Fecha de publicación: -- Fuente: PubMed "Cannabis" Arch Womens Ment Health. 2026 Nov 7;29(6):147. doi: 10.1007/s00737-026-01780-5.ABSTRACTPURPOSE: Adverse outcomes associated with cannabis use in pregnancy are affected by frequency of maternal cannabis use. This study examines time trends in frequency of cannabis use among U.S. pregnant women.METHODS: This study used data from the National Survey on Drug Use and Health. Participants included pregnant women aged 18-44 from 2010 to 2019 (n = 7,310), and 2021-2023 (n = 1,992). A multinomial regression model assessed time trends in low-moderate versus high-frequency cannabis use (< 15 versus [Formula: see text]15 days in the past month) from 2010 to 2019, controlling for age, education level, income, marital status and race/ethnicity. From 2021 to 2023, we examined the prevalence of low-moderate versus high-frequency cannabis use and whether use was reported as "recommended by a healthcare professional".RESULTS: From 2010 to 2019, high-frequency cannabis use in pregnancy increased from 1.15% to 3.43% (adjusted odds ratio (aOR) for increase per year = 1.10, 95% CI = 1.02-1.18), while low-to-moderate frequency cannabis use remained stable (1.76% in 2010, 1.93% in 2019; aOR = 1.04, 95% CI = 0.97-1.10). From 2021 to 2023, over half of pregnant women who used cannabis reported high-frequency use (4.31% high, versus 2.36% low-moderate). From 2021 to 2023, 15% of pregnant women reporting low-moderate cannabis use, versus 35% with high-frequency use, reported that cannabis use was recommended by a healthcare professional.CONCLUSIONS: High-frequency cannabis use during pregnancy increased among U.S women while low to moderate use of cannabis in pregnancy remained stable. From 2021 to 2023, one-third of pregnant women who used cannabis frequently reported that their use was recommended by a healthcare professional.PMID:42998101 | DOI:10.1007/s00737-026-01780-5