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Posttraumatic stress disorder, Prevalence, Students, Traumatic events



  1. Ghanizadeh, Ahmad MD
  2. Tavassoli, Maryam MD


This study surveys the prevalence of exposed traumatic events and posttraumatic stress disorder among the high school students.


A total of 735 students were selected by stratified cluster sampling. The self-report trauma checklists and Mississippi Scale were used.


The most common traumatic experiences were "witnessing or being in a bad car accident," "getting some really bad news unexpectedly," and witnessing violence. The last 2 experiences were more common among girls. The rate of the subjects who scored more than the cutoff point in the Mississippi Scale was 27.2%.


There is an extremely high rate of exposed trauma rate, and approximately one third of them have posttraumatic stress disorder symptoms.