In order to determine the prevalence of psychiatric comorbidity in a population of young
heroin users recruited from outside of the healthcare context, a sample was assembled by
targeted sampling and nomination techniques; it was comprised of regular current users of
heroin aged between 18 and 30 years and resident in Barcelona, Spain. Psychiatric
evaluation was done with the Psychiatric Research Interview for Substance and Mental
Disorders (PRISM) semi-structured interview. Of 149 individuals evaluated, 33% were …