[Diagnosis of depression in the elderly. The "Geriatric Depression Scale"].

Psychiatric diseases are very common among elderly people. Depressions rank before dementias in this age group. 2-2.5 million people aged over 65 years are suffering from symptoms of depression in Germany. Patients with Mayor Depression Disease (MDD) have a poor prognosis. MDD should therefore be recognized and treated in community dwelling elderly, in nursing homes and in hospitals. Underdiagnosis of MDD is well documented in the medical literature. Only a quarter of patients with a MDD are detected. By a short screening test for depression such as the Geriatric Depression Scale (GDS) depressed patients can be identified. With a sensitivity and specificity of about 70%. The time needed to perform the short form of the GDS is only 5-7 min. The GDS is an important part of many assessment programs in England and USA. It is also recommended in Germany by the "Geriatric Assessment" working group.