Subtypes of Clients With Serious Mental Illness and Co-occurring Disorders: Latent-Class Trajectory Analysis

    loading  Checking for direct PDF access through Ovid

Abstract

Objective

This study identified and characterized groups of clients who have serious mental illness and co-occurring substance use disorders.

Methods

Substance abuse recovery of 177 clients with co-occurring disorders was followed for ten years with multiperspective ratings every six months. Latent-class trajectory analysis was used to identify subgroups; profile analysis was used to examine baseline risk factors and treatment participation.

Results

Two ratings of substance abuse recovery—stage of treatment and abstinence—were highly concordant and identified the same four groups: early recovery, unstable recovery, late recovery, and no recovery. The early-recovery group was characterized by less severe substance use disorders at baseline and by use of clozapine. The unstable-recovery group was too small for statistical analyses. The late-recovery group was similar to the no-recovery group at baseline but participated more extensively in treatments, especially residential dual-diagnosis programs, during the first three years of follow-up.

Conclusions

Latent-class trajectory analysis based on ten-year trajectories of substance abuse recovery identified clinically meaningful groups among clients with serious mental illness and co-occurring substance use disorders. Profiles of the three most common groups suggest differential clinical approaches for each.

Related Topics

    loading  Loading Related Articles