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Published in: BMC Psychiatry 1/2021

Open Access 01-12-2021 | Behavioural Therapy | Research

Now and then: a ten-year comparison of young people in residential substance use disorder treatment receiving group dialectical behaviour therapy

Authors: Ely M. Marceau, Gabriella Holmes, Jane Cutts, Lauren Mullaney, Denise Meuldijk, Michelle L. Townsend, Brin F. S. Grenyer

Published in: BMC Psychiatry | Issue 1/2021

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Abstract

Background

Reducing substance use in youth is a global health priority. We compared two cohorts from the same 12-week residential substance use disorder (SUD) facility over a 10 year period: Cohort A (2008–2009) and Cohort B (2018–2020). The essential components of the program remained the same with the primary treatment being dialectical behaviour therapy (DBT) plus residential milieu.

Methods

Young people in the current Cohort B (N = 100) versus historical Cohort A (N = 102) had a similar ratio of males (74 vs. 70%) but were slightly older (mean 20.6 vs. 19.5 years). Linear mixed models were used to model outcome measures (global psychiatric symptoms, substance use severity, and quality of life) longitudinally up to 12 months later.

Results

Baseline to end-of-treatment comparisons showed that the current Cohort B had overall higher levels of global psychiatric symptoms (d = 0.70), but both groups reduced psychiatric symptoms (Cohort A: d = 1.05; Cohort B: d = 0.61), and had comparable increases in confidence to resist substance use (d = 0.95). Longitudinal data from the current Cohort B showed significant decreases in substance use severity from baseline to 6-month follow-up (d = 1.83), which were sustained at 12-month follow-up (d = 0.94), and increases in quality of life from baseline to end-of-treatment (d = 0.83).

Conclusions

We demonstrate how DBT plus milieu residential care for young people continues to show positive effects in a 10-year comparison. However, youth seeking treatment today compared to 10 years ago evidenced higher acuity of psychiatric symptoms reinforcing the importance of continuous improvement of psychological treatments.

Trial registration

Australian New Zealand Clinical Trials Registry: trial IDACTRN12618000866​202, retrospectively registered on 22/05/2018, .
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Metadata
Title
Now and then: a ten-year comparison of young people in residential substance use disorder treatment receiving group dialectical behaviour therapy
Authors
Ely M. Marceau
Gabriella Holmes
Jane Cutts
Lauren Mullaney
Denise Meuldijk
Michelle L. Townsend
Brin F. S. Grenyer
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2021
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-021-03372-2

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