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Source study found

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Study links recreational cannabis legalization to rising heart attack admissions (opens in a new tab)

news-medical.net · 2026-10-22

Short answerEvidenceSource

Short answer

Not assessed

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We found a likely source study, but its evidence could not be prepared for claim review. The article's claims remain unverified.

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NewsLink checks it

Source study identified.

A source study was identified, but the study's evidence could not be prepared for claim assessment. No claim verdicts are available.

View article claims
3

The source study

Cannabis legalisation and cardiovascular hospitalisations in the United States: nationwide difference-in-differences analysis, 2012–2018

BMJ Open · 2026
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Then inspect each claim

Evidence layer

Claim by claim

A source study was identified, but the study's evidence could not be prepared for claim assessment. The claims below have not been assessed.

Claim 1 of 5Not checkedLegalization of recreational cannabis in the US is associated with a rise in hospital admissions for cardiovascular disease, according to an analysis of more than 50 million patient discharge records published in BMJ Open.View evidenceHide evidence

Not checked

A source study was identified, but the evidence comparison for this claim was not completed. No verdict has been assigned.

Claim 2 of 5Not checkedAdmissions for atrial fibrillation, heart failure, and heart attack all rose faster after recreational cannabis laws were enacted in the Western region of the US than in states without those laws.View evidenceHide evidence

Not checked

A source study was identified, but the evidence comparison for this claim was not completed. No verdict has been assigned.

Claim 3 of 5Not checkedThe study analyzed National Inpatient Sample data from 2012-2018, covering 50,042,564 hospital discharge records, and compared rates before and after legalization in the Western region with other US regions.View evidenceHide evidence

As stated50,042,564 hospital discharge records; 2012-2018

Not checked

A source study was identified, but the evidence comparison for this claim was not completed. No verdict has been assigned.

Claim 4 of 5Not checkedThe estimated annual change in admission rates after legalization was statistically significant for atrial fibrillation (just over 2% higher), heart failure (nearly 4% higher), and heart attack (just over 3% higher), after adjustment for potentially influential factors.View evidenceHide evidence

As statedjust over 2%, nearly 4%, just over 3% higher per year

Not checked

A source study was identified, but the evidence comparison for this claim was not completed. No verdict has been assigned.

Claim 5 of 5Not checkedThe article says the study is observational and cannot establish cause and effect, and notes limitations including inability to separate individual states, inability to assess method of cannabis use, and inability to account for trends in illegal use.View evidenceHide evidence

Not checked

A source study was identified, but the evidence comparison for this claim was not completed. No verdict has been assigned.

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Method layer

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Open the paper in Tessa

Cannabis legalisation and cardiovascular hospitalisations in the United States: nationwide difference-in-differences analysis, 2012–2018

BMJ Open · 2026

Source record (opens in a new tab)

Why this one

Near certain

NewsLink found the paper. Tessa is where you inspect it deeply.

Papers considered

The selected paper, plus nearby candidates.

Crossref, PubMed, Europe PMC · 16 candidate papers

Selected

Cannabis legalisation and cardiovascular hospitalisations in the United States: nationwide difference-in-differences analysis, 2012–2018

BMJ Open · 2026 · Crossref

Source (opens in a new tab)

And 10 more candidates considered.