Objectives : This study was designed to assess the epidemiology of DSM-IV posttraumatic stress disorder(PTSD), including information on lifetime and current prevalence, the kinds of traumas most often associated with PTSD, and sociodemographic correlates.
Method : For this survey, an urban area with total population of 611,921 persons was chosen. Modified version of traumatic event checklist and Clinician Administered PTSD Scale were administrated to a representative sample of 850 persons aged 15 to 65 years above through home visiting.
Results : The lifetime and current prevalence of PTSD in survey area was 4.71% and 2.12%. the lifetime and current prevalence in male and female were of no significant statistical differences(p>.05). And the lifetime prevalence by age, and education were of no significant statistical differences. Only the lifetime prevalence by marital status was of significant statistical differences(p<.001). The lifetime prevalence to any traumatic exposure was 78.79%. Sudden unexpected death of a close person was the most prevalent traumatic event(51.06%). Among the traumas, natural disaster, fire and explosion, motor vehicle accident, serious accident at work or home, physical assault, assault with a weapon, combat, life-threatening illness, and serious injury to death you caused to someone else were more commonly associated with male sex, and sexual assault was more commonly associated with female sex. The traumas commonly associated with PTSD were natural disaster, fire and explosion, motor vehicle accident, serious accident at work or home, physical assault, sexual assault, combat, and life-threatening illness.
Conclusion : The lifetime and current prevalence in survey area were lower than those of previous studies. This study found differences between men and women on the type of trauma experienced, and the type of trauma associated with PTSD. Future epidemiological studies to assess PTSD from all lifetime traumas rather than from only a small number of retrospectively reported ones will be required, and larger sample size covering the country will be required for better estimation.
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