American journal of preventive medicine
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Given the increase of marijuana use among U.S. women, higher rates of unintended pregnancies among women who use marijuana, and potential consequences of maternal use, there is a need to identify factors associated with marijuana use in the period leading up to pregnancy. This study aims to provide estimates of preconception marijuana use and describe associations between preconception marijuana use and maternal characteristics among a population-based sample of recently delivered women in the U.S. ⋯ Reproductive-aged women who are intending pregnancy or likely to experience an unintended pregnancy should be asked about and encouraged to refrain from marijuana use, especially given the strong association with depressive symptomology and concurrent use of other substances, including tobacco.