by
Stepy —
September 15, 2014
- A population-based study found no association between wearing a bra and increased breast cancer risk with menopausal women, according to research by the American Association of Cancer Research. The study was published in the journal Cancer Epidemiology, Biomarkers & Prevention.
- “There have been some concerns that one of the reasons why breast cancer may be more common in developed countries compared with developing countries is differences in bra-wearing patterns,” said Lu Chen, MPH, a researcher in the Public Health Sciences Division at Fred Hutchinson Cancer Research Center and a doctoral student in the Department of Epidemiology at the University of Washington School of Public Health. “Given how common bra wearing is, we thought this was an important question to address,” she added.
- “Our study found no evidence that wearing a bra increases a woman’s risk for breast cancer. The risk was similar no matter how many hours per day women wore a bra, whether they wore a bra with an underwire, or at what age they first began wearing a bra,” said Chen.
- “There has been some suggestion in the lay media that bra wearing may be a risk factor for breast cancer. Some have hypothesized that drainage of waste products in and around the breast may be hampered by bra wearing. Given very limited biological evidence supporting such a link between bra wearing and breast cancer risk, our results were not surprising,” Chen continued.
- According to the authors of the study analyzes different bra-wearing habits compared to breast cancer risk using a very thorough epidemiological study design. “The findings provide reassurance to women that wearing a bra does not appear to increase the risk for the most common histological types of postmenopausal breast cancer,” the authors noted.
- The study participants were 454 women with invasive ductal carcinoma (IDC) and 590 women with invasive lobular carcinoma (ILC), which are the two most common subtypes of breast cancer. The study also included 469 women without breast cancer who served as the controls. All women were postmenopausal, from ages 55 to 74.
- The researchers conducted interviews to gather information like demographics, family history, and reproductive history. They also asked questions to assess bra-wearing patterns. This included bra size, band size, and amount of time per day and per week they wore bras.
- No aspect of bra-wearing was associated with increased risk of breast cancer.
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- REFERENCES:
- 1. “Research Finds No Association Between Wearing a Bra and Breast Cancer.” AACR. American Association for Cancer Research, 05 Sept. 2014. Web. 14 Sept. 2014.
- 2. “Bra Wearing Not Associated with Breast Cancer Risk: A Population-Based Case–Control Study.” Cancer Epidemiology, Biomarkers & Prevention. American Association for Cancer Research, 05 Sept. 2014. Web. 14 Sept. 2014.
