Intake of Energy-Dense Foods, Fast Foods, Sugary Drinks, and Breast Cancer Risk in African American and European American Women
2014
Chandran, Urmila | McCann, Susan E. | Zirpoli, Gary | Gong, Zhihong | Lin, Yong | Hong, Chi-Chen | Ciupak, Gregory | Pawlish, Karen | Ambrosone, Christine B. | Bandera, Elisa V.
Limiting energy-dense foods, fast foods, and sugary drinks that promote weight gain is a cancer prevention recommendation, but no studies have evaluated intake in relation to breast cancer risk in African American (AA) women. In a case-control study with 1692 AA women (803 cases and 889 controls) and 1456 European American (EA) women (755 cases and 701 controls), odds ratios (OR) and 95% confidence intervals (CI) for risk were computed, stratifying for menopausal and estrogen receptor (ER) status. Among postmenopausal EA women, breast cancer risk was associated with frequent consumption of energy-dense foods (OR = 2.95; 95% CI: 1.66–5.22), fast foods (OR = 2.35; 95% CI: 1.38–4.00), and sugary drinks (OR = 2.05; 95% CI: 1.13–3.70). Elevated risk of ER+ tumors in EA women was associated with energy-dense (OR = 1.75; 95% CI: 1.14–2.69) and fast foods (OR = 1.84; 95% CI: 1.22–2.77). Among AA women, frequent fast food consumption was related to premenopausal breast cancer risk (OR = 1.97; 95% CI: 1.13–3.43), and with ER+ tumors. Energy adjustment attenuated risk estimates in AA women, while strengthening them among EA women. Frequent consumption of energy-dense and fast foods that have poor nutritive value appeared to increase breast cancer risk in AA and EA women, with differences by menopausal status and ER status.
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