Association of Cannabis Retailer Proximity and Density With Cannabis Use Among Pregnant Women in Northern California After Legalization of Cannabis for Recreational Use

Prenatal cannabis use is associated with adverse perinatal outcomes1 and is increasing with expanding legalization.2,3 While it is known that retail availability of cannabis is associated with adult cannabis use,4,5 it is less clear whether living closer to a cannabis retailer or in a neighborhood with greater cannabis retailer density is associated with prenatal cannabis use. This cross-sectional study assessed the association between...