Professor Catherine Hewitt
Deputy Director, York Trials Unit

Complete our quick survey to help us improve staff profile pages



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.
  • 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


Contact details

Prof. Catherine Hewitt
Deputy Director, YTU

Tel: 01904 32(1374)


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



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