Biostatistics Core Personnel

Dr. Michael L. Berbaum, Director

Dr. Berbaum is a member of the Institute for Health Research and Policy. He has provided statistical support to numerous investigators in health and community prevention studies throughout his career.

His expertise includes: Observational studies, experimental design, power analysis, longitudinal data analysis and ROC analysis.

Yi-Fan Chen, PhD, Biostatistician

Dr. Chen holds a PhD in biostatistics from the University of Pittsburgh. As a graduate student, she worked within the University of Pittsburgh Clinical and Translational Science Institute from 2009 to 2013.

Her expertise includes: tree modeling, causal inference, meta-analysis, and longitudinal analysis. She is particularly interested in subgroup analysis using tree analysis to assess treatment effects.

Hajwa Kim, MS, Associate Director

Ms. Kim received her MS in Biostatistics from the University of Illinois at Chicago in 2010. She also received her MA in Communication from Seoul National University, Seoul, Korea, in 2002. Her experience includes working as a market research project manager in Seoul, Korea from 2003 to 2006.

Her expertise includes: Analysis method design, power analysis, data analysis, and REDCap (Research Electronic Data Capture) consultation and training. 

Heng Wang, PhD, Biostatistician

Dr. Wang received her PhD in Statistics from Iowa State University in 2012. She has more than 10 years of experience in biostatics research and teaches Epidemiology and Biostatistics as a Clinical Assistant Professor at the School of Public Health at the University of Illinois.

Her expertise includes: statistical methods, genetics and genomics data analysis, statistical modeling and power analysis.

Tianxiu Wang, PhD, Biostatistician

Dr. Wang received her PhD in Biostatistics from the University of Pittsburgh and had postdoctoral training at School of Medicine, University of Pittsburgh from 2015 to 2017.

Her expertise includes: power analysis, observational analysis, and longitudinal analysis including survival analysis.

Nathaly Guzman, Research Associate II

Phone: 312-413-8097