Background Cannabis policy has shifted toward legalization in many parts of the United
States (US). While attention has been focused on whether legalization will lead to changes …

Importance In the US, cannabis use has nearly doubled during the past decade, in part
because states have implemented recreational cannabis laws (RCLs). However, it is unclear …

Background Cannabis legalization and increases in cannabis use are occurring rapidly in
the United States (US). Cannabis and tobacco are often used together, but it is unclear …

Background The US state of Washington legalized recreational cannabis in 2012; how this
impacted the co-use of cannabis and alcohol in the population overall and among key …

Importance Little is known about changes in cannabis use outcomes by race and ethnicity
following the enactment of recreational cannabis laws (RCLs). Objectives To examine the …

Background Whether medical or recreational cannabis legalization impacts alcohol or
cigarette consumption is a key question as cannabis policy evolves, given the adverse …

Background Most US states have legalized cannabis for medical and/or recreational use. In
a 6-month prospective observational study, we examined changes in adult cannabis use …

Background In the context of cannabis legalization in Canada, we examined the effects on
cannabis patterns of consumption, including cannabis use, daily cannabis use and cannabis …

Background In the context of the shifting legal landscape of medical cannabis, different
methods of cannabis administration have important public health implications. How medical …

Background: The past decade has seen unprecedented shifts in the cannabis policy
environment, and the public health impacts of these changes will hinge on how they affect …