Social and Behavioral Sciences Commons^™

Trajectories Of Substance Use Disorders In Youth: Identifying And Predicting Group Memberships, Chih-Yuan Lee, Ken C. Winters, Melanie M. Wall

Department of Family Science and Human Development Scholarship and Creative Works

This study used latent class regression to identify latent trajectory classes based on individuals' diagnostic course of substance use disorders (SUDs) from late adolescence to early adulthood as well as to examine whether several psychosocial risk factors predicted the trajectory class membership. The study sample consisted of 310 individuals originally recruited as children in a long-term prospective study. Diagnoses of alcohol or cannabis use disorders (abuse or dependence) were assessed when individuals were 18 (T1), 20 (T2), and 22 (T3) years old. The results showed that two trajectory classes were identified for both alcohol and cannabis use disorder cases and …