Perioperative medicine & outcomes

Cannabis Use Disorder and Perioperative Complications

JAMA SurgPublished Retrospective cohort study

Main findingResult — go to the resultAdjusted odds ratio 1.19 95% CI 1.04–1.37

Authors' conclusion

In this cohort study, cannabis use disorder was associated with a modest increased risk of perioperative morbidity and mortality after major elective, inpatient, noncardiac surgery.

Study context

Population
Adults aged 18 to 65 years undergoing major elective inpatient noncardiac surgery, US National Inpatient Sample, 2016–2019hospitalizations, matched cohort
Participants
12,422 adults
Exposure
Cannabis use disorder vs no cannabis use disorder
  • Cannabis use disordern = 6,211
  • No cannabis use disordern = 6,211reference
Outcome
Composite of:
  • In-hospital mortality
  • 7 major perioperative complications (myocardial ischemia, AKI, stroke, respiratory failure, VTE, hospital-acquired infection, surgical procedure-related complications)
Methodological detailspopulation-based, propensity-score matched, 1:1 matched cohort
  • Population-based
  • Propensity-score matched
  • 1:1 matched cohort

Main finding

As reported in the abstract

Adjusted odds ratio

1.19

95% CI 1.04–1.37

P = 0.01

Events by group

Cannabis use disorder vs No cannabis use disorder
aOR 1.19 (95% CI 1.04–1.37); P = 0.01

Observational data: associations, not effects.

Original publication

Cannabis Use Disorder and Perioperative Complications. JAMA Surg. Published 1 September 2023. doi:10.1001/jamasurg.2023.2403

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