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Ruth Pfeiffer, Ph.D.

Senior Investigator

NCI Shady Grove | Room 7E142


Dr. Pfeiffer is a tenured senior investigator in the Biostatistics Branch. She received an M.S. degree in applied mathematics from the Technical University of Vienna, Austria, and an M.A. degree in applied statistics and a Ph.D. in mathematical statistics—both from the University of Maryland, College Park. At NCI she is an active collaborator on many research projects and mentors several fellows and junior investigators. Her research focuses on statistical methods for risk prediction, problems arising in molecular and genetic epidemiologic studies, and the analysis of data from electronic medical records. She is the recipient of a Fulbright Fellowship, an elected Member of the International Statistical Institute, and an elected Fellow of the American Statistical Association.

Research Interests

  • Methods for the design and analysis of observational studies
  • Methods for high-dimensional data
  • Risk prediction: Methods and applications


  • Absolute Risk: Methods and Applications in Clinical Management and Public Health. Pfeiffer RM, Gail MH. Chapman & Hall. Boca Raton, FL 2018.


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