Depression's impact on survival in patients with cancer.

Healthcare professionals spend a great deal of time evaluating prognostic indicators to improve the treatment and survival of patients. With the building evidence that depression is an independent prognostic factor, they should look to do what those in cardiology are attempting--intervention trials to treat depression and lower its risk. As patient advocates, oncology nurses should look at their practice and make sure they incorporate psychosocial assessment as a standard component of cancer care.