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The Relevance of Dual Diagnoses among Drug-Dependent Patients with Sleep Disorders

Psychiatry Service, University of Salamanca Health Care Complex, Paseo de San Vicente 58-182, 37007 Salamanca, Spain
Psychiatry Unit, School of Medicine, University of Salamanca, Campus Miguel de Unamuno C/ Alfonso X El Sabio s/n, 37007 Salamanca, Spain
Institute of Biomedicine, University of Salamanca, Paseo de San Vicente, 58-182, 37007 Salamanca, Spain
Psychiatry Service, Zamora University Health Care Complex, Hernán Cortés Street, 40, 49071 Zamora, Spain
Author to whom correspondence should be addressed.
J. Clin. Med. 2020, 9(9), 2862;
Received: 30 July 2020 / Revised: 31 August 2020 / Accepted: 1 September 2020 / Published: 4 September 2020
Background: Sleep disorders are often associated with drug use. Nearly 70% of patients admitted for detoxification report sleep problems. Dual disorder (DD) is the comorbidity between mental disorders in general and disorders related to psychoactive substance use. The association between substance use and sleep disorders (SD) appears to be bidirectional. Our objective is to analyze the association between sleep disturbance history and drug use pattern (alcohol, cannabis, opioids, and cocaine). Methods: Analysis of data in the first interview at the Addictions Unit of the Department of Psychiatry at the University of Salamanca Health Care Complex between October 2017 and January 2020. The sample consists of 398 patients. We studied the association between different variables: origin of patients (Inpatient Dual Diagnosis Detoxification Unit (IDDDU) vs. Outpatient Drug Clinic (ODC), presence of affective disorder, psychotic disorder, type of drug used, and treatment. Results: Of patients with DD, 62% had more delayed sleep induction, sleep fragmentation, early awakening, and nightmares. Outpatients had more difficulty falling asleep because, in many cases, they had not previously sought any medical assistance. On the other hand, 67% of the patients with insomnia presented depression. Conclusions: There is evidence of a harmful association between DD and SD. View Full-Text
Keywords: dual disorders (DD); insomnia; sleep disorders (SD); benzodiazepine use disorder (BUD) dual disorders (DD); insomnia; sleep disorders (SD); benzodiazepine use disorder (BUD)
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MDPI and ACS Style

Roncero, C.; García-Ullán, L.; Bullón, A.; Remón-Gallo, D.; Vicente-Hernández, B.; Álvarez, A.; Caldero, A.; Flores, A.; Aguilar, L. The Relevance of Dual Diagnoses among Drug-Dependent Patients with Sleep Disorders. J. Clin. Med. 2020, 9, 2862.

AMA Style

Roncero C, García-Ullán L, Bullón A, Remón-Gallo D, Vicente-Hernández B, Álvarez A, Caldero A, Flores A, Aguilar L. The Relevance of Dual Diagnoses among Drug-Dependent Patients with Sleep Disorders. Journal of Clinical Medicine. 2020; 9(9):2862.

Chicago/Turabian Style

Roncero, Carlos; García-Ullán, Llanyra; Bullón, Alberto; Remón-Gallo, Diego; Vicente-Hernández, Begoña; Álvarez, Ana; Caldero, Amaya; Flores, Andrea; Aguilar, Lourdes. 2020. "The Relevance of Dual Diagnoses among Drug-Dependent Patients with Sleep Disorders" J. Clin. Med. 9, no. 9: 2862.

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