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Prevalence of and Factors Associated With Substance Use Among Canadian Medical Students.

Substance use is prevalent in medical students and physicians and has important implications for their personal health, training, and clinical practice.1-4 However, there is a lack of recent, rigorous studies of medical student substance use from representative samples.4 This study aimed to identify the national prevalence of tobacco, alcohol, cannabis, and nonmedical prescription stimulant (NPS) use among Canadian medical students. Furthermore, we explored whether substance use varied by medical student demographics and was associated with psychological morbidity.