Dr Kate Ren BSc (York), MPhil (Cantab), PhD (Sheffield)


University of Sheffield
Regent Court, 30 Regent Street
Sheffield, S1 4DA

Office: 1012/13

Tel: (+44) (0)114 222 0696
Fax: (+44) (0)114 222 0749

E-mail: s.ren@sheffield.ac.uk

ORCiD: 0000-0003-3568-7214


I joined HEDS in 2011 after completing a PhD in Probability and Statistics specialising in Bayesian methods in clinical trial design at the University Of Sheffield. I specialise in the development and application of Bayesian method in health economics, and the elicitation of experts' beliefs. 

Check out the Excel workbook for sampling ordered parameters in PSA

In health economic models, uncertain ordered parameters are common, for example, a patient's utility in a healthy state should be higher than in a diseased state. All probabilistic sensitivity analysis samples should exhibit the logical order of the given parameters. Typical sampling approaches lack either statistical or clinical validity. We have developed a new method, the Difference Method approach, which solves this type of problem more effectively than existing approaches. An Open Access manuscript "A new approach for sampling ordered parameters in probabilistic sensitivity analysis" by Ren et al. is available at link.springer.com/ via dx.doi.org/10.1007/s40273-017-0584-3. The Excel workbook for sampling ordered parameters can be found from the online supplementary material. 

Research interests 

  • Bayesian statistics in clinical trials and health economics
  • Network meta-analysis
  • Extrapolate time-to-event data
  • Eliciting probability distributions
  • Value of information analysis

Teaching Interests

My teaching interests lie in medical statistics and evidence synthesis.

Current/recent Projects

  • Medically Unexplained Symptoms (MUS): behaviour modification interventions in primary care settings
  • Infliximab, adalimumab and golimumab for treating moderately to severely active ulcerative colitis after the failure of conventional therapy: Clinical effectiveness systematic review and economic model
  • Methods for the use of non-randomised studies in evidence synthesis

Extended List of Publications

Journal articles