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Discovering the causes of cancer and the means of prevention

NCI Cancer Prevention and Control Colloquia Series:
Gretchen Gierach

Is Breast Density a Biomarker of Breast Cancer Risk and Outcomes?



Gretchen L. Gierach, Ph.D., M.P.H.
Investigator, Hormonal and Reproductive Epidemiology Branch
Division of Cancer Epidemiology and Genetics
National Cancer Institute


Dr. Gretchen Gierach earned both her M.P.H. (2004) and Ph.D. (2006) degrees in epidemiology from the University of Pittsburgh with a focus in cancer epidemiology and women's health. Dr. Gierach joined the Hormonal and Reproductive Epidemiology Branch of NCI's Division of Cancer Epidemiology and Genetics (DCEG) as an NCI Cancer Prevention Fellow in 2006 and as an investigator in 2010. Throughout her scientific training and now as a tenure-track investigator at NCI, Dr. Gierach has developed an interdisciplinary breast cancer research program, the goal of which is to increase our understanding of the mechanisms that mediate the substantial breast cancer risk associated with mammographic breast density. She has been awarded the DCEG Molecular Epidemiology Research Funding Award, the NCI Merit Award in Cancer Prevention Research Training, and an NIH Award to Advance Research on Cancers in Women.