Andrea Cook, PhD, is a biostatistician whose work focuses on leveraging available data such as electronic health records (EHRs) to efficiently address important public health questions and improve the overall health of our population. Dr. Cook has developed research methods using EHRs and other existing health care data for major initiatives led by the National Institutes of Health (NIH), the Centers for Disease Control and Prevention (CDC), and the U.S. Food and Drug Administration (FDA). Her work spans many areas, including hypertension control, cancer screening, obesity, diabetes, built environment, and alternative medicine for pain.
The goal of Dr. Cook’s research is finding interventions that improve patient care. She studies how pragmatic clinical trials, which are conducted under real-world conditions in health care organizations such as Kaiser Permanente Washington, can deliver more effective care and improve patient outcomes. Dr. Cook is a lead biostatistician for the Biostatistics and Study Design Core of the NIH Collaboratory, which facilitates the implementation of pragmatic clinical trials. She addresses the numerous statistical challenges of pragmatic clinical trials including how to design studies to answer research questions without impeding the delivery of care and how to use EHRs for more cost-effective studies.
Dr. Cook also studies how to use EHR data to improve the way we monitor the safety of new medical products including vaccines, drugs, and medical devices. She contributes to the FDA Sentinel Initiative and the CDC Vaccine Safety Datalink and has led the development of new statistical methods for actively monitoring medical products for rare adverse events using distributed data networks.
Dr. Cook obtained her PhD in biostatistics from the Harvard T.H. Chan School of Public Health in 2005. She is a member of the American Statistical Association and the Western North American Region of the International Biometric Society. She is also an affiliate professor in biostatistics at the University of Washington.
Role of built environment; obesity prevention and control; nutrition
Analysis of longitudinal data; sequential methods
Physical activity; nutrition; built environment
Cook AJ, Wellman RD, Mayhew M, Balderson BH, Justice M, Owen-Smith AA, Keefe FJ, Rini C, Von Korff M, DeBar LL Predictors of patient treatment adherence and moderators of response for a randomized clinical trial comparing remote cognitive behavioral therapy approaches for high-impact chronic musculoskeletal pain 2026 Jul;167(7):1657-1668 doi:10.1097/j.pain.0000000000003971. doi: 10.1097/j.pain.0000000000003971. Epub 2026-04-15. PubMed
Dickerson JF, O'Keefe-Rosetti M, Mayhew M, Cook AJ, Wellman RD, Keefe FJ, Rini C, Owen-Smith AA, Von Korff M, DeBar LL Cost-Effectiveness of Remote Cognitive Behavioral Based Therapy for Chronic Pain among People with High-Impact Chronic Pain 2026 Jun 13 doi: 10.1016/j.jval.2026.05.010. Epub 2026-06-13. PubMed
Gray SL, Piccorelli AV, Hart LA, Cook AJ, Williamson BD, Balderson BH, Phelan EA Substitution Patterns After Discontinuation of CNS-Active Medications in Older Adults in Primary Care 2026 Jun 11 doi: 10.1111/jgs.70514. Epub 2026-06-11. PubMed
VonKorff M, Wellman RD, Keefe FJ, Cook AJ, Mayhew M, Rini C, Balderson BH, DeBar LL Effect of self-management interventions on high impact chronic pain prevalence 2026 Jun 7;46:106346. doi: 10.1016/j.jpain.2026.106346. Epub 2026-06-07. PubMed
NIH-funded study finds that acupuncture improves pain, physical functioning.
Telehealth and online cognitive behavioral therapy could expand treatment options for chronic pain in rural areas.
Study uses geographic data to track change over time.
A new study finds that moving from low- to high-density neighborhoods might be related to reductions in weight gain.