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Emotional distress and dysfunctional illness perception are associated with low mental and physical quality of life in Chinese breast cancer patients.

Emotional distress and dysfunctional illness perception are associated with low mental and physical quality of life in Chinese breast cancer patients.
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Tang L, Fritzsche K, Leonhart R, Pang Y, Li J, Song L, Fischer I, Koch M, Wuensch A, Mewes R, Schaefert R,


Tang L, Fritzsche K, Leonhart R, Pang Y, Li J, Song L, Fischer I, Koch M, Wuensch A, Mewes R, Schaefert R, (click to view)

Tang L, Fritzsche K, Leonhart R, Pang Y, Li J, Song L, Fischer I, Koch M, Wuensch A, Mewes R, Schaefert R,

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Health and quality of life outcomes 2017 12 0115(1) 231 doi 10.1186/s12955-017-0803-9
Abstract
BACKGROUND
To evaluate the relationship between quality of life (QOL) and physical as well as psychological variables in Chinese breast cancer patients.

METHODS
This multicenter cross-sectional study enrolled 254 Chinese breast cancer patients in different stages and treatment phases. They answered standard instruments assessing QOL (EORTC), somatic symptom severity (PHQ-15), depression (PHQ-9), anxiety (GAD-7), health-related anxiety (WI-7), illness perception (BIPQ), and sense of coherence (SOC-9). Canonical correlation was applied to identify the strongest correlates between the physical, emotional and social QOL scales and the physical and psychological variables.

RESULTS
In our sample, a low global QOL was significantly associated with the following physical and psychological variables: symptom-related disability (Karnofsky Index) (r = .211, p < .01), somatic symptom severity (r = -.391, p < .001), depression (r = -.488, p < .001), anxiety (r = -.439, p < .001), health-related anxiety (r = -.398, p < .001), dysfunctional illness perception (r = -.411, p < .001), and sense of coherence (r = .371, p < .001). In the canonical correlation analysis, high somatic symptom severity, depression, anxiety, dysfunctional illness perception, and low sense of coherence showed the strongest correlations with low physical, emotional and social functioning. The first three significant canonical correlations between these two sets of variables were .78, .56, and .45. CONCLUSIONS
QOL in Chinese breast cancer patients is strongly associated with psychological factors. Our results suggest that Chinese physicians and nurses should incorporate these factors into their care for women with breast cancer to improve patients’ QOL.

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