Latent class analysis of 945 depressed/suicidal youth identified three substance use patterns, with the highest-use group (12.7%) showing significantly more substance use disorders, ADHD, and higher suicidality scores.
People interested in the overlap between youth depression, suicidality, and substance use.
12.7% of depressed youth showed high-level polysubstance use
What the researchers found
Three substance use classes emerged: non-use (63.4%), moderate use of alcohol/nicotine/cannabis (23.8%), and high use of all substances (12.7%). The high-use class was more likely to have substance use disorders, ADHD, and higher suicidality scores. Both substance-using classes were older than non-users.
Why it matters
Understanding how substance use clusters among depressed youth can help clinicians identify who is at highest risk. The link between polysubstance use, ADHD, and suicidality suggests these youth need comprehensive assessment across multiple domains.
The numbers in context
945 youth. Three classes: non-use (63.4%), moderate (23.8%), high (12.7%). High-use class had more substance use disorders, ADHD, and higher suicidality. Both substance-using classes were older.
How the study worked
Cross-sectional analysis of 945 youth with depression and/or suicidality from the Texas Youth Depression and Suicide Research Network. Latent class analysis identified patterns of past-year alcohol, nicotine, cannabis, and other drug use. Demographics and psychiatric diagnoses were tested as predictors of class membership.
What this study cannot tell us
Cross-sectional design cannot determine temporal ordering. Texas-based sample may not represent other regions. Brief self-report substance measures may miss details. Cannot determine whether substances worsen or are driven by psychiatric symptoms.
How to read the evidence
Moderate-sized cross-sectional study from a clinical research network with structured assessment. Limited by cross-sectional design and single-state sample.
When this study was published
Published in 2024 in the Journal of Affective Disorders.
The bigger picture
Screening for substance use in depressed youth is not universal. This study shows that a meaningful minority (nearly 13%) of depressed/suicidal youth are using multiple substances at high rates, and these are the same youth with the most severe psychiatric profiles.
Questions still open
- Would universal substance screening in depressed youth improve outcomes? Does treating ADHD in polysubstance-using youth reduce their substance use? Are the substance use patterns stable over time or do they shift?
Common questions
How common is substance use among depressed teens?
Which youth were at highest risk?
Read the original research
Substance use patterns and mental health comorbidities in youth with a history of depression or suicidality: Findings from TX-YDSRN.
Journal of affective disorders, 366, 210-216
Citation
Clark, Shaunna L; Dodd, Cody G; Mitchell, Tarrah B; Ingram, Sarah J; Armstrong, Gabrielle M; Jha, Manish K; Soares, Jair C; Smith, Matt; Minhajuddin, Abu; Slater, Holli; Wakefield, Sarah M; Trivedi, Madhukar H. (2024). Substance use patterns and mental health comorbidities in youth with a history of depression or suicidality: Findings from TX-YDSRN.. Journal of affective disorders, 366, 210-216. https://doi.org/10.1016/j.jad.2024.08.128
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