Prevalence and association of non-medical cannabis use with post-procedural healthcare utilisation in patients undergoing surgery or interventional procedures: a retrospective cohort study.

Introduction Approximately 18% of the population in the United States of America (USA) reported having used cannabis at least once in 2019, including whole-plant cannabis or specific compounds derived from the cannabis plant such as cannabidiol, following an increasing trend over the last decade. 1 , 2 Between 2016 and 2018, up to 22.2% of Massachusetts residents reported any prior cannabis use for recreational or medical purposes. 2 , 3 These trends in Massachusetts and across the USA may have been fueled by legislative changes throughout multiple states, such as the

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