Adolescent subthreshold-depression and anxiety: Psychopathology, functional impairment and increased suicide risk

Judit Balázs, Mõnika Miklõsi, Ágnes Keresztény, Christina W. Hoven, Vladimir Carli, Camilla Wasserman, Alan Apter, Julio Bobes, Romuald Brunner, Doina Cosman, Pádraig Cotter, Christian Haring, Miriam Iosue, Michael Kaess, Jean Pierre Kahn, Helen Keeley, Dragan Marusic, Vita Postuvan, Franz Resch, Pilar A. SaizMerike Sisask, Avigal Snir, Alexandra Tubiana, Airi Varnik, Marco Sarchiapone, Danuta Wasserman

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Subthreshold-depression and anxiety have been associated with significant impairments in adults. This study investigates the characteristics of adolescent subthreshold-depression and anxiety with a focus on suicidality, using both categorical and dimensional diagnostic models. Methods: Data were drawn from the Saving and Empowering Young Lives in Europe (SEYLE) study, comprising 12,395 adolescents from 11 countries. Based on self-report, including Beck Depression Inventory-II (BDI-II), Zung Self-Rating Anxiety Scale (SAS), Strengths and Difficulties Questionnaire (SDQ) and Paykel Suicide Scale (PSS) were administered to students. Based on BDI-II, adolescents were divided into three groups: nondepressed, subthreshold-depressed and depressed; based on the SAS, they were divided into nonanxiety, subthreshold-anxiety and anxiety groups. Analyses of Covariance were conducted on SDQ scores to explore psychopathology of the defined groups. Logistic regression analyses were conducted to explore the relationships between functional impairments, suicidality and subthreshold and full syndromes. Results: Thirty-two percent of the adolescents were subthreshold-anxious and 5.8% anxious, 29.2% subthreshold-depressed and 10.5% depressed, with high comorbidity. Mean scores of SDQ of subthreshold-depressed/ anxious were significantly higher than the mean scores of the nondepressed/nonanxious groups and significantly lower than those of the depressed/anxious groups. Both subthreshold and threshold-anxiety and depression were related to functional impairment and suicidality. Conclusions: Subthreshold-depression and subthreshold-anxiety are associated with an increased burden of disease and suicide risk. These results highlight the importance of early identification of adolescent subthreshold-depression and anxiety to minimize suicide. Incorporating these subthreshold disorders into a diagnosis could provide a bridge between categorical and dimensional diagnostic models.

Original languageEnglish
Pages (from-to)670-677
Number of pages8
JournalJournal of Child Psychology and Psychiatry and Allied Disciplines
Volume54
Issue number6
DOIs
StatePublished - Jun 2013

Keywords

  • Categorical diagnostic model
  • SEYLE
  • adolescent
  • dimensional diagnostic model
  • subthreshold-anxiety
  • subthreshold-depression
  • suicide

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