The classification of paranoid disorders in the elderly: a clinical problem.

Data on the incidence of Paranoid Disorders according to modified DSM-III criteria in an outpatient geriatric clinic are presented. Results are consistent with previous research data which find paranoid symptomatology to be common in elderly psychiatric patients. The current definition of paranoid disorders is too narrow to encompass those elderly with good premorbid adjustment whose later life paranoid disorders often include hallucinations. The DSM-III paranoid subtype system does not have a separate category for chronic paranoid symptomatology which, although commonly seen in the old, is now subsumed under an atypical paranoid disorder classification. Further research into late life psychopathology may provide refinement of other diagnostic categories and a better understanding of the developmental relationship between personality disorder and major psychopathology.