Stanley Xu, PhD, MS

Research Scientist III

Division of Biostatistics Research



Dr. Stanley Xu is a senior research scientist biostatistician in the Division of Biostatistics Research in the Department of Research & Evaluation. He has served as principal investigator, co-investigator, and lead biostatistician on randomized trials and observational studies funded by the National Institutes of Health, Agency for Healthcare Research and Quality, Centers for Disease Control and Prevention, and the U.S. Food and Drug Administration. He has published novel statistical methods in longitudinal data analyses, count data analyses, self-controlled studies, survival analyses, confounder adjustment, outcome misclassification, probabilistic bias analyses, missing data, multiple imputation, and sequential analyses.

Dr. Xu has contributed to studies of vaccine safety, substance abuse, cardiac outcomes, diabetes, hypertension, pharmacoepidemiology, health care utilization during the COVID-19 pandemic, heath care disparities, social needs, mental health, prediction models, and effectiveness and safety of treatments for hospitalized patients with COVID-19.


He works closely with principal investigators in developing grant proposals, conducting rigorous research, and preparing and publishing scientific articles

Areas of Focus

  • Analytic methods
  • Vaccine safety
  • Pharmacoepidemiology
  • Overdose prevention


PhD, Biostatistics
University of Colorado
Denver, Colorado
MS, Biostatistics
University of Colorado
Denver, Colorado
PhD, Applied Chemistry
Beijing Agricultural University
Beijing, China
MS, Agricultural Science
Beijing Agricultural University
Beijing, China

Honors and Awards

  • Graduate Merit Fellowship, University of Colorado Health Sciences Center
  • Fellowship, Kansas Health Foundation