Statistical Science


Professor Gareth Ambler

PositionProfessor of Medical Statistics


Biographical Details

Gareth Ambler…

Gareth is a Professor of Medical Statistics at the Department of Statistical Science, UCL and a member of the Biostatistics Group within the UCLH/UCL Joint Research Support Office. Gareth completed a PhD in Statistics in 1996 at the University of Sussex. Previously he worked in the department of Medical Statistics at Imperial College School of Medicine. 

Other Affiliations

  • Member of the Editorial Board, BMC Diagnostic and Prognostic Research (2016-)
  • Member of the Editorial Board, Colorectal Disease (2012-)
  • Member of the UCLH BRC/CRDC Funding Committee (2011-)

Research Interests

  • Risk prediction models
  • Survival data
  • Clinical trials
  • Missing data


  • Medical Statistics 1 (STAT0014)
  • Medical Statistics 2 (STAT0015) [module leader]


Selected Recent Grants

  • Guidance On Sample Size When Using Observational Data To Develop And Validate Risk Prediction Models In Health Research. PI: Gareth Ambler (UCL). MRC. £317,135. 1/12/17 (36 months).
  • Randomised controlled trial of the Community Navigator programme to reduce loneliness and depression for adults with treatment resistant depression in secondary mental health services. PI: Brynmor Lloyd Evans (UCL). NIHR HTA. £1,912,616.99. 1/9/21 (42 months).
  • Prediction of Adolescent meNtal healTH from Electronic health Records (PANTHER). PI: Irene Petersen (UCL). Wellcome Trust. 
  • A triple-blind randomised placebo-controlled feasibility study to assess the impact of octreotide infusion during liver transplantation on post-operative renal failure. PI: Brian Davidson (UCL). NIHR RfPB.
  • LOOC - Lymphatic mapping Of Oropharnygeal Cancer. PI: Mark McGurk (UCLH). NIHR EME. £1,033,008.67. 1/6/19 (5 years).
  • Congenital Heart Audit: Measuring Progress In Outcomes Nationally (CHAMPION). PI: Sonya Crowe (UCL). NIHR PRP. £742,850. 1/5/19 (3 years).
  • A randomised, open label trial of exenatide as a treatment for Multiple System Atrophy. PI: Thomas Foltynie (UCL). John Black Charitable Foundation. £220,962.96. 1/3/19 (3 years). 
  • Personalised care for people with Parkinson’s Disease: PD-Care. PI: Kate Walters (UCL). NIHR PGAR. £1,507,806.88. 1/11/18 (60 months). 
  • Evaluating the Little Journey app: An RCT of a virtual reality preparatory tool for children undergoing surgery with general anaesthesia. PI: Ramani Moonesinghe (UCL). NIHR RfPB. £200,419.81. 1/9/18 (31 months) 
  • Clinical and cost effectiveness of a parent mediated intervention to reduce challenging behaviour in pre-schoolers with moderate to severe learning disability: a randomised controlled trial. PI: Angela Hassiotis (UCL). NIHR HTA. £1,405,282. 1/6/17 (48 months).
  • Variations in the organisation of Early Pregnancy Assessment Units (EPAUs) in the UK and their effects on clinical, service and patient-centred outcomes. PI: Davor Jurkovic. NIHR HS&DR. £839,132. 1/11/15 (24 months).
  • An investigation into the use of shrinkage methods to alleviate the over-fitting of prognostic models with few events for independent and clustered data. PI: Rumana Omar (UCL). MRC. £300,445. 1/2/13 (36 months).
  • Health-Related Quality of Life in two treatment pathways for primary open angle glaucoma and ocular hypertension: a randomised controlled trial of initial selective laser trabeculoplasty versus conventional medical therapy. PI: Dr Gus Gazzard (Institute of Ophthalmology). National Institute of Health Research Health Technology Assessment (NIHR HTA). £1,692,821. 1/9/12 (72 months).