Pain in metastatic breast cancer

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Abstract
The pain experiences of 86 women with metastatic carcinoma of the breast were systematically evaluated over a period of one year. Fifty‐six percent of the sample reported experiencing pain, and the intensity of pain was not significantly related to site of metastasis. Multiple regression analysis revealed that 50% of the variance in the pain experience was accounted for by: (1) the amount of mood disturbance as measured by the Profile of Mood States (POMS); (2) the patients' belief that the pain indicated worsening of the illness; and (3) the use of analgesic medication. The nature of family support, social functioning, and coping responses were not significantly associated with pain intensity, nor was mortality during the one‐year follow‐up period. These data document the significance of psychological factors in accounting for differences in pain experience and document the interaction between pain and mood disturbance. These findings suggest that treatment of metastatic pain should include attention to the patient's mood and adjustment to the illness. Cancer 52:34‐345, 1983.

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