Ruth Etzioni, Ph.D.

  • Interim Codirector; Distinguished Scientist, CEDAR, OHSU Knight Cancer Institute, School of Medicine


Ruth Etzioni is a biostatistician whose research centers on addressing evidence gaps that inevitably arise in medical decision making and health policy development. She is a full member of biostatistics at the Fred Hutchison Cancer Research Center in Seattle and affiliate faculty in the Department of Biostatistics at the University of Washington. Her population models of cancer progression and survival have been used to project long-term harms and benefits of prostate cancer screening, reconcile apparently conflicting clinical studies, and demonstrate that most published estimates of overdiagnosis in breast and prostate cancer screening cannot be trusted. Her current research focuses on risk stratification as a path to making early detection sustainable as an approach to a cancer control. She is a member of three national panels on early detection in cancer, a fellow of the American Statistical Association and the chair of its Health Policy Statistics Section. Ruth Etzioni earned her Ph.D. in statistics from Carnegie-Mellon University.



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