The findings come as marijuana use among pregnant women is rising. Data from the National Survey on Drug Use and Health show that the proportion of pregnant women who said they used marijuana in the past month increased from 2.4% in 2002 to 3.9% in 2014, according to a study in the Journal of the American Medical Assn. A separate JAMA report of pregnant women treated at Kaiser Permanente medical offices in Northern California found that marijuana use by pregnant women jumped from 4% in 2009 to 7% in 2016.

Source: Los Angeles Times August 27, 2018 09:00 UTC