In secondary analyses examining trauma exposure and PTSD as binary variables, individuals with any trauma exposure had two to three times the odds of meeting criteria for ND and AD, respectively, while those with full or partial PTSD had two times the odds of meeting criteria for ND, nearly three times the odds of meeting criteria for MD, and three times the odds of meeting criteria for AD. These results suggest high risk for SUD for those with trauma exposure and PTSD. The odds ratios for the binary variables were larger than those for the graded variables because the effect for the former reflects the increase in odds based on the presence versus absence of trauma exposure or PTSD, while the effect of the latter reflects the increase in odds based on a one unit change in trauma exposure or PTSD symptoms. However, PTSD accounted for a smaller proportion of the relationship between TE and AD and ND (~24% for both) than PTSD symptom count accounted for in the association between TE load and AD (49.8%) and ND (37.9%). These
