Developmental patterns of tobacco product and cannabis use initiation in high school.

ABSTRACT:

Aims

To identify prototypical developmental patterns of tobacco product and cannabis use and co-use initiation during adolescence, and determine risk factors for and consequences of these initiation patterns.

Design

Prospective repeated-measures cohort with eight semi-annual assessments during high school. Multiple-event process survival mixture modeling identified latent initiation classes with distinct patterns of variation in timing of use initiation of tobacco products and cannabis. We then estimated: (1) associations of baseline risk factors with membership in initiation classes and (2) differences between initiation classes in frequency of cannabis and tobacco product use at the final assessment.

Setting

Ten high schools in the Los Angeles, CA, USA metropolitan

SUBMITTER: Cho J 

PROVIDER: S-EPMC7736052 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature