Mr Mark Chatfield


Centre for Health Services Research
Faculty of Medicine
+61 7 3176 4555


A/Prof Mark D. Chatfield is a diligent, experienced, applied biostatistician. He has substantial involvement with randomised controlled trials (RCTs) and is the RCT and meta-analysis statistics expert within the Faculty's Research and Statistical Support Service (RASSS).

In collaboration with other researchers, he has published over 125 articles in peer-reviewed journals and is an investigator on 14 NHMRC & MRFF funded projects (mostly RCTs). He has co-supervised one PhD student to completion, and is currently co-supervising four PhD students.

He currently undertakes collaborative research with Faculty researchers from:

- Child Health Research Centre [CHRC]

- Centre for Clinical Research [UQCCR]

- Centre for Health Services Research [CHSR]

- School of Public Health [SPH]

In 2020, Mark was awarded The Outstanding Mid-Career Researcher within CHSR. Mark is a main contributor to the Faculty's Statistics Service, which was nominated for a Service Excellence Award in 2019 & 2020.

He is an Honorary Fellow (Associate Professor, 2016-present) with Menzies School of Health Research, where he worked 2012-2017. He has also worked at QIMR Berghofer Medical Research Institute (2017-8), NHMRC Clinical Trials Centre, University of Sydney (2009-2012), UK MRC Human Nutrition Research (2006-9), Department of Public Health and Primary Care, University of Cambridge (2002-6).

Research Interests

  • Randomised Controlled Trials (RCTs)
    Substantial involvement in many RCTs (funding applications, design and analysis, presentation and interpretation). Methodological research into cluster randomised trials (ICC for binary outcomes, stepped wedge designs), sample size, width of 95% CI. Member of Australian Clinical Trials Alliance (ACTA) Statistics in Trials Interest Group (STInG). Judge of ACTA's Excellence in Trial Statistics Award. NHMRC & MRFF Trials Grant Review Panel member.
  • Meta analysis
    I am involved in several meta-analyses, and teach meta-analysis in RevMan and Stata each year. I am especially interested in the meta-analysis of continuous outcomes.
  • Other stats
    Other statistical interests include: Bland-Altman plots, analysis and reporting of lognormal variables, analysis of change. Statistican collaborator in health research. Some statistical consulting. Fellow of the Royal Statistical Society (2002-present). PLoS One Statistical Advisory Board (2015-21). Statistical reviewer for The Lancet (2003-9).
  • Stata statistical software
    Stata expert. Contributor of several user-written programs (, including (1) table1_mc ... create "table 1" of baseline characteristics for a manuscript, (2) precombine... examine n ≥ 2 datasets before combining, (3) labeldatasyntax... produce syntax to label variables and values, given a data dictionary, (4) power tworates_zhu... calculate sample size or power for a two-sample test of rates, (5) ciwidth proportions_mc... calculate precision and power for a CI-based comparison of two independent proportions (RD, RR, or OR). Some of these commands are useful for the systems for the transparent and reproducible organisation of statistical analyses of a study’s data, while others concern determining the sample size of a RCT at the trial design stage.


  • Bachelor of Arts in Mathematical Sciences, Oxf.
  • Master of Science Statistics, University of Southampton


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  • Doctor Philosophy

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Journal Article

Conference Publication

PhD and MPhil Supervision

Current Supervision