Therapist and computer-based brief interventions for drug use within a randomized controlled trial: effects on parallel trajectories of alcohol use, cannabis use and anxiety symptoms.

ABSTRACT:

Background and aims

Despite their high comorbidity, the effects of brief interventions (BI) to reduce cannabis use, alcohol use and anxiety symptoms have received little empirical attention. The aims of this study were to examine whether a therapist-delivered BI (TBI) or computer-guided BI (CBI) to address drug use, alcohol consumption (when relevant) and HIV risk behaviors, relative to enhanced usual care (EUC), was associated with reductions in parallel trajectories of alcohol use, cannabis use and anxiety symptoms, and whether demographic characteristics moderated reductions over time.

Design

Latent growth curve modeling was used to examine joint trajectories of alcohol use, cannabis use and anxiety symptoms assessed at 3, 6 and 12 months after baseline enrollment.

Set

SUBMITTER: Drislane LE 

PROVIDER: S-EPMC6933089 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature