The 24-year course of major depression in patients with borderline personality disorder and personality-disordered comparison subjects.

BACKGROUND

This study had two main objectives. The first was to detail the prevalence of major depressive disorder over 24 years of follow-up for both patients with borderline personality disorder (BPD) and comparison subjects with other personality disorders (OPD). The second was to determine time-to-remission, recurrence, and new onset of major depression among these two groups of patients.

METHODS

The SCID-I was administered to 290 borderline inpatients and 72 personality-disordered comparison subjects during their index admission. It was also re-administered at 12 contiguous two-year follow-up periods.

RESULTS

The prevalence of major depression was significantly higher for borderline patients over time but declined significantly over time for those in both study groups. In terms of time to events, 93% of borderline patients meeting criteria for major depression at baseline experienced a two-year remission by the time of the 24-year follow-up. Recurrences were about as common (90% for those with remitted major depression). New onsets of major depression were also very common (86% for those without major depression during their index admission).

LIMITATIONS: Results may not pertain to less severely ill patients with BPD and those in less treatment.

CONCLUSIONS

Taken together, the results of this study suggest that the remitting-recurring course of major depression in borderline patients is very similar to the course of major depression in those with other types of personality disorder and those for whom major depression is their primary disorder.