Suicidality in hospitalized patients with a primary diagnosis of personality disorder

In this investigation the frequency and clinical importance of suicidal behavior in patients with a primary diagnosis of personality disorder was studied. The sample was drawn from a group of over 8000 psychiatric inpatients admitted to a university psychiatric hospital. Only patients with a primary diagnosis of personality disorder were included. In the subgroup of 226 patients with this diagnosis, it was found that the rate of suicidality was almost as great as that of patients with a primary diagnosis of major affective disorder (39% as opposed to 41%), despite the absence in all but 3% of these patients of an additional diagnosis of affective disorder. Further, this figure was considerably higher than that for all psychiatric inpatients (24%). Suicidal patients had more suicide attempts in their history and had a more serious depressive syndrome, despite the fact that only 3% fulfilled the criteria for major affective disorder. The conclusion which can be drawn is that a high degree of suicidality should not be regarded as exclusively linked to a primary diagnosis of major affective disorder.