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Ben J. Marafino, PhD

Kaiser Permanente Researcher Profiles

Ben J.  Marafino, PhD

​Ben J. Marafino, PhD, is a Research Scientist at the Kaiser Permanente Division of Research. His current research interests include: 1) the implementation science of machine learning, predictive analytics, and related methods as applied to care delivery; 2) applied causal inference for program evaluation and other observational studies, particularly quasi-experimental methods; and 3) methods for heterogeneous treatment effects in general. In addition, Dr. Marafino also serves as a methodologist, lending his expertise in the areas of statistics, machine learning, and informatics to other investigators at DOR and The Permanente Medical Group. He received his PhD from Stanford University.

Current Positions

  • Research Scientist, Division of Research, Kaiser Permanente Northern California

Section Affiliations

Primary Research Interests

  • Design of observational studies
  • Quasi-experimental methods
  • Machine learning
  • Delivery and implementation science
  • Health care operations research


Human Immunodeficiency Virus Status, Tenofovir Exposure, and the Risk of Poor Coronavirus Disease 19 (COVID-19) Outcomes: Real-World Analysis From 6 United States Cohorts Before Vaccine Rollout

Authors: Lea, Alexandra N; Marafino, Ben J; Skarbinski, Jacek; Silverberg, Michael J; et al.

Clin Infect Dis. 2023 Mar 02.

PubMed abstract

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