Borderline personality disorder co-morbidity: relationship to the internalizing–externalizing structure of common mental disorders

Borderline personality disorder (BPD) shows high levels of co-morbidity with an array of psychiatric disorders. The meaning and causes of this co-morbidity are not fully understood. Our objective was to investigate and clarify the complex co-morbidity of BPD by integrating it into the structure of common mental disorders.We conducted exploratory and confirmatory factor analyses on diagnostic interview data from a representative US...