Background: Recent data are inconclusive regarding the risk of arrhythmias among young cannabis users. Furthermore, many young adults use both cannabis and tobacco, which could add a residual confounding effect on outcomes. So, we studied young men who have cannabis use disorder (CUD) excluding tobacco use disorder (TUD) to understand their independent association with atrial fibrillation (AF) and related outcomes.

Aim: To study the association of CUD with AF and related outcomes.

Methods: We used weighted discharge records from National Inpatient Sample (2019) to assess the baseline characteristics and mortality rates for AF-related hospitalizations in young (18-44 years) men in 1:1 propensity-matched CUD + CUD- cohorts without TUD.

Results: Propensity matched CUD + and CUD- cohorts consisted of 108495 young men in each arm. Our analysis showed an increased incidence of AF in black population with CUD. In addition, the CUD + cohort had lower rates of hyperlipidemia (6.4% 6.9%), hypertension (5.3% 6.3%), obesity (9.1% 10.9%), alcohol abuse (15.5% 16.9%), but had higher rates of anxiety (24.3% 18.4%) and chronic obstructive pulmonary disease (COPD) (9.8% 9.4%) compared to CUD-cohort. After adjustment with covariates including other substance abuse, a non-significant association was found between CUD + cohort and AF related hospitalizations (odd ratio: 1.27, 95% confidence interval: 0.91-1.78, = 0.15).

Conclusion: Among hospitalized young men, the CUD + cohort had a higher prevalence of anxiety and COPD, and slightly higher proportion of black patients. Although there were higher odds of AF hospitalizations in CUD + cohort without TUD, the association was statistically non-significant. The subgroup analysis showed higher rates of AF in black patients. Large-scale prospective studies are required to evaluate long-term effects of CUD on AF risk and prognosis without TUD and concomitant substance abuse.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11372734PMC
http://dx.doi.org/10.5493/wjem.v14.i3.93742DOI Listing

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