“…Battaglia et al [19,54] included an additional self-report measure (which was used to cross-validate interview diagnosis), three studies included two semi-structured interviews assessing BPD [26•, 27, 28], and one study relied on a consensus diagnosis by two separate interviewers [20]. Five of the studies assessed only inpatients being treated for BPD [19,20,25,27,28,54]; one included eight inpatients and two outpatients [21], three consisted of all outpatients [18, 23, 26•], one consisted of all inmates in a psychiatric facility accused of violent crimes [29], and two did not specify this information [12•, 30]. The studies were conducted in the USA and Europe, with one in Egypt [23].…”