Does cannabis substitute or complement alcohol after recreational cannabis legalization in the Washington State? A three-level mixed-effects modeling.

ABSTRACT:

Background

Whether cannabis substitute or complement alcohol remains inconclusive. Little is known about the daily-level associations between cannabis and alcohol use by cannabis user type (medical vs. recreational use) in people who use alcohol and cannabis within a legalized environment.

Methods

Adult participants were from four waves of Washington Panel Survey during 2014-2016, who consumed both cannabis and alcohol in the past six months. Daily measurements of alcohol and cannabis use in the past week were collected at each wave. Our outcome variable was continuous alcoholic drinks, the exposure was any cannabis use. We applied three-level negative binomial models to account for within-person wave-to-wave and between-person variations, deriving pure within-person within-

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC11725433 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature