Interpersonal trauma was defined as being the victim of an attempted or actual physical attack, sexual assault, or abduction. The broader definition of childhood trauma included witnessing violence or involvement in a serious accident, in addition to interpersonal trauma. Endorsement of any qualifying event by either parent or child in a given year resulted in the coding of trauma as present in that year. Age at first exposure was calculated as the age at first endorsement of a qualifying event. Participants who endorsed a qualifying event at any age were categorized as positive for history of childhood trauma.