Correlates of fatigue in survivors of breast cancer

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Abstract
The purpose of this report is to describe variables associated with fatigue for disease-free survivors of breast cancer. On the basis of Mishel's theory of illness uncertainty and the antecedents of uncertainty, a cross-sectional, descriptive, correlational design was used to examine (a) the relationship of fatigue with cancer-related variables and the presence of concurrent illness and (b) whether fatigue and educational level explained a significant proportion of the variation in illness uncertainty. The Mishel Uncertainty in Illness Scale (MUIS) and a single fatigue item on the McCorkle & Young Symptom Distress Scale were used as variable measures. Data were collected from 109 women 1 to 6 years after treatment for Stage I to III breast cancer with no known metastasis. Findings showed that low to moderate fatigue persisted for women, which was related significantly to the presence of concurrent illness. When concurrent illness was taken into account, fatigue was significantly related to treatment with chemotherapy, irrespective of length of time since treatment, age, disease stage, or tamoxifen use. Finally, fatigue and education level explained a significant level of the variation in illness uncertainty. Nurses can identify and assist women who are at risk for fatigue and illness uncertainty after treatment for breast cancer ends.

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