Eric Johnson, MS, completed the University of Washington’s biostatistics master’s program in 2008. His thesis explored common theoretical problems involved with missing data. He quantified them, highlighting conditions leading to suboptimal performance, and provided new guidelines for using various multiple imputation techniques.
During his time at KPWHRI, Mr. Johnson has been involved with multiple projects involving direct intervention with the care-delivery system, observational studies and microsimulation modeling on colorectal and ovarian cancer, massage therapy, and estimating radiation exposure from medical imaging. His current responsibilities lie in research on obesity, opioids, and mental health.
Before earning his master’s degree, Mr. Johnson worked for four years as a research assistant on the Multi-Ethnic Study of Atherosclerosis (MESA), performing statistical analyses, verifying incoming data, and developing a process for providing data sets to all MESA researchers. Later, he was a research statistician with the Department of Veteran Affairs (VA), serving as the primary analyst in an investigation of how well VA hospitals performed non-cardiac surgeries. Mr. Johnson assessed statistical models used by the National Surgical Quality Improvement Program—then devised, tested, and implemented improved models, reporting his findings to VA leadership.
Multiple imputation; prediction models, working with large data
Implementing prediction models, and validating that they work as intended. Research into interventions that are financially feasible for health systems to widely implement
Hubbard R, Johnson E, Chubak J, Wernli KJ, Kamineni A, Bogart A, Rutter C. Estimating screening test effectiveness when screening indication is unknown using generalized linear finite mixture models. Health Services Outcomes Res Methodol.2017 17(2):101-112.
Coleman KJ, Haneuse S, Johnson E, Bogart A, Fisher D, O'Connor PJ, Sherwood NE, Sidney S, Theis MK, Anau J, Schroeder EB, O'Brien R, Arterburn D. Long-term microvascular disease outcomes in patients with type 2 diabetes after bariatric surgery: evidence for the legacy effect of surgery. Diabetes Care. 2016 Jun 6. pii: dc160194. [Epub ahead of print]. PubMed
Hubbard RA, Johnson E, Chubak J, Wernli K, Kamineni A, Bogart A, Rutter CM. Accounting for misclassification in electronic health records-derived exposures using generalized linear finite mixture models. Health Serv Outcomes Res Methodol. 2017 Jun;17(2):101-112. doi: 10.1007/s10742-016-0149-5. Epub 2016 Jun 3. PubMed
Simon GE, Coleman KC, Rossom R, Beck A, Oliver M, Johnson E, Whiteside U, Operskalski B, Penfold RB, Shortreed SM, Rutter C. Risk of suicide attempt and suicide death following completion of the patient health questionnaire depression module in community practice. J Clin Psychiatry. 2016 Feb;77(2):221-7. doi: 10.4088/JCP.15m09776. PubMed
Rutter CM, Knudsen AB, Marsh TL, Doria-Rose VP, Johnson E, Pabiniak C, Kuntz KM, van Ballegooijen M, Zauber AG, Lansdorp-Vogelaar I. Validation of models used to inform colorectal cancer screening guidelines: accuracy and implications. Med Decis Making. 2016 Jul;36(5):604-14. doi: 10.1177/0272989X15622642. Epub 2016 Jan 8. PubMed
Smith DH, Johnson ES, Boudreau DM, Cassidy-Bushrow AE, Fortmann SP, Greenlee RT, Gurwitz JH, Magid DJ, McNeal CJ, Reynolds K, Steinhubl SR, Thorp M, Tom JO, Vupputuri S, VanWormer JJ, Weinstein J, Yang X, Go AS, Sidney S. Comparative effectiveness of statin therapy in chronic kidney disease and acute myocardial infarction: a retrospective cohort study. Am J Med. 2015 Nov;128(11):1252.e1-1252.e11. doi: 10.1016/j.amjmed.2015.06.030. Epub 2015 Jul 11. PubMed
Chubak J, Hubbard RA, Johnson E, Kamineni A, Rutter CM. Assessing the effectiveness of a cancer screening test in the presence of another screening modality. J Med Screen. 2015 Jun;22(2):69-75. doi: 10.1177/0969141314562036. Epub 2014 Dec 9. PubMed
Chubak J, Hubbard RA, Johnson E, Kamineni A, Rutter CM. Assessing the effectiveness of a screening test for cancer in the presence of another screening modality in nonrandomized studies J Med Screen. 2015 Jun;22(2):69-75. doi: 10.1177/0969141314562036. Epub 2014 Dec 9.
Adams KF, Johnson EA, Chubak J, Kamineni A, Doubeni CA, Buist DS, Williams AE, Weinmann S, Doria-Rose VP, Rutter CM. Development of an algorithm to classify colonoscopy indication from coded health care data. EGEMS. (Wash DC). 2015 May 18;3(1):1171. doi: 10.13063/2327-9214.1171. eCollection 2015.
Cromp D, Hsu C, Coleman K, Fishman PA, Liss DT, Ehrlich K, Johnson E, Ross TR, Trescott C, Trehearne B, Reid RJ. Barriers and facilitators to team-based care in the context of primary care transformation. J Ambul Care Manage. 2015 Apr-Jun;38(2):125-33. doi: 10.1097/JAC.0000000000000056.
Models that are easier to explain, use could have better uptake in health care settings.
Using doctor's notes to learn about drug reactions, dementia, and cannabis use.
David Arterburn and colleagues find that bariatric surgery is linked to lower death risk in persons with obesity and CKD.
Diverse Kaiser Permanente patients maintained weight better after gastric bypass than after sleeve gastrectomy
Dr. Rob Penfold leads pragmatic trial of new online version of proven program developed by UW colleagues.