Cannabis Use Disorder Diagnosis Associated with Greater Risk of COVID Breakthrough Infections
Fully vaccinated persons with a clinical diagnosis of cannabis use disorder (CUD) possess a greater risk of COVID breakthrough infections as compared to similar controls, according to data published in the journal World Psychiatry.
Commenting on the paper’s findings, NORML’s Deputy Director Paul Armentano said that study “raises more questions than it answers,” but also cautioned that its findings should not yet be extrapolated to the cannabis consuming population as a whole. “Those subjects with this clinical diagnosis represent a very small and distinct subset of the cannabis consuming community and it is possible that they may possess certain behavioral traits or characteristics that place them at higher risk,” he said. “Arguably tens of thousands of cannabis consumers who did not have this diagnosis were also included in this cohort of over half a million people and they were classified as controls (subjects without a substance abuse disorder). Therefore, we have no idea from these findings what elevated risks, if any, these non-classified consumers – who comprise the overwhelming majority of marijuana users – possess.”
Researchers with the US National Institutes of Health and Case Western Reserve University in Cleveland evaluated whether those with a diagnosis of a substance abuse disorder (SUD) were at increased risk of breakthrough COVID infections in a cohort of 579,372 fully vaccinated individuals. Subjects’ substance abuse status was based on the ICD (International Classification of Diseases)-10 diagnosis code of “mental and behavioral disorders due to psychoactive substance use.” Subjects in the study designated with SUD tended to be older and possessed overall poorer health than did controls. Just over 2,000 persons in the cohort met the criteria for cannabis use disorder.
Authors reported: “Patients with cannabis use disorder, who were younger and had less comorbidities than the other SUD subtypes, had higher risk for breakthrough infection even after they were matched for adverse socioeconomic determinants of health and comorbid medical conditions with non-SUD patients (HR=1.55). This may indicate that additional variables, such as behavioral factors or adverse effects of cannabis on pulmonary and immune function, could contribute to the higher risk for breakthrough infection in this group.”
Throughout the COVID-19 pandemic, NORML has issued guidance with respect to how cannabis consumers may be able to mitigate their risks of either COVID exposure and/or adverse health outcomes due to the disease.
NORML advocates for changes in public policy so that the responsible possession and use of marijuana by adults is no longer subject to criminal penalties. NORML further advocates for a regulated commercial cannabis market so that activities involving the for-profit production and retail sale of cannabis and cannabis products are safe, transparent, consumer-friendly, and are subject to state and/or local licensure. Finally, NORML advocates for additional changes in legal and regulatory policies so that those who use marijuana responsibly no longer face either social stigma or workplace discrimination, and so that those with past criminal records for marijuana-related violations have the opportunity to have their records automatically expunged.
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