The authors used the Center for Epidemiological Studies Depression Scale
to measure the level of depressive symptoms in a self-referred clinic
population whose socioeconomic status was low. They found that the
population suffered a high degree of depression and that the diagnosis of
major affective syndrome predominated. The depression scale used was found
to be a good indicator of probable depression in this population. The
authors suggest further investigation of the linkage between socioeconomic
status and affective disorder.