Fowler JC, et al. - In the present study, the researchers examined the relative clinical utility of DSM 5 alternative model in screening for borderline personality disorder (BPD). They suggested the use of SCID-II Questionnaire (SCID-II-PQ) and Personality Inventory for DSM5 (PID-5) BPD algorithm for screening purposes and also supported the accuracy of the DSM 5 alternative model Criteria B trait constellation for diagnosing BPD. However, limitations of the study include the single inpatient setting and use of two discrete samples to assess PID-5 and SCID-II-PQ.

Methods

• In the study presented here, receiver operator characteristics and diagnostic efficiency statistics were calculated for three personality measures to ascertain the relative diagnostic efficiency of each measure.
• An aggregate of 1,653 adult inpatients at a specialist psychiatric hospital completed SCID-II interviews.
• Sample 1 (n=653) completed the SCID-II interviews, SCID-II Questionnaire (SCID-II-PQ) and the Big Five Inventory (BFI).
• Sample 2 (n=1,000) completed the SCID-II interviews, Personality Inventory for DSM5 (PID-5) and the BFI.

Results

• According to the findings obtained, BFI measure evidenced moderate accuracy for 2 composites: High Neuroticism+ low agreeableness composite (AUC = .72, SE = .01, p < .001) and High Neuroticism+ Low Agreeableness + Low Conscientiousness (AUC = .73, SE = .01, p < .0001).
• Findings revealed that the SCID-II-PQ evidenced moderate-to-excellent accuracy (AUC = .86, SE = .02, p < .0001) with a good balance of specificity (SP=.80) and sensitivity (SN=.78).
• It was noted that the PID-5 BPD algorithm (consisting of elevated emotional lability, anxiousness, separation insecurity, hostility, depressivity, impulsivity, and risk taking) evidenced moderate-to-excellent accuracy (AUC = .87, SE = .01, p <.0001) with a good balance of specificity (SP=.76) and sensitivity (SN=.81).