interventions recommended before pregnancy?
Key evidence-based interventions include folic acid supplementation, cessation of tobacco, alcohol, cannabis, and opioids, immunizations against hepatitis B, varicella, and rubella, plus screening for syphilis and HIV. These interventions collectively optimize maternal health and reduce risks of adverse pregnancy outcomes.
How effective is folic acid supplementation in preventing birth defects?
Folic acid use before pregnancy is associated with a 33% reduction in fetal neural tube defects (relative risk 0.67, 95% CI 0.52-0.87). This represents one of the most well-established and effective prepregnancy interventions available.
What are the specific risks of tobacco smoking during pregnancy?
Maternal tobacco smoking significantly increases risks of stillbirth (46% increase), neonatal death (22% increase), and perinatal death (33% increase) based on summary relative risk data. These substantial risk increases underscore the critical importance of smoking cessation before conception.

