Jessica Chubak

Affiliate Professor, Epidemiology



PhD Epidemiology, University of Washington, 2007
MBHL Bioethics and Health Law, University of Otago, 2002



Kaiser Permanente Washington
1730 Minor Avenue, Suite 1600
Seattle, WA 98101


I am an epidemiologist with broad interests across the cancer care continuum. As a Senior Scientific Investigator at Kaiser Permanente Washington Health Research Institute (KPWHRI), I lead and participate in studies of cancer screening and outcomes. I have experience working in large research networks and with automated data, chart review, and patient-reported outcomes.

Research Interests

Her primary areas of research interest are in epidemiologic methods, cancer prevention and control, and pharmacoepidemiology.

Recent Publications (PubMed)

SAT: a Surrogate-Assisted Two-wave case boosting sampling method, with application to EHR-based association studies.
(2021 Dec 28)
J Am Med Inform Assoc
Liu X, Chubak J, Hubbard RA, Chen Y

Variation in the receipt of human papilloma virus co-testing for cervical screening: Individual, provider, facility and healthcare system characteristics.
(2022 Jan)
Prev Med 154(): 106871
Haas JS, Cheng D, Yu L, Atlas SJ, Clark C, Feldman S, Silver MI, Kamineni A, Chubak J, Pocobelli G, Tiro JA, Kobrin SC

Core concepts in pharmacoepidemiology: Violations of the positivity assumption in the causal analysis of observational data: Consequences and statistical approaches.
(2021 Nov)
Pharmacoepidemiol Drug Saf 30(11): 1471-1485
Zhu Y, Hubbard RA, Chubak J, Roy J, Mitra N

Characterizing Bias Due to Differential Exposure Ascertainment in Electronic Health Record Data.
(2021 Sep)
Health Serv Outcomes Res Methodol 21(3): 309-323
Hubbard RA, Lett E, Ho GYF, Chubak J

Letter: The Choice of Control Conditions in Animal-Assisted Intervention Research.
(2021 Jan-Dec)
Integr Cancer Ther 20(): 15347354211025626
Chubak J, Hawkes R, Dudzik C, Ziebell RA, Sherman KJ

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In the News

Pet Therapy Project Serves as Crowdfunding Guinea Pig
Group Health Research News, 08/29/2013
Colon Cancer Screening Doubles Using e-Health Records
Annals of Internal Medicine, 03/05/2013