ArticleJAMA network open2021
Changes in Emergency Department Encounters for Vomiting After Cannabis Legalization in Colorado.
Article in JAMA network open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Trends in Emergency Department Visits Involving Cannabis Hyperemesis Syndrome Identified Using a New Diagnosis Code - United States, January 2023-May 2026.MMWR. Morbidity and mortality weekly report · 2026Article
- Patient-reported outcomes in cannabinoid hyperemesis syndrome patients treated in the emergency department: a pilot study.Clinical and experimental emergency medicine · 2026Article
- Changes in psychosis-related emergency department and hospitalization rates among youth following cannabis legalization in Colorado.Drug and alcohol dependence · 2025Article
- The Impact of Adult Cannabis Use Legalization in California: A Qualitative Review of Subject Matter Expert Opinions on Proposition 64.Cannabis (Albuquerque, N.M.) · 2025Article
- Prevalence and trends of suspected cannabinoid hyperemesis syndrome over an 11-year period in Northern California: An electronic health record study.Drug and alcohol dependence · 2024Observational
- Wernicke encephalopathy in a pediatric patient with cannabinoid hyperemesis: A novel case report.JPGN reports · 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
- Trends of emergency department visits for cannabinoid hyperemesis syndrome in Nevada: An interrupted time series analysis.PloS one · 2024Article
- Article
- Fungal and mycotoxin contaminants in cannabis and hemp flowers: implications for consumer health and directions for further research.Frontiers in microbiology · 2023Review
- Article
- Changes in Emergency Department Visits for Cannabis Hyperemesis Syndrome Following Recreational Cannabis Legalization and Subsequent Commercialization in Ontario, Canada.JAMA network open · 2022Article
- Risk of respiratory, gastrointestinal, and constitutional health symptoms: A cross-sectional study of Texas adolescent and young adult nicotine and marijuana vapers.Preventive medicine · 2022Article
- A Phone Consultation Call Line to Support SBIRT in Pediatric Primary Care.Frontiers in psychiatry · 2022Article
- Article
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6 authors.
Funding
Abstract
Importance: Cannabis hyperemesis syndrome is an emerging clinical issue associated with cannabis use. Legalization of cannabis has led to an increase in vomiting-related illnesses in health care settings. Objective: To examine whether legalization of cannabis in Colorado has been associated with increases in vomiting-related emergency department (ED) visits. Design, Setting, and Participants: A cross-sectional design was used to assess the increase in ED claims for vomiting reported to the Colorado Hospital Association between January 1, 2013, and December 31, 2018, in counties that had no prior cannabis dispensaries before legalization compared with those that did. A total of 820 778 patients seeking care through Colorado EDs were included in the analysis. Exposures: The number of medical and recreational cannabis dispensaries per county per quarter. Main Outcomes and Measures: County per capita rate of vomiting-related ED claims per quarter. Results: Vomiting-related ED health care encounters increased from 119 312 in 2013 to 153 699 in 2018 (29% increase). Over this period, 203 861 patients (25%) were aged 0 to 18 years; 114 201 (14%) were aged 19 to 25 years, and 502 771 (61%) were aged 26 years or older; 510 584 patients (62%) were female. Additional recreational dispensaries were associated with increased vomiting-related ED visits (incidence rate ratio, 1.03; 95% CI, 1.01-1.05), but counties with high baseline medical dispensary exposure experienced smaller increases in vomiting-related ED visits than counties with no baseline medical dispensary exposure (incidence rate ratio, 0.97; 95% CI, 0.95-0.99). Counties with a high number of medical marijuana dispensaries had increases at a 5.8% slower rate than counties with none. Conclusions and Relevance: The findings of this study suggest that cannabis legalization in Colorado is associated with an increase in annual vomiting-related health care encounters with regard to exposure to these markets. It may be useful for health care clinicians to be aware of cannabis hyperemesis syndrome and inquire about cannabis use when appropriate.
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