Dialectical Behavior Therapy vs Enhanced Usual Care for Suicidal and Self-harming Adolescents. 10 Year Follow-up

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Suicide attempts and non-suicidal self-harm, highly prevalent in adolescents, are behaviours strongly associated with severe emotion dysregulation, mental health problems and increased suicide risk. The original study, on which the present study is building, used a randomized controlled design, with...

Suicide attempts and non-suicidal self-harm, highly prevalent in adolescents, are behaviours strongly associated with severe emotion dysregulation, mental health problems and increased suicide risk. The original study, on which the present study is building, used a randomized controlled design, with a stratified block randomization procedure, and blinded pre-treatment, post-treatment and follow-up evaluations comparing 19weeks of DBT-A with EUC of equal length. Of special interest to this follow-up study is to gain more knowledge on their capacity to regulate emotions, since failures in emotion regulation is an underlying mechanism of repetitive self-harm behaviours and several other difficulties, and since a main aim of DBT-A is to enhance adolescents capacity to use healthy emotion regulation strategies. The study is designed to carefully include user and family perspectives on the definition of specific outcomes and how to measure them, we will collect detailed data on important outcomes employing a combination of quantitative and qualitative methods, innovative approaches such as ecological momentary assessment and register data. Adding new data to the existing rich data will give us a basis to study the dynamic interplay between symptoms, emotions, and functional and dysfunctional behaviours and make new discoveries of mechanisms of therapeutic change, knowledge to further increase treatment response rates and individualize treatments and to inform further development of this treatment and its implementation in Norway and other countries. The proposed study will investigate: the 10-year post-randomization treatment outcomes of DBT-A compared with EUC with respect to: a) frequency of subsequent episodes of self-harm, b) severity of suicidal ideation, c) level of depressive symptoms and d) frequency of subsequent emergency room visits, hospitalizations and use of additional treatments due to risk of self-harm behaviour. the 10-year post-randomization clinical course and stability of a diagnosis of BPD, its diagnostic criteria and borderline symptoms. participants' adult mental health, social, family and occupational functioning and quality of life. participants' adult strategies for and capacity to cope with stressful life-events and situations in their daily lives and effectively regulate emotions. the association between participants' adult life use of skills and functional coping strategies and self-harm behaviour and other problem behaviours, and whether any substitution from onedysfunctional coping behaviour to another has occurred. participants' evaluation of what components of the treatment was most helpful and led to the strongest and most persistent change in important functions and aspects of life. the economic cost of treatments consumed and functional impairment and occupational disability over the 10-year post-randomization period and the long-term cost-effectiveness of DBT-A.

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