Meet BRU Staff

George Tomlinson, MSc, PhD  

George Tomlinson, MSc, PhD
BRU Director, Senior Biostatistician


Current Position and Professional Functions

George Tomlinson is the director of the BRU, a scientist in the Department of Medicine at UHN/Mt Sinai Hospital and an Associate Professor in the Institute of Health Policy, Management and Evaluation, in the Division of Biostatistics at the Dalla Lana School  of Public Health, and in the Departments of Medicine and Medical Imaging, all at the University of Toronto.

Education and Training

George has a PhD in biostatistics from the University of Toronto and over 20 years of experience in design and analysis of medical research.  

His PhD was in the area of Bayesian hierarchical models and he promotes the use of the Bayesian approach to data analysis, as there are many situations where it can solve problems that are difficult to solve using traditional approaches.

Research Interests and Expertise

  • Bayesian methods
  • Meta-analysis
  • Multilevel modeling for longitudinal and clustered data
  • Clinical trials

 

Dr. George Tomlinson's publications in PubMed.
Nicholas Mitsakakis, MSc, PhD  

Nicholas Mitsakakis, MSc, PhD, P.Stat.
Senior Biostatistician


Current Position and Professional Functions

Nicholas Mitsakakis is a biostatistician at the BRU and an assistant professor at the Institute of Health Policy, Management and Evaluation and at the Division of Biostatistics of the Dalla Lana School of Public Health, University of Toronto. He is also Investigator of the Toronto Health Economics and Technology Assessment (THETA) Collaborative.

Education and Training

Nicholas holds a PhD degree in biostatistics from the Dalla Lana School of Public Health, University of Toronto, focused on Bayesian methods for Gaussian graphical models. He has a Professional Statistician (P.Stat.) accreditation by the Statistical Society of Canada. He also holds undergraduate and graduate degrees in mathematics (University of Athens, Greece) and a Master’s degree in artificial intelligence (University of Edinburgh, UK).

Research Interests and Expertise

  • statistical methods for the analysis of medical cost data, health related quality of life and medical decision making

  • clinical trials

  • application of graphical models in biostatistics and health economics

 

Dr. Nicholas Mitsakakis's publications in Pubmed.
Ella Huszti, MSc, PhD  

Ella Huszti, MSc, PhD                                         
Senior Biostatistician


Current Position and Professional Functions

Ella Huszti is a biostatistician at UHN’s Biostatistics Research Unit, where she collaborates with researchers from various departments on study design, is responsible for data analysis, and contributes to research publications.

Education and Training

Ella holds a PhD degree in biostatistics from the Department of Epidemiology and Biostatistics at McGill University, focused on Markov Relative Survival Models. She also holds an undergraduate degree in applied mathematics (Western University of Timisoara, Romania) and a Master’s degree in statistics (University of Alberta). She has previously worked at several major university medical research centres, including Princess Margaret Cancer Centre.

Research Interests and Expertise

Some of Ella’s previous work include examining the quality-of-life in survivors of cardiac arrest in a large, multi-centre clinical trial of Public Access Defibrillation, modelling change over time in breast density in the context of breast cancer prevention, and even debunking the alleged longer life span of Oscar winners. Her areas of expertise include survival analysis, methodological issues arising in observational studies and clinical trials.

 

Dr. Ella Huszti publications in PubMed..
Jin Ma Photo  

Jin Ma, MSc, PhD                                            
Biostatistician


Current Position and Professional Functions

Jin is a biostatistician in UHN’s Biostatistics Research Unit, where he is responsible for study design, data analysis, reporting results and statistical consultation. 

Education and Training

Jin holds a Master’s degree in biostatistics from the Dalla Lana School of Public Health, University of Toronto. He also holds a Master’s degree in forestry (University of New Brunswick) and a PhD degree in molecular biology (Shandong Agricultural University, China).

Research Interests and Expertise

Jin has experience in statistical genetics, including genome and epigenome wide association studies, survival analysis for molecular biomarkers, evaluation of SNP pairs between donor and recipient in lung transplant, and multiple imputation for missing values in clinical trials.

Dr. Jin Ma publications in ORCiD.


John Matelski, MSc  

John Matelski, BSc, MSc
Biostatistician


Current Position and Professional Functions

John Matelski is a biostatistician in UHN’s Biostatistics Research Unit, where he collaborates with research clinicians from a variety of departments. He is responsible for conceptualizing, performing, and reporting statistical analyses for research publications. He is also involved in teaching statistical computing to UHN employees.

Education and Training

John earned his bachelor’s degree from University of Miami (2007), majoring in music performance. He went on to complete a master’s degree in Biostatistics at University of Toronto’s Dalla Lana School of Public Health (2014).

Research Interests and Expertise

John’s work has focused on analyzing data arising from health care interventions, in particular, Antimicrobial Stewardship Programs in Toronto hospitals. His analytical skills have recently been utilized to investigate relationships between immunologic proteins and quality of life outcomes for leukemia patients, as well as survival outcomes and tests of pulmonary function for lung transplant patients.

 

John Matelski publications in PubMed.
Leah Szadkowski Photo  

Leah Szadkowski, BSc, MSc
Biostatistician


Current Position and Professional Functions

Leah is a biostatistician at the Biostatistics Research Unit at the Toronto General Hospital and collaborates primarily with the Immunodeficiency Clinic to conduct clinical research on HIV. Working with data from randomized controlled trials, clinic databases, Ontario-wide and Canada-wide multi-site cohorts, she conducts statistical analyses and prepares reports, posters, and papers for publication.

Education and Training

Leah completed a Bachelor of Science degree with a specialization in psychology at the University of Ottawa in 2008 and a Master of Science degree with a specialization in biostatistics at University of Toronto in 2012.

Research Interests and Expertise

Leah has been conducting statistical analyses for HIV research for over 5 years often using longitudinal methods including generalized estimating equations, generalized linear mixed models, and time to event models. She is interested in learning more about statistical methodologies including multiple imputation of missing data and marginal structural models.

Leah Szadkowski publications in ORCiD.