Associations between anhedonia and marijuana use escalation across mid-adolescence.

ABSTRACT:

Background and aims

Anhedonia-a transdiagnostic psychopathological trait indicative of inability to experience pleasure-could lead to and result from adolescent marijuana use, yet this notion has not been tested. This study aimed to estimate the association of: (1) anhedonia at age 14 with rate of change in marijuana use over an 18-month follow-up, and (2) marijuana use at age 14 with rate of change in anhedonia over follow-up. Secondary aims were to test whether gender, baseline marijuana use history and peer marijuana use moderated these associations.

Design

Observational longitudinal cohort repeated-measures design, with baseline (age 14 years), 6-month, 12-month and 18-month follow-up assessments.

Settings

Ten public high schools in Los Angeles, CA, USA, 2013-15.<

SUBMITTER: Leventhal AM 

PROVIDER: S-EPMC5673572 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature