Journal
PSYCHO-ONCOLOGY
Volume 20, Issue 10, Pages 1084-1091Publisher
WILEY-BLACKWELL
DOI: 10.1002/pon.1816
Keywords
breast cancer; oncology; quality of life; survival
Funding
- National Breast Cancer Foundation
- NHMRC [CDA-553024]
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Objective: To describe quality of life (QOL) over a 12-month period among women with breast cancer, consider the association between QOL and overall survival (OS), and explore characteristics associated with QOL declines. Methods: A population-based sample of Australian women (n = 287) with invasive, unilateral breast cancer (Stage I+) was observed prospectively for a median of 6.6 years. QOL was assessed at 6, 12, and 18 months post-diagnosis, using the Functional Assessment of Cancer Therapy, Breast (FACT-B+4) questionnaire. Raw scores for the FACT-B+4 and subscales were computed and individuals were categorized according to whether QOL declined, remained stable or improved between 6 and 18 months. Kaplan-Meier and Cox proportional hazards survival methods were used to estimate OS and its associations with QOL. Logistic regression models identified factors associated with QOL decline. Results: Within FACT-B+4 subscales, between 10% and 23% of women showed declines in QOL. Following adjustment for established prognostic factors, emotional well-being and FACT-B+4 scores at 6 months post-diagnosis were associated with OS (p < 0.05). Declines in physical (p < 0.01) or functional (p = 0.02) well-being between 6 and 18 months post-diagnosis were also associated significantly with OS. Receiving multiple forms of adjuvant treatment, a perception of not handling stress well and reporting one or more other major life events at 6 months post-diagnosis were factors associated with declines in QOL in multivariable analyses. Conclusions: Interventions targeted at preventing QOL declines may ultimately improve quantity as well as quality of life following breast cancer. Copyright (C) 2010 John Wiley & Sons, Ltd.
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