Association of cannabis use during pregnancy with severe acute respiratory syndrome coronavirus 2 infection: a retrospective cohort study

Abstract Background and Aims: Cannabis use is increasingly common among pregnant individuals and might be a risk factor for severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection. We aimed to test whether prenatal cannabis use is associated with increased risk of SARS‐CoV‐2 infection during pregnancy. Design: This is a retrospective cohort study. Setting: The study was conducted in California, USA. Participants: A total of 58 114 pregnancies (with outcomes from 5 March 2020 to 30 September 2021) among 57 287