Data regarding the development of a structured interview measuring alterations that may accompany extreme stress are presented. A list of 27 criteria often seen in response to extreme trauma and not addressed by DSM-IV criteria for posttraumatic stress disorder (PTSD) were generated based on a systematic review of the literature and a survey of 50 experts. A structured interview for disorders of extreme stress (SIDES) measuring the presence of these criteria was administered to 520 subjects as part of the DSM-IV PTSD field trials. Inter-rater reliability as measured by Kappa coefficients for lifetime Disorders of Extreme Stress was .81. Internal consistency using coefficient alpha ranged from .53 to .96. Results indicate that the SIDES is a useful tool for investigation of response to extremes stress.
Two hundred thirty four participants in the DSM-IV Posttraumatic Stress Disorder (PTSD) Field Trial who reported sexual and/or physical abuse were evaluated. Participants were categorized according to type of abuse (physical, sexual, both), duration of abuse (acute versus chronic), and onset of abuse (early versus late). Separate logistic regression analyses examined the relationship between age of onset, duration, abuse type, and the complex PTSD (CP) lifetime diagnosis for women and men. Sexually abused women, especially those who also experienced physical abuse, had a higher risk of developing CP, although CP symptoms occurred at a high base rate among physically abused women. The theoretical implications and incremental clinical usefulness of targeting CP symptoms with abused populations are discussed.
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