Weight loss, diet composition and breast cancer incidence and outcome in postmenopausal women

Kathy Pan; Juhua Luo; Aaron K. Aragaki; Rowan T. Chlebowski

doi:10.18632/oncotarget.26864

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Research Perspectives:

Weight loss, diet composition and breast cancer incidence and outcome in postmenopausal women

Kathy Pan _, Juhua Luo, Aaron K. Aragaki and Rowan T. Chlebowski

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Oncotarget. 2019; 10:3088-3092. https://doi.org/10.18632/oncotarget.26864

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Abstract

Kathy Pan1, Juhua Luo2, Aaron K. Aragaki3 and Rowan T. Chlebowski1

1Department of Medical Oncology and Hematology, Los Angeles Biomedical Research Institute, Torrance, CA, USA

2Department of Epidemiology and Biostatistics, Indiana University Bloomington, Bloomington, IN, USA

3Department of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA

Correspondence to:

Kathy Pan, email: [email protected]

Keywords: breast cancer; obesity; weight loss; waist circumference; Women's Health Initiative

Received: January 17, 2019 Accepted: March 23, 2019 Published: May 03, 2019

ABSTRACT

Two complementary studies in separate components of the Women’s Health Initiative (WHI) examined relationships among weight loss, diet composition and breast cancer incidence and outcome in postmenopausal women. In the WHI Observational Study, 61,335 postmenopaus al women had their weight change determined over a 3-year period with subsequent follow-up. Women with weight loss greater than or equal to 5% had significantly lower breast cancer incidence compared to women with stable weight. In the WHI Dietary Modification randomized clinical trial involving 48,835 postmenopausal women, implementation of a low-fat eating pattern significantly reduced deaths after breast cancer. Thus, moderation regarding dietary composition and body weight maintenance can reduce a postmenopausal woman’s risk of being diagnosed with breast cancer and of dying after breast cancer.

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Research Perspectives:

Weight loss, diet composition and breast cancer incidence and outcome in postmenopausal women

Abstract