Maternal Marijuana Use During Pregnancy, Marijuana Legalization, and Adverse Obstetrical and Neonatal Outcomes: A 12-year Cohort Study (COVID-19 Revision)

As of March 26, 2020, there have been more than 80,000 cases and 1,000 deaths in the US due to COVID-19. Because it attacks the lungs, COVID-19 could be an especially serious threat to those who smoke or vape tobacco or cannabis. This study will use data from the Kaiser Permanente Northern California universal prenatal substance use screening program to examine whether women who use substances before or during pregnancy are at increased risk for COVID-19 onset and progression. We will also look at whether prenatal substance use rates rise during the pandemic overall or within certain subgroups, such as women with depression, anxiety, or low socioeconomic status.

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