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Professor Catherine Hewitt
Deputy Director, York Trials Unit



Cath works as Deputy Director of the York Trials Unit and also as a senior statistician on a variety of trials.


  • BSC  Mathematics and Statistics
  • MSC  Mathematics
  • PhD  Health Sciences

Departmental roles

  • Senior statistician
  • Deputy Chair of Graduate School Board



  • Calderdale 2 - Independent Evaluation of using self-regulated strategy development (SRSD) and memorable experiences to improve writing quality.
  • CASPER PLUS - Collaborative care in screen positive elders with major depressive disorders.
  • CHEMIST - Community Pharmacies Mood Intervention Study (CHEMIST): A Feasibility and Pilot Study.
  • Connect project -  Co-Production of Policing Evidence, Research and Training: Focus Mental Health.
  • CPIT III - The Smoking Cessation in Pregnancy Incentives Trial: A Multi-centre phase III Randomised Controlled Trial.
  • FARSTER - Feasibilty study of early outpatient review and early cardiac rehabilitation after coronary artery bypass grafting.
  • Gentle Years Yoga (GYY) - Individually randomised controlled, two arm, pragmatic, multi-centre trial to determine the clinical and cost-effectiveness of an adapted yoga programme for older adults with multimorbidity.
  • HERO - Hydroxychloroquine Effectiveness in Reducing symptoms of hand Osteoarthritis.
  • Online Maths Tuition - Independent Evaluation of the Third Space Learning’s Online Maths Tuition Service – A cluster randomised controlled trial.
  • Maths Champions
  • OTIS - Occupational Therapist Intervention Study.
  • Project-Based Learning - an approach to instruction in which all lessons and activities are organised around a single complex enquiry or project.
  • ProFHER - Proximal Fracture of the Humerus: Evaluation by Randomisation.
  • PROFHER 2 - Proximal Fracture of the Humerus: Evaluation by Randomisation Trial no.2.
  • PROLLIT: Patient Reported Outcome Measure for Lower Limb Reconstruction
  • PROMOTE - Placebo-controlled trial of methotrecate to treat painful knee osteoarthritis.
  • REFORM - A randomised study in elders falling.
  • RESPECT - Randomised Evaluation Sexual Health Promotion Evidence for Care and Treatment: A feasibility study of an intervention to promote sexual health for people with serious mental illness (SMI).
  • SCI-napse
  • SCOOP - Screening for osteoporosis in older women for the prevention of fractures.
  • SWIFFT - Scaphoid Waist Internal Fixation for Fractures.
  • Teensleep - Independent Evaluation of Project Teensleep: A Factoral Cluster Randomised Contrlled Trial.
  • UK FROST - United Kingdom Frozen Shoulder Trial.

Research group(s)


Catherine supervises PhDs in the following areas: randomised controlled trials, statistics, systematic reviews, bias, diagnostic reviews, meta-analysis.

Current PhD Supervisees


Full publications list

External activities


Catherine is a member of the following panels and committees:

  • Cross-Whitehall trials advice panel
  • HTA comissioning board
  • Speciality examiner for the Royal College of Radiologists, Clinical Oncology part 1 exam

Catherine is also part of the following Data monitoring and ethics committees (DMEC):

  • NATTINA - The National Trial of Tonsillectomy in Adults, Newcastle
  • MINIDEX, Oxford
  • DAFNE plus - Dose Adjustment for Normal Eating, Sheffield
  • BOOST - Better Outcomes for Older People with Spinal Trouble, OXFORD
  • FISCU - , Sheffield

Catherine Hewitt

Contact details

Professor Catherine Hewitt
Deputy Director, YTU

Tel: 01904 32(1374)




  • Module leader for Introduction to Health Statistics
  • Understanding Clinical Statistics
  • Measurement in Health and Disease