Genetic and environmental determinants of volumetric mammographic density: A biomarker of breast cancer risk

Abstract

Breast cancer is a major cause of early death and disability in Australian women. Breast density, a characteristic of women's breast that can be mesured by mammograms such as those conducted by BreastScreen, has been shown by a number of large studies to be a major risk factor for breast cancer. It is a characteristic that cannot be measured by breast examination, but is very well measured by a breast scan. Although breast density decreases with age at and after menopause, there is a large difference in breast density across women of the same age. Identifying the reasons why women of the same age differ so much in breast density will lead to a better understanding of the causes of breast can..

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