Do patients with borderline personality disorder belong to the bipolar spectrum?

Background: This report examines clinical indicators for bipolarity in a cohort of patients suffering from Borderline Personality Disorder (BPD).

Methods: The study was conducted in the Cornell-Westchester Hospital, famed for its expertise in BPD. To avoid biasing our sample, we excluded all BPD patients who were active patients in our anxiety and mood disorders program.