ArticleBMJ open respiratory research2022
Cannabis use and risks of respiratory and all-cause morbidity and mortality: a population-based, data-linkage, cohort study.
Article in BMJ open respiratory research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.
- Effect of recreational cannabis use on bone mineral density: a systematic review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2024Pooled it
- Article
- Trends in urine screening positive for cannabis of emergency department admissions in Israel 2016-2024.Journal of cannabis research · 2025Article
- Paradox of protection: Re-examining cannabis use disorder in sepsis outcomes among cancer patients.World journal of critical care medicine · 2025Article
- Relative Risk of All-Cause Mortality Associated With Cannabis Use: A Systematic Review and Meta-Analysis of Cohort Studies.Health science reports · 2025Review
- Cannabis use disorder and severe sepsis outcomes in cancer patients: Insights from a national inpatient sample.World journal of critical care medicine · 2025Article
- The Healthy Homes Study: Protocol for a cluster randomized trial of a place-based smoke-free home intervention in affordable housing.PloS one · 2025Article
- Marijuana's Impact On Implant-based Breast Reconstruction: A Retrospective Cohort Study.Plastic and reconstructive surgery. Global open · 2024Article
- The Impact of Cannabis Use on Clinical Outcomes in Inflammatory Bowel Disease: A Population-based Longitudinal Cohort Study.Inflammatory bowel diseases · 2024Article
- Mental and Physical Health-Related Cannabis Motives Mediate the Relationship between Childhood Trauma and Problematic Cannabis Use over Time among Emerging Adult Cannabis Users.Substance use & misuse · 2024Article
- Trends in hospital admission related to poisoning by, narcotics and psychodysleptics and poisoning by antiepileptic, sedative-hypnotic, and antiparkinsonism drugs in England and Wales between April 1999 and April 2020: An ecological study.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2023Article
- Acute Toxicity and Pharmacokinetic Profile of an EU-GMP-CertifiedPharmaceuticals (Basel, Switzerland) · 2023Article
- Mental health adverse events with cannabis use diagnosed in the Emergency Department: what are we finding now and are our findings accurate?Frontiers in psychiatry · 2023Review
- Article
- Association of a Positive Drug Screening for Cannabis With Mortality and Hospital Visits Among Veterans Affairs Enrollees Prescribed Opioids.JAMA network open · 2022Article
- Unmasking the Burden of Cannabis in Cirrhosis: A Propensity-Matched Real-World Analysis.Acta gastroenterologica LatinoamericanaArticle
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionAlthough cannabis is frequently used worldwide, its impact on respiratory health is characterised by controversy.
objectiveTo evaluate the association between cannabis use and respiratory-related emergency room (ER) visits and hospitalisations.
methodsA retrospective, population-based, cohort study was carried out, linking health survey and health administrative data for residents of Ontario, Canada, aged 12-65 years, between January 2009 and December 2015. Individuals self-reporting cannabis use within the past year were matched to control individuals (people who reported never using cannabis, or used cannabis only once, and more than 12 months ago) in upwards of a 1:3 ratio on 31 different variables, using propensity score matching methods. Respiratory-related and all-cause ER visits or hospitalisations, and all-cause mortality, were evaluated up to 12 months following the index date.
resultsWe identified 35 114 individuals who had either used cannabis in the past year or were controls, of whom 6425 (18.3%) used cannabis in the past year. From this group, 4807 (74.8%) were propensity-score matched to 10 395 control individuals. In the propensity score matched cohort, there was no significant difference in odds of respiratory-related ER visit or hospitalisation between cannabis users and the control group (OR 0.91, 95% CI 0.77 to 1.09). Compared with control individuals, cannabis users had significantly increased odds of all-cause ER visit or hospitalisation (OR 1.22, 95% CI 1.13 to 1.31) and there was no significant difference with respect to all-cause mortality (OR 0.99, 95% CI 0.49 to 2.02).
conclusionsAlthough no significant association was observed between cannabis use and respiratory-related ER visits or hospitalisations, the risk of an equally important morbidity outcome, all-cause ER visit or hospitalisation, was significantly greater among cannabis users than among control individuals. Therefore, cannabis use is associated with increased risk for serious adverse health events and its recreational consumption is not benign.
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