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Traumatic Events in Dual Disorders: Prevalence and Clinical Characteristics

Benito Menni Complex Assistencial en Salut Mental, Sant Boi de Llobregat, 08830 Barcelona, Spain
Department of Personality, Evaluation and Psychological Treatments, University of Barcelona, 08007 Barcelona, Spain
Centre Fòrum Research Unit, Institut de Neuropsiquiatria i Addiccions, Parc de Salut Mar, 08019 Barcelona, Spain
Hospital del Mar Medical Research Institute (IMIM), 08003 Barcelona, Spain
Institut de Neuropsiquiatria i Addiccions, Parc de Salut Mar, 08003 Barcelona, Spain
Imaging of Mood and Anxiety-Related Disorders (IMARD) group, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
Early Psychosis: Interventions and Clinical-detection (EPIC) Laboratory, Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London WC2R2LS, UK
Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet, Solna, 17177 Stockholm, Sweden
Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), 28029 Madrid, Spain
Department of Psychiatry, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
RETICS-Redes Temáticas de Investigación Cooperativa en Salud en Trastornos Adictivos, 08003 Barcelona, Spain
Author to whom correspondence should be addressed.
J. Clin. Med. 2020, 9(8), 2553;
Received: 6 July 2020 / Revised: 24 July 2020 / Accepted: 31 July 2020 / Published: 6 August 2020
Psychological trauma has been identified in substance use disorders (SUD) as a major etiological risk factor. However, detailed and systematic data about the prevalence and types of psychological trauma in dual disorders have been scarce to date. In this study, 150 inpatients were recruited and cross-sectionally screened on their substance use severity, psychological trauma symptoms, comorbidities, and clinical severity. One hundred patients fulfilled criteria for a dual disorder, while 50 patients were diagnosed with only SUD. Ninety-four percent of the whole sample suffered from at least one lifetime traumatic event. The prevalence rates of Posttraumatic Stress Disorder diagnosis for dual disorder and only SUD was around 20% in both groups; however, patients with dual disorder presented more adverse events, more childhood trauma, more dissociative symptoms, and a more severe clinical profile than patients with only SUD. Childhood maltreatment can also serve as a predictor for developing a dual disorder diagnosis and as a risk factor for developing a more complex and severe clinical profile. These data challenge our current clinical practice in the treatment of patients suffering from dual disorder or only SUD diagnosis and favor the incorporation of an additional trauma-focused therapy in this population. This may improve the prognosis and the course of the illness in these patients. View Full-Text
Keywords: psychological trauma; posttraumatic stress disorder; substance use disorders; dual diagnosis; prevalence psychological trauma; posttraumatic stress disorder; substance use disorders; dual diagnosis; prevalence
MDPI and ACS Style

Blanco, L.; Sió, A.; Hogg, B.; Esteve, R.; Radua, J.; Solanes, A.; Gardoki-Souto, I.; Sauras, R.; Farré, A.; Castillo, C.; Valiente-Gómez, A.; Pérez, V.; Torrens, M.; Amann, B.L.; Moreno-Alcázar, A. Traumatic Events in Dual Disorders: Prevalence and Clinical Characteristics. J. Clin. Med. 2020, 9, 2553.

AMA Style

Blanco L, Sió A, Hogg B, Esteve R, Radua J, Solanes A, Gardoki-Souto I, Sauras R, Farré A, Castillo C, Valiente-Gómez A, Pérez V, Torrens M, Amann BL, Moreno-Alcázar A. Traumatic Events in Dual Disorders: Prevalence and Clinical Characteristics. Journal of Clinical Medicine. 2020; 9(8):2553.

Chicago/Turabian Style

Blanco, Laura, Albert Sió, Bridget Hogg, Ricard Esteve, Joaquim Radua, Aleix Solanes, Itxaso Gardoki-Souto, Rosa Sauras, Adriana Farré, Claudio Castillo, Alicia Valiente-Gómez, Víctor Pérez, Marta Torrens, Benedikt L. Amann, and Ana Moreno-Alcázar. 2020. "Traumatic Events in Dual Disorders: Prevalence and Clinical Characteristics" Journal of Clinical Medicine 9, no. 8: 2553.

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