Full and partial posttraumatic stress disorder: findings from a community survey

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Abstract
OBJECTIVE: Full and partial posttraumatic stress disorder (PTSD) following trauma exposure were examined in a community sample in order to determine their prevalence and their relative importance and functional significance. METHOD: A standardized telephone interview with a series of trauma probes and a DSM-IV PTSD checklist was administered to a random sample of 1,002 persons in a midsized Midwestern Canadian city. The authors determined current (i.e., 1- months) prevalence rates of full PTSD, i.e., all DSM-IV criteria, and partial PTSD, i.e., fewer than the required number of DSM-IV criterion C symptoms (avoidance/numbing) or criterion D symptoms (increased arousal). Additional questions about interference with functioning were also posed. RESULTS: The estimated prevalence of full PTSD was 2.7% for women and 1.2% for men. The prevalence of partial PTSD was 3.4% for women and 0.3% for men. Interference with work or school was significantly more pronounced in persons with full PTSD than in those with only...