Trends and age, period and cohort effects for marijuana use prevalence in the 1984-2015 US National Alcohol Surveys.

ABSTRACT:

Background and aims

Epidemiological trends show marijuana use in the United States to have increased in recent years. Previous research has identified cohort effects as contributing to the rising prevalence, in particular birth cohorts born after 1945. However, given recent policy efforts to regulate marijuana use at the state level, period effects could also play a contributory role. This study aimed to examine whether cohort or period effects play a larger role in explaining trends in marijuana use.

Design

Using data from seven National Alcohol Surveys, we estimated age-period-cohort decomposition models for marijuana use, controlling for socio-demographic measures.

Setting

United States.

Participants

US general population aged 18 and older from 1984 to 2015.

SUBMITTER: Kerr WC 

PROVIDER: S-EPMC5807111 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature