“covert delinquency” factors have been reported [64]. Thus, future studies could inquire whether this composite can be further broken down to its constituents or whether the use of multiple indicators is the source of its predictive power. Third, the sample consisted of young adult Norwegians and generalizations to other populations or age groups should take appropriate caution. Fourth, we cannot exclude the possibility that study attrition affects the results to some extent, but attrition analyses indicate it is highly unlikely that the effect is large [24,33]. Of the 10 PDs, only ASPD and narcissistic PD predicted participation in wave 2, with non-participants having 0.09 sub-threshold criteria more than the participants; total number of Axis I disorders or any specific disorder were not predictive [24]. In addition, wave 2 lacked data for some of the PDs and included the same participants as in wave 1, meaning that only partial rather than full replications were attainable in variable selection. Fifth, even larger samples may reveal further AUD-predictive PD criteria with smaller effects. However, we believe the present findings are useful in pinpointing two especially salient criteria among the 80 potentially relevant behavioral criteria. Finally, while we demonstrated the AUD predictive value of