Examination of columns 5 and 6 shows that, of the 18 analyses, only three yielded estimates consistent with the assumption that the influence of predispositions on the risk of PTSD is weaker for sexual assault than lower-magnitude traumas, showing RRR <1.00 and p < 0.05. They are: pre-existing MDD in the comparison of sexual assault versus accidents and unexpected death of someone close, and pre-existing AUD in the comparison of sexual assault versus unexpected death. No other comparison supports a significantly weaker influence of predispositions on the risk of PTSD among victims of sexual assault, relative to victims of comparison traumas. Further, in regard to the parental variables, the evidence runs directly counter to the expectation of a weaker role of predispositions in relation to sexual assault in four analyses, showing RRR > 1.00 and p < 0.05. They are: parental drug abuse in the comparison of sexual assault versus disaster and all three parental variables in the comparison of sexual assault versus unexpected death of someone close (Table 3). Because of the small number of PTSD cases among victims
