Comorbidity of posttraumatic stress disorder and alcohol dependence in displaced persons.

AIM: To investigate in displaced persons a) the prevalence rate of current posttraumatic stress disorder (PTSD) and alcohol dependence; b) the relationship of alcohol dependence and current PTSD; and c) trauma exposure in relation to alcohol dependence comorbid to PTSD.

METHODS: A group of displaced persons (157 men and 211 women) was interviewed using structured clinical interview based on DSM-III-R criteria for diagnosing PTSD and alcohol dependence, Watson's PTSD Questionnaire, and CAGE Questionnaire.

RESULTS: Men showed higher prevalence rate of a current PTSD (50.3% of men vs. 36.5% of women, p=0.011), alcohol dependence (60.5% of men vs. 8.1% of women, p<0. 001), and alcohol dependence comorbid with PTSD (69.6% of men vs. 11. 7% of women, p<0.001). The rate of alcohol dependence increased in relation to current PTSD in men but not in women. Comorbidity of alcohol dependence and PTSD in women was influenced by alcohol-related problems before the war, whereas in men it was not influenced by any of the pre-war variables. The highest number of traumas was experienced by the displaced persons with a current PTSD only, followed by those with PTSD and alcohol dependence. The lowest number of war traumas was experienced by displaced persons with alcohol dependence, but without current PTSD.

CONCLUSION: War traumas may have a role in the development of alcohol dependence in displaced men with current PTSD. The number of war traumas had a strong effect on the development of PTSD. Sex is a relevant factor in studying comorbidity of current PTSD and alcohol dependence.