Consistent with the limited extant literature linking cannabis involvement and trauma exposure, for both AA and EA women, we found trauma exposure increased the hazard for cannabis initiation − although the trauma type conferring the risk was not consistent across races. With the exception of physical abuse in EA women, the increase in hazard associated with each trauma exposure did not persist when transitioning to first CUD symptom. These findings build on previous research (Cougle et al., 2011; Kevorkian et al., 2015; Sartor et al., 2015) by examining the effects of trauma exposure types and considering the transition to first CUD problem from cannabis initiation as opposed to starting our analyses at birth. By doing so, we were able to parse out the effects of trauma exposures on cannabis use from those on conditional progression to first CUD symptom. The current findings suggest, in general, trauma exposure may most strongly impact initiation of cannabis use with diminished associations at more pathological levels of use. Our findings further previous reports by Kevorkian and colleagues (2015) who suggested a graduated relationship between
