Nicholas Burr‡   1

1   Department of Gastroenterology, Mid Yorkshire Teaching Hospitals NHS Trust, Wakefield, United Kingdom

2   Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom

David Beaton‡   1

3   Department of Gastroenterology, Northumbria Healthcare NHS Foundation Trust, North Shields, United Kingdom

Nigel Trudgill

4   Department of Gastroenterology, Sandwell and West Birmingham NHS Trust, West Bromwich, United Kingdom

5   Institute of Cancer and Genomic Studies, University of Birmingham, Birmingham, United Kingdom

Andrew Lee

6   Department of Gastroenterology, Toowoomba Hospital, Toowoomba, Queensland, Australia

7   University of Queensland, Faculty of Medicine, Brisbane, Queensland, Australia

Tameera Rahman

8   Health Data Insight, Cambridge, United Kingdom

9   National Disease Registration Service, NHS England, London, United Kingdom

Sean McPhail

9   National Disease Registration Service, NHS England, London, United Kingdom

Natasha Wood

8   Health Data Insight, Cambridge, United Kingdom

9   National Disease Registration Service, NHS England, London, United Kingdom

Matthew D. Rutter

10   Gastroenterology, University Hospital of North Tees, Stockton on Tees, United Kingdom

11   Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom

Roland Valori‡   2

12   Gastroenterology, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, United Kingdom

Eva J. A. Morris‡   2

2   Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom

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