Continuity Between Interview-Rated Personality Disorders and Self-Reported DSM–5 Traits in a Danish Psychiatric Sample

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Abstract

The Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM–5) Section III offers an alternative model for the diagnosis of personality disorders (PDs), including 25 pathological personality trait facets organized into 5 trait domains. To maintain continuity with the categorical PD diagnoses found in DSM–5 Section II, specified sets of facets are configured into familiar PD types. The current study aimed to evaluate the continuity across the Section II and III models of PDs. A sample of 142 psychiatric outpatients were administered the Personality Inventory for DSM–5 and rated with the Structured Clinical Interview for the DSM–IV Axis II disorders. We investigated whether the DSM–5 Section III facet-profiles would be associated with their respective Section II counterparts, as well as determining whether additional facets could augment the prediction of the Section II disorders. Results showed that, overall, the interview-rated DSM–5 Section II disorders were most strongly associated with expected self-reported Section III traits. Results also supported the addition of facets not included in the proposed Section III PD criteria. These findings partly underscore the continuity between the Section II and III models of PDs and suggest how it may be enhanced; however, additional research is needed to further evaluate where continuity exists, where it does not exist, and how the traits system could be improved.

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