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How, or even whether, to treat people who have some symptoms of post-traumatic stress disorder (PTSD) without meeting full criteria remains controversial. These researchers analyzed data from a WHO series of international, partially industry-funded, structured DSM-IV–based interviews (67,652 community-based respondents). The 23,936 participants in this analysis reported lifetime exposure to at least one trauma involving war, civilian physical assault, sexual assault, threats without violence (e.g., earthquakes), and threats to or traumatic death of loved ones. The researchers extrapolated DSM-5 criteria from the DSM-IV interviews to create and test several models of subthreshold illness.
The prevalence of DSM-5 PTSD was 3%. The prevalence of…