Aims. To examine the relationship between cannabis use in adolescence and the onset of
other illicit drug use. Method. Data were gathered over the course of a 21‐year longitudinal …

Background There is a developing body of research looking at cannabis use opportunity, but
little research examining timing of opportunity to use cannabis. Aims Identify factors …

Aims To compare the prevalence of mental disorders between frequent cannabis users with
and without dependence and the general population. Design Cross‐sectional comparison of …

Background Perceived risk of harm associated with cannabis use has decreased in recent
decades, particularly among emerging adults who show the highest prevalence of use …

Background Regulatory changes are increasing access to both medical cannabis and
cannabis in general. As such, understanding patterns of recreational and medical cannabis …

Background Knowledge of factors relating to patterns of cannabis use is important for
informing drug policy. This study determined factors associated with recent and current …

Background The increase in cannabis potency may have treatment implications for cannabis
use disorder (CUD). Given the reported increase in prevalence of cannabis use among …

Abstract Introduction and Aims Recent years have witnessed increased attention to how
cannabis use impacts the use of other psychoactive substances. The present study …

Abstract In the United States (US), three in 10 cannabis users develop cannabis use
disorder (CUD). Usage patterns in line with CUD may be associated with socio-economic …

Co-occurring cannabis use is common among those with opioid use disorder (OUD), but the
extent to which it is harmful may be due to its preparation and concentration of various …