Mammographic Density Study

Mammographic density is one of the strongest risk factors for breast cancer. Mammographic density is measured from mammograms of a woman breast. The amount of dense and non-density tissue a woman has varies and is a strong risk factor for breast cancer. Women of the same age with large amounts of dense area are more likely to develop breast cancer than women with little or no density.  Mammographic density is influenced by age and also environmental and genetic factors. Identifying factors linked to density will increase our understanding of breast cancer.

One factor thought to be important in the amount of density a woman has is early life growth. The TAHS study, has information on early-life growth so we are now collecting information from all female participants on their mammograms.