Articles: back-pain.
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Back pain
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The principal dimensions of the pain experience of 102 patients with chronic low back pain were studied and components of the pain experience were compared to pre-treatment measures of emotional disturbance. Responses on the McGill Pain Questionnaire (MPQ) were factor analyzed revealing dimensions of the pain experience that seemed to represent sensory, affective, and evaluative aspects. ⋯ The evaluation descriptive dimension was highly related to the overall intensity of the pain experience. Only the affective dimension was related to emotional disturbance separately from the effects of intensity alone.