• Am. J. Med. · Jul 2022

    Association between Current and Cumulative Cannabis use and Heart Rate. The Coronary Artery Risk Development in Young Adults (CARDIA) Study.

    • Julian Jakob, Odile Stalder, Tali Kali, Etienne Pruvot, Mark J Pletcher, Jamal S Rana, Stephen Sidney, and Reto Auer.
    • Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of Pediatrics, University Hospital Bern (Inselspital) Bern, Switzerland. Electronic address: julian.jakob@biham.unibe.ch.
    • Am. J. Med. 2022 Jul 1; 135 (7): 871-878.e14.

    BackgroundResting heart rate can predict cardiovascular disease. Heart rate increases with tobacco smoking, but its association with cannabis use is unclear. We studied the association between current and cumulative cannabis use and heart rate.MethodsWe used data from the Coronary Artery Risk Development in Young Adults (CARDIA) Study, a large prospective cohort of 5115 Black and white women and men followed over 30 years. We explored the association between cannabis exposure and heart rate, adjusted for demographic factors, cardiovascular risk factors, alcohol and other illicit drug use, physical activity, and beta-blockers, in mixed longitudinal models censoring participants with cardiovascular disease.ResultsCARDIA participants contributed to 35,654 individual examinations over 30 years. At the Year 30 examination, 471 out of 3269 (14%) currently used cannabis. In multivariable adjusted models, compared to no current use, using cannabis 5 times per month was associated with lower heart rate of -0.7 beats per minute (95% confidence interval: -1.0 to -0.3), and daily use with lower heart rate of -2.1 beats per minute (95% confidence interval: -3.0 to -1.3, overall P < .001). Cumulative exposure to cannabis use was not associated with heart rate.ConclusionRecent current cannabis use was associated with lower resting heart rate. The findings appeared to be transient because past cumulative exposure to cannabis was not associated with heart rate. This adds to the growing body of evidence suggesting a lack of deleterious association of cannabis use at a level typical of the general population on surrogate outcomes of cardiovascular disease.Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.

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