Analysis of opium use by students of medical sciences.

Aims And Objectives: To investigate the prevalence of opium use in university students.

Background: University health professionals and authorities are very concerned about substance use among university students.

Design: A survey with a representative sample of 2519 (1126 men and 1393 women) university students and opium use disorders assessed by means of DSM-IV criteria (Diagnostic Statistical Manual-IV Axis I during the year 2003).