With more and more people turning to legal marijuana for medical and recreational use, and dispensaries marketing it as a cure for morning sickness, a growing number of moms-to-be are using the drug in pregnancy. In 2017, 6.5 percent of pregnant women said they used marijuana, compared to 4.9 percent in 2012. But recent findings bolster the evidence that suggests their best bet is to just say no.
Published in the Journal of the American Medical Association (JAMA) by epidemiologist Daniel J. Corsi and colleagues, the study looked at a retrospective cohort of Ontario women between 2012 and 2017?resulting in 5,639 expectant mothers who reported that they used marijuana, who were matched to 92,873 pregnant women who said they didn?t.

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Is it safe to use weed during pregnancy"Among these matched groups, the risk of preterm labour before 37 weeks gestation was almost 3 percent higher among the users?10.2 percent, as opposed to 7.2 percent in the nonusers. Researchers also found an increased risk of secondary outcomes that include babies being transferred to the NICU, a higher chance of being small for their gestational age, a lower Apgar score and placental abruption. On the flip side, however, a small protective association between using marijua...