ArticleAmerican journal of preventive medicine2025
Association of Preconception and Prenatal Cannabis Use With Breastfeeding.
Article in American journal of preventive medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
1 citing paper in PubMed.
- Comparison of Lactation Information from Electronic Health Records with Survey Data Across Five US Health Systems.Epidemiology (Cambridge, Mass.) · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
introductionBreastfeeding is recommended. It is unknown whether preconception or prenatal cannabis use is related to breastfeeding behaviors.
methodsThis population-based retrospective cohort study included 200,207 pregnancies in Northern California (2016-2022) with live births screened in early pregnancy for cannabis use. Exposures included prenatal cannabis use, preconception cannabis use only, or no cannabis use. Additional analyses considered the frequency of prenatal cannabis use. Longitudinal breastfeeding outcomes assessed at each well-child visit during the first year included any breastfeeding and full breastfeeding (breastmilk without formula). Adjusted prevalence ratios were calculated using modified Poisson regression for longitudinal binary outcomes. Analyses were conducted in 2024 and 2025. The risk of stopping breastfeeding among those who started was modeled using Cox proportional hazard regression.
resultsOverall, 7.6% of pregnancies had preconception cannabis use only, and 7.2% had prenatal use. Most people (94.6% overall) initiated breastfeeding, with only modest differences by cannabis use (94.9% no cannabis use, 95.7% preconception cannabis use only, and 90.5% prenatal cannabis use). However, over time, prenatal cannabis use was associated with earlier discontinuation of breastfeeding (adjusted hazard ratio=1.12; 95% CI=1.09, 1.15) and lower prevalence of breastfeeding (adjusted prevalence ratio=0.84; 95% CI=0.82, 0.85 at 6 months and adjusted prevalence ratio=0.81; 95% CI=0.78, 0.83 at 12 months). Associations were stronger for higher-frequency use. There were small differences in breastfeeding between those with preconception cannabis use only and those with no use. Full breastfeeding results were similar.
conclusionsDespite high prevalence of breastfeeding initiation, prenatal cannabis use was associated with earlier breastfeeding discontinuation and lower prevalence at 6 and 12 months.
Indexed as
Identifiers
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.