Background: Although major depression commonly occurs in medically ill
patients, it can be difficult to diagnose since depression and many m
edical illnesses share common physical symptoms. Methods: This study w
as designed to evaluate patients with end-stage renal disease (ESRD) f
or major depressive disorder using three diagnostic approaches, to ass
ess the Beck Depression Inventory as a screening instrument for major
depression, and to examine the association of anhedonia with a diagnos
is of major depression in ESRD patients who deny depressed mood. Resul
ts: Rates of major depression varied from 6 to 34% according to the cr
iteria that were used. The sensitivity of the Beck Depression Inventor
y was found to be modest. Anhedonia was a helpful clue for diagnosing
depression in patients who denied depressed mood. Conclusions:The find
ings illustrate the current difficulties in applying DSM criteria for
major depression to medical patients and underscore the need for more
specific guidelines.