Maternal marijuana exposure and birth weight: An observational study surrounding recreational marijuana legalization

8/23/19–A study to examine the relationship between prenatal marijuana and infant birth weight using natural cohorts established before, during and after the 20-month lapse between legalization and legal recreational sales in Washington State revealed marijuana exposure verified by UDS was associated with LBW and SGA. However, recreational marijuana legalization and availability did not have direct impact on newborns’ risk of LBW or SGA. Read