Trauma exposure history was assessed using a checklist of traumatic events adapted from the Revised Diagnostic Interview Schedule (Robins et al., 1985) used in the National Comorbidity Survey (Kessler et al., 1995). Prior to the interview, respondent booklets that included a list of traumatic events were mailed and participants were asked whether they had experienced each of the traumatic events listed. If a trauma was endorsed, the age at first experience of each was queried. Traumatic experiences included SA, PA, witnessing injury or death, life threatening accident, and natural disaster. Childhood SA and Childhood PA were queried with additional behavioral descriptions of experiences. Endorsement of one or more questions was coded as a positive for SA or PA respectively (see Supplemental Table 1). Ages of onset were defined as age of first reported experience for each event.
