Method
addictive disorders, HCV, HIV), substance use disorders, mental disorder, mental disorders, DSM-5
DISORDERS
An observational, cross-sectional, multicentre study, with a random sample of patients undergoing treatment for addictive disorders or other mental disorders throughout Spain (The study population was people receiving treatment in mental health or addiction care networks in Spain who were aged over 18 years and had a diagnosis of substance use or other mental disorder at the time of the survey. The diagnoses were performed following the ICD-10 or DSM-5 criteria and were already in their medical records or were made by the professionals treating them and participating in the study. Non-probabilistic, convenience, and consecutive sampling was used. Sample bias was reduced by conducting the survey on the same day each week for four consecutive weeks on all patients attending the professional’s office that day (considering it this way as a randomized sampling).The variables studied were sociodemographic (age, sex/gender, employment status, living arrangements), related to somatic pathologies (HBV, HCV, HIV), substance use disorders (ICD 10: F10–F19), other mental disorders (ICD 10: F00–F09 and F20–F99), and psychopharmaceuticals prescribed both for the SUD (opioid agonists/opioid antagonists/disulfiram) and for the OMD (antipsychotics/mood stabilizers/antidepressants), and anxiolytics (considered treatments in both groups). Data collection was carried out in fifteen of the seventeen regions of Spain. Differences between male/female were searched.Descriptive and inferential statistics were performed. Pearson’s chi-square (bilateral asymptotic significance) was used for the latter, with Fisher’s exact test (bilateral exact significance) for qualitative and dichotomized quantitative variables. The confidence interval was set at 95%. The SPSS program (version v. 23) was used for data processing.The study was carried out in accordance with the ethical principles of the Declaration of Helsinki. All subjects consented in participate in the study.