Associations between older siblings' substance use and younger siblings' substance use intentions: Indirect effects via substance use expectations.

ABSTRACT:

Objective

We examined the direct and indirect effects of older siblings' substance use behaviors (i.e., cannabis and e-cigarettes) on younger siblings' later substance use intentions via their substance use expectations.

Material and methods

Data were collected from 682 families (N = 2,046) with two adolescent siblings (older siblings: M age = 15.67 years, 51% female; younger siblings: M age = 13.14 years, 48% female) and one parent (M age = 45.15 years; 85% female). Participants completed annual online surveys at two occasions. Older siblings reported on their cannabis and e-cigarette use frequencies (Time 1) and younger siblings reported on their substance use expectations (Time 1) and intentions (Time 1 and 2); parents reported on adolescents' sociodemographic characteris

SUBMITTER: Maiya S 

PROVIDER: S-EPMC10782623 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature