Mari's main interests are linked to simulation modelling in health care settings. She has worked on many varied projects including service evaluations, clinical trials, workforce planning and cancer care pathways. Mari's areas of expertise are quantitative analysis, mainly using statistics and mathematical modelling to aid decision making in the NHS.

Areas of Expertise

  • Operational Research
  • Simulation
  • Mathematics


  1. Joseph-Williams, N., Jones, M., Griffiths, J., Williams, J., Evans, R., Edwards, A., Kynaston, H., Cochlin, D., Newcombe, R., Kinnersley, P., White, P., Grol, R., Elwyn, G. The cost implications of informed decision-making: a mathematical simulation model of the potential financial effects of a web-based prostate specific antigen decision aid European Journal for Person Centered Healthcare 1 1 193
  2. Griffiths, J., Jones, M., Read, M., Williams, J. A Simulation Model of Bed-occupancy in a Critical Care Unit Journal of Simulation 4 1 52 59
  3. Burton, D., Blundell, N., Jones, M., Fraser, A., Elwyn, G. Shared decision-making in cardiology: Do patients want it and do doctors provide it? Patient Education and Counseling 80 2 173 179
  4. Evans, R., Joseph-Williams, N., Edwards, A., Newcombe, R., Wright, P., Kinnersley, P., Griffiths, J., Jones, M., Williams, J., Grol, R., Elwyn, G. Supporting Informed Decision Making for Prostate Specific Antigen (PSA) Testing on the Web: An Online Randomized Controlled Trial Journal of Medical Internet Research 12 3 e27
  5. Lewis, R., Williams, N., Matar, H., Din, N., Phillips, C., Jones, M., Sutton, A., Burton, K., Nafees, S., Hendry, M., Rickard, I., Chakravety, R., Wilkinson, C., Fitzsimmons, D., Jones, M. The clinical effectiveness and cost-effectiveness of management strategies for sciatica: systematic review and economic model Health Technol Assess 15 39 1 578

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  • Trends in opioid prescribing and associated resource utilisation in Wales (TOPAS) (current)

    Student name:
    Other supervisor: Prof Jaynie Rance
    Other supervisor: Dr Berni Sewell
    Other supervisor: Prof Ceri Phillips

Research Groups

  • SCHE

    Swansea Centre for Health Economics