Personality Disorders in Elderly Inpatients With Major Depression.

We studied 154 patients with major depression, with and without personality disorder (PD), consecutively admitted to a geriatric unit and compared their characteristics and responses to acute inpatient treatment. Thirty-seven patients (24%) met DSM-III-R criteria for PD. PD not otherwise specified and dependent PD were the most frequent PD diagnoses, whereas dramatic cluster PDs were rare. Patients with PD were significantly more likely to have had 1) recurrent depression, 2) an earlier age at first episode, and 3) a concurrent anxiety disorder. There was a higher proportion of patients with PD to have 1) never married, 2) separated or divorced, or 3) attempted suicide. During inpatient stays of similar lengths, both groups received similar treatment and improved to a similar and significant extent.