Depression in Disabling Illness: Severity and Patterns of Self-Reported Symptoms in Three Groups

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Abstract
The nature of association between depression and disabling illness, whether as an organic symptom or emotional consequence, has been the source of interest and controversy. Depression in three groups of medically ill, disabled patients (Parkinson's disease, right hemisphere stroke, and amputation) was studied. Mean depression severity and frequency of depression were equal for all groups. Severity of neurologic symptomatology was not consistently related to depression. Type of prosthesis, but not amputation type, was related to depression for amputees. Patterns of depression on discriminant analysis did differentiate the groups'. A depression symptom conglomerate suggesting guilt and body image change with fatigue characterized the Parkinson patients most and the amputees least. A second depression conglomerate suggesting indecisiveness and thoughts of death or self-harm characterized amputees most and stroke patients least. Depression as an emotional response may not be a singular, specific feature of disabling illness in general, given uniformity of prevalence and severity, but differential etiology in specific instances should be considered.

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