The Clinical journal of pain
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Multicenter Study Comparative Study Clinical Trial
The utility of somatic items in the assessment of depression in patients with chronic pain: a comparison of the Zung Self-Rating Depression Scale and the Depression Anxiety Stress Scales in chronic pain and clinical and community samples.
To investigate the role of somatic items in the assessment of depression in chronic pain. ⋯ It was concluded that depression measures that give emphasis to somatic symptoms provide poor measures of depression severity in any individuals and in patients with chronic pain may lead to an overestimation of the severity of depression. More recently developed instruments avoid these limitations and are also better able to discriminate depression from related states such as anxiety and tension/stress.