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Sugar-sweetened soda consumption and total and breast cancer mortality: The western new york exposures and breast cancer (WEB) study

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Background: There is growing evidence of an association between sugar-sweetened beverages (SSB) and increased risk of mortality in various populations. However, SSB influence on mortality among patients with breast cancer is unknown. Methods: We assessed the relationship between sugar-sweetened soda and both all-cause and breast cancer mortality among women with incident, invasive breast cancer from the Western New York Exposures and Breast Cancer Study. Breast cancer cases were followed for a median of 18.7 years, with ascertainment of vital status via the National Death Index. Frequency of sugar-sweetened soda consumption was determined via dietary recall using a food frequency questionnaire. Cox proportional hazards, adjusting for relevant variables, were used to estimate HRs and 95% confidence intervals (CI). Results: Of the 927 breast cancer cases, 386 (54.7%) had died by the end of follow-up. Compared with never/rarely sugar-sweetened soda drinkers, consumption at ≥5 times per week was associated with increased risk of both total (HR ¼ 1.62; 95% CI, 1.16–2.26; Ptrend < 0.01) and breast cancer mortality (HR ¼ 1.85; 95% CI, 1.16–2.94; Ptrend < 0.01). Risk of mortality was similarly increased among ER-positive, but not ER-negative patients; among women with body mass index above the median, but not below the median; and among premenopausal, but not postmenopausal women for total mortality only. Conclusions: Reported higher frequency of sugar-sweetened soda intake was associated with increased risks of both total and breast cancer mortality among patients with breast cancer. Impact: These results support existing guidelines on reducing consumption of SSB, including for women with a diagnosis of breast cancer.




Koyratty, N., McCann, S. E., Millen, A. E., Nie, J., Trevisan, M., & Freudenheim, J. L. (2021). Sugar-sweetened soda consumption and total and breast cancer mortality: The western new york exposures and breast cancer (WEB) study. Cancer Epidemiology Biomarkers and Prevention, 30(5), 945–952.

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