Abstract
Objective
To compare selected characteristics (age, sex, age of onset for depression, impairment, severity of depression, somatic comorbidity, and treatment status) of adolescents with currently comorbid and non-comorbid depression.
Method
A sample of 218 consecutive adolescent (13–19 years) psychiatric outpatients with depressive disorders, and 200 age- and sex-matched school-attending controls were interviewed for DSM-IV Axis I and Axis II diagnoses.
Results
Current comorbidity, most commonly with anxiety disorders, was equally frequent (>70%) in outpatients and depressed controls. Younger age (OR 0.20; 95% CI 0.08, 0.51) and male gender (OR 0.02; 95% CI 0.09, 0.55) were associated with concurrent disruptive disorders. Current comorbidity with substance use disorders (SUD) was independent of age (OR 1.13; 95% CI 0.51, 2.49) and sex (OR 0.51; 95% CI 0.22, 1.17). Personality disorders associated with older age (OR 2.06; 95% CI 1.10, 3.86). In multivariable logistic regression analysis, impairment (GAF ≤60) was associated with current comorbidity (OR 3.13; 95% CI 1.53, 6.45), while severity of depression and lifetime age of onset for depression were not.
Conclusions
Adolescent depression presents with age- and sex-dependent patterns of multiple co-occurring problem areas. While many clinical characteristics of adolescent depression are not affected by comorbidity, comorbidity associates with increased impairment.
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Acknowledgements
This study has been supported by the Hospital District of University of Helsinki, the Peijas Hospital, the Yrjö Jahnsson Foundation, the Finnish Cultural Foundation, and the Finnish Psychiatric Association. We thank research assistant Mrs. Eevaliisa Orelma for her contribution in patient recruitment and data management.
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Karlsson, L., Pelkonen, M., Ruuttu, T. et al. Current comorbidity among consecutive adolescent psychiatric outpatients with DSM-IV mood disorders. Eur Child Adolesc Psychiatry 15, 220–231 (2006). https://doi.org/10.1007/s00787-006-0526-7
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DOI: https://doi.org/10.1007/s00787-006-0526-7