Does liberalisation of cannabis policy influence levels of use in adolescents and young adults? A systematic review and meta-analysis.

ABSTRACT:

Objectives

To examine the effect of cannabis policy liberalisation (decriminalisation and legalisation) levels of use in adolescents and young adults.

Design

Systematic review and meta-analysis.

Inclusion criteria

Included studies were conducted among individuals younger than 25 years and quantitatively assessing consequences of cannabis policy change. We excluded articles: (A) exclusively based on participants older than 25 years; (B) only reporting changes in perceptions of cannabis use; (C) not including at least two measures of cannabis use; (D) not including quantitative data; and (E) reviews, letters, opinions and policy papers. PubMed, PsycINFO, Embase and Web of Science were searched through 1 March 2018.

Data extraction and synthesis

Two independent re

SUBMITTER: Melchior M 

PROVIDER: S-EPMC6624043 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature