The end of convergence in developmental patterns of frequent marijuana use from ages 18 to 30: An analysis of cohort change from 1976-2016.

ABSTRACT:

Background

This study examines the extent to which the developmental pattern of frequent marijuana use prevalence from ages 18 to 30 (overall and by gender) has varied across historical time (cohort groups) using data from a national sample of US young adults.

Methods

Self-reported data on frequent marijuana use (use on 20+ occasions in the past 30 days) from modal ages 18 to 30 were obtained from 58,059 individuals from 29 sequential cohorts (graduating high school classes of 1976-2004) participating in the Monitoring the Future study. Time-varying effect modeling was used to model cohort group differences in developmental patterns of frequent use overall and by gender.

Results

Developmental patterns of frequent marijuana use prevalence varied meaningfully across coh

SUBMITTER: Terry-McElrath YM 

PROVIDER: S-EPMC6458596 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature