According to DSM-5, ASPD diagnosis can be given when “[t]here is evidence of conduct disorder with onset before age 15 years”. Conduct disorder is characterized by minimum of three items related to aggression to people and animals, destruction of property, deceitfulness or theft, and/or serious violations of rules. The BPD diagnosis requires at least five criteria out of nine being fulfilled, one of which can (but does not need to) be the criterion “BPD 4” worded as “[i]mpulsivity in at least two areas that are potentially self-damaging (e.g., spending, sex, substance abuse, reckless driving, binge eating)”, and not including “suicidal or self-mutilating behavior covered in Criterion 5”. However, ~67% of variance in the impulsivity criterion was independent of overall BPD in a previous factor analytic study of the same sample [28], and a psychometric analysis indicated differential age and sex moderation of the impulsivity criterion in comparison to overall BPD [26].
