ArticleAmerican journal of perinatology2020
Impact of Marijuana Legalization on Prevalence of Maternal Marijuana Use and Perinatal Outcomes.
Article in American journal of perinatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.
- Causal effects of cannabis legalization on parents, parenting, and children: A systematic review.Preventive medicine · 2022Pooled it
- Birth Outcomes of Neonates Exposed to Marijuana in Utero: A Systematic Review and Meta-analysis.JAMA network open · 2022Pooled it
- Society for Maternal-Fetal Medicine Special Statement: Guidance to reduce racial disparities in substance use screening and biological testing in pregnancy at the delivery admission.Pregnancy (Hoboken, N.J.) · 2026Article
- Attitudes and beliefs regarding cannabis use during pregnancy compared to alcohol and tobacco: a nationwide survey of U.S. women of childbearing age.Journal of cannabis research · 2026Article
- Receipt of reproductive safety data among pregnant marijuana users and nonusers.Archives of women's mental health · 2026Article
- Alcohol Consumption During Pregnancy and State Implementation of Legal Nonmedical Cannabis Retail Sales in the U.S., 2011-2023.American journal of preventive medicine · 2026Article
- Predictors of perinatal cannabis use in colorado and the association with depression during pregnancy.Archives of women's mental health · 2025Article
- Prenatal cannabis exposure is associated with alterations in offspring DNA methylation at genes involved in neurodevelopment, across the life course.Molecular psychiatry · 2025Article
- Evaluating maternal drug use disparities, risk factors and outcomes in Northeast Arkansas: a pre, during, and post-COVID-19 pandemic analysis.BMC public health · 2025Article
- Emergency Department Patients Presenting after Oral versus Inhaled Cannabinoid use: A Retrospective Analysis.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2025Article
- Cannabis Use During Early Pregnancy Following Recreational Cannabis Legalization.JAMA health forum · 2024Article
- The association between physical availability of cannabis retail outlets and frequent cannabis use and related health harms: a systematic review.Lancet regional health. Americas · 2024Review
- Incidence of postpartum depression in low-income cannabis users with and without a history of depression.Archives of women's mental health · 2024Article
- Is legal recreational cannabis associated with cannabis use during pregnancy, beliefs about safety, and perceived community stigma?Drug and alcohol dependence · 2024Article
- The unseen patient: competing priorities between patients and providers when cannabis is used in pregnancy, a qualitative study.Frontiers in global women's health · 2024Article
- Marijuana Use among Pregnant and Nonpregnant Women of Reproductive Age, 2013-2019.Substance use & misuse · 2024Article
- Potentially modifiable risk and protective factors affecting mental and emotional wellness in pregnancy.Frontiers in human neuroscience · 2024Article
- Health, safety, and socioeconomic impacts of cannabis liberalization laws: An evidence and gap map.Campbell systematic reviews · 2023Article
- Cannabis and Pregnancy: A Review.Obstetrical & gynecological survey · 2023Review
- Association of Mandatory Warning Signs for Cannabis Use During Pregnancy With Cannabis Use Beliefs and Behaviors.JAMA network open · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
objectiveWe aimed to assess whether marijuana legalization was associated with a difference in prevalence of prenatal use or an increase in incidence of adverse perinatal outcomes. STUDY
designThe present study is a retrospective cohort of September and October deliveries in the years 2012 through 2015 at a tertiary center in Colorado. Primary outcome of the study was use of marijuana, defined by self-report or biodetection. Secondary outcomes of the study included growth restriction, spontaneous preterm birth, stillbirth, preeclampsia, and neonatal or maternal death. Marijuana use prevalence was compared by year, and secondary outcomes between two periods, before and after the opening of the first recreational dispensary.
resultsA total of 2,392 pregnant women were included (1,165 before legalization and 1,227 after). More women used marijuana over the period of legalization (trend
conclusionThe prevalence of prenatal marijuana use increased over the time of legalization. Further investigation into the population impact of legalization on obstetrical outcomes is warranted given the observed increase in growth restriction.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.