Dr James Martin PhD, BSc (Hons)

Dr James Martin

Institute of Applied Health Research
Lecturer in Medical Statistics

Contact details

Public Health Building
Institute of Applied Health Research
University of Birmingham
B15 2TT

James Martin is a Lecturer in Medical Statistics in the Institute of Applied Health Research. He is a member of the Biostatistics, Evidence Synthesis and Test Evaluation (BESaTE) research group.

Since joining the Institute in 2012, James has been involved in a number of exciting projects, collaborating with other members of the BESaTE team, colleagues from the University of Birmingham and other researchers from across the globe.

James’ main research interests are in the area of cluster randomised trials, with particular focus on the design of stepped-wedge cluster randomised trials.James has a variety of teaching responsibilities across various courses within the College.


  • PhD in Medical Statistics, University of Birmingham, 2019
  • BSc in Mathematics, University of Birmingham, 2012


James began working with the Biostatistics group within the Institute of Applied Health Research at the University of Birmingham in October 2015 as trial statistician for the West Midlands ActiVe lifestyle and healthy Eating in School children (WAVES) study. He then spent some time as a statistical advisor for the Research Design Service (RDS). James later became a Lecturer in Medical Statistics.

James is involved in many exciting research projects. His work focuses on the design and analysis of cluster randomised trials. With particular focus on the design of stepped-wedge cluster randomised trials. James has worked on several national and international cluster trials, aiding in the design stage, and carrying out the main trial analysis.

James has many teaching responsibilities across several courses. Mostly, he teaches statistical methodology to an audience of non-statisticians. Currently, he is involved in teaching on the Masters in Public Health (MPH) programme, co-leading the Practical Epidemiology in Statistics (PEaS) module. James also leads the statistics module on the Medicine and Surgery (MBChB) Graduate Entry Course (GEC).


  • Public Health MPH —Epidemiology, Statistics and Research Methods (ESRM), Practical Epidemiology and Statistics (PEaS), Systematic Reviews, and Advanced Statistical Methods.
  • Medicine and Surgery (MBChB) Graduate Entry Course (GEC) and Medicine and Surgery (MBChB)—Medical Statistics module.


James’ research focuses on the design of stepped-wedge cluster randomised trials (SW-CRTs), specifically finding the impact of many key design features on the power of a SW-CRT.

His research in this area originates from his PhD (Titled: “Advancing knowledge in stepped-wedge cluster randomised controlled trials”). James is involved in many grant applications for planned SW-CRTs and parallel CRTs, which cover a wide spectrum of research areas.

James is the study statistician for the NIHR-HTA funded “West Midlands ActiVe lifestyle and healthy Eating in School children (WAVES)” study; the UK Department for International Development (DFID) funded “Saving lives through weaning food hygiene” study which aims to improve the behaviour of mothers in rural Gambia.

Other activities

James is a member of the RSS West Midlands Local Group


Martin JT, Hemming K, Girling A. The impact of varying cluster size in cross-sectional stepped-wedge cluster randomised trials. BMC medical research methodology. 2019 Dec;19(1):123.

Martin J, Taljaard M, Girling A, Hemming K. Systematic review finds major deficiencies in sample size methodology and reporting for stepped-wedge cluster randomised trials. BMJ Open. 2016;6(2):e010166

Martin J, Girling A, Nirantharakumar K, Ryan R, Marshall T, Hemming K. Intra-cluster and inter-period correlation coefficients for cross-sectional cluster randomised controlled trials for type-2 diabetes in UK primary care. Trials. 2016;17:402. 

Adab P, Pallan MJ, Lancashire ER, Hemming K, Frew E, Barrett T, Bhopal R, Cade JE, Canaway A, Clarke JL, Daley A, Deeks JJ, Duda JL, Ekelund U, Gill P, Griffin T, McGee E, Hurley K, Martin J, Parry J, Passmore S, Cheng KK. Effectiveness of a childhood obesity prevention programme delivered through schools, targeting 6 and 7 year olds: cluster randomised controlled trial (WAVES study). BMJ. 2018 Feb 7;360:k211.

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