Personality Disorders/epidemiology; Substance-Related Disorders/epidemiology; Adult; Alcoholism/diagnosis; Alcoholism/epidemiology; Antisocial Personality Disorder/diagnosis; Antisocial Personality Disorder/epidemiology; Cocaine-Related Disorders/diagnosis; Cocaine-Related Disorders/epidemiology; Cross-Sectional Studies; Depression/diagnosis; Depression/epidemiology; Diagnosis, Dual (Psychiatry); Female; Histrionic Personality Disorder/diagnosis; Histrionic Personality Disorder/epidemiology; Humans; Male; Marijuana Abuse/diagnosis; Marijuana Abuse/epidemiology; Obsessive-Compulsive Disorder/diagnosis; Obsessive-Compulsive Disorder/epidemiology; Opioid-Related Disorders/diagnosis; Opioid-Related Disorders/epidemiology; Paranoid Personality Disorder/diagnosis; Paranoid Personality Disorder/epidemiology; Personality Disorders/diagnosis; Prevalence; Spain/epidemiology; Substance Abuse Treatment Centers/statistics & numerical data; Substance-Related Disorders/diagnosis