I retired June 30, 2022 after 25 years as a professor at CU Anschutz. During that time I balanced my effort between teaching, mentoring, statistical methods development, collaborative research, and administration, and was especially active with the department’s education programs. My statistical methods research was mostly in the area of correlated non-normal data, particularly counts, proportions, and continuous data with zeros. My early work was mainly in time series with later work in longitudinal and clustered data for the same types of outcomes. My collaborative work was in the areas of nutrition and physiology, and later cardiovascular health outcomes research, where I still do a small amount of collaborative work with the Denver VA COIN program.
Areas of Expertise
- Biostatistics
- Correlated data
- Non-normal data
- Health outcomes research
- Statistical methods in cardiology
Education, Licensure & Certifications
- PhD, Statistics, University of Washington, 1987
- MA, Mathematics, University of Oregon, 1978
- BS, Engineering/Applied Math, Colorado School of Mines, 1976
Resumes/CV:
Awards
- Faculty Excellence in Mentoring Award, ColoradoSPH, 2015
- Dean's Mentoring Award, CU Anschutz Graduate School, 2013
Courses
- BIOS 6621/22 Statistical Consulting I & II
- BIOS 7712 Correlated Non-normal Data
Publications and Presentations
- Grunwald GK, Arnett JA, Liu W, Ho PM. (2020) Bayesian profiling for cost with zeros to decompose total cost into probability of cost and mean non-zero cost. Biometrical Journal.
- Liu W, Grunwald GK, Ho PM. (2019) Two-part models for cost with zeros to compare effects of covariates on probability of cost, mean non-zero cost, and mean total cost. Statistics in Medicine 38:2767-2782
- Valle JA, Glorioso TJ, Schuetze KB, Grunwald GK, Armstrong EJ, Waldo SW. (2019) Contemporary use of embolic protection devices during saphenous vein graft intervention: Insights from the Veterans Affairs Clinical Assessment, Reporting and Tracking program. Circulation: Cardiovascular Interventions 12:e007636
- Glorioso T, Grunwald GK, Ho, PM, Maddox TM. (2018) Interpreting, quantifying and comparing random and fixed effects in non-normal multilevel models. BMC Medical Research Methodology, 18:74
- Carlson NE, Grunwald GK, Johnson TD. (2016) Using Cox cluster processes to model the pulse generating mechanism driving time series of hormone data. Biostatistics, 17:320-333