Traumatic exposures were collected using the SSAGA57 and have been described previously.56,59 The SSAGA included 21 potentially traumatic events. Several events were excluded from the present study because they did not occur before 10 years of age (eg, combat-related trauma). All events used in the present analysis are presented in Table S1, available online. Based on evidence that interpersonal assaultive events have a stronger and more enduring effect on mental health/substance use than non-assaultive events,60–62 that traumatic events cluster together,63 and to remain consistent with prior studies,59 3 composite variables were examined, representing the report of at least 1 lifetime assaultive trauma (ie, stabbed, shot, mugged, threatened with a weapon, robbed, kidnapped, and held captive), non-assaultive trauma (ie, life-threatening accident, disaster, witnessing someone seriously injured or killed, and unexpectedly finding a dead body), or sexual assaultive trauma (ie, rape or molestation by relative or non-relative). Importantly, age at occurrence of each event was recorded, and this information was used in the present study. We focused on traumatic events occurring before 10 years of age, given the suggestion that trauma exposure
