The Effect of Borderline Personality Disorder on the Hospital Course of Affective Illness

Two groups of patients with affective disorders, one group with a coexistent axis II diagnosis of borderline personality disorder and one group without, were compared to determine if the presence of borderline personality disorder affects the hospital course of patients with affective illness. Response to hospital treatment was assessed using standard psychiatric rating scales administered at admission, after one week of hospitalization, and before discharge. Although the patients with borderline personality disorder were more severely impaired than the comparison group, they were as likely as patients without the disorder to improve over the course of hospitalization.