About the Authors

John N. Staffurth

Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – original draft

‡ JNS and SS are joint first authors on this work.

Affiliations Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, United Kingdom, Velindre Cancer Centre, Cardiff, United Kingdom

Stephanie Sivell

Roles Formal analysis, Writing – original draft

SivellS2@cardiff.ac.uk

‡ JNS and SS are joint first authors on this work.

Affiliation Marie Curie Research Centre, Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom

Elin Baddeley

Roles Formal analysis, Writing – review & editing

Affiliation Marie Curie Research Centre, Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom

Sam Ahmedzai

Roles Writing – review & editing

Affiliation National Institute for Health Research, Clinical Research Network–Cancer Cluster Office, University of Leeds, Leeds, United Kingdom

H. Jervoise Andreyev

Roles Writing – review & editing

Affiliations Department of Gastroenterology, Lincoln County Hospital, Lincoln, United Kingdom, The School of Medicine, University of Nottingham, Nottingham, United Kingdom

Susan Campbell

Roles Writing – review & editing

Affiliations Marie Curie Research Centre, Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom, Wales Cancer Research Centre, Cardiff, United Kingdom

Damian J. J. Farnell

Roles Formal analysis, Writing – review & editing

Affiliation School of Dentistry, Cardiff University, Cardiff, United Kingdom

Catherine Ferguson

Roles Writing – review & editing

Affiliation University of Sheffield Medical School, Sheffield, United Kingdom

John Green

Roles Writing – review & editing

Affiliation Department of Gastroenterology, Cardiff and Vale University Health Board, Cardiff, United Kingdom

Ann Muls

Roles Writing – review & editing

Affiliation Royal Marsden NHS Foundation Trust, London, United Kingdom

Raymond O’Shea

Roles Conceptualization, Writing – review & editing

Affiliation Marie Curie Research Centre, Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom

Sara Pickett

Roles Formal analysis, Writing – review & editing

Affiliation Swansea Centre for Health Economics, Swansea University, Swansea, United Kingdom

Lesley Smith

Roles Writing – review & editing

Affiliation Living With and Beyond Cancer Programme, NHS England, London, United Kingdom

Sophia Taylor

Roles Formal analysis, Writing – review & editing

Affiliation School of Health Sciences, University of Southampton, Southampton, United Kingdom

Annmarie Nelson

Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

Affiliation Marie Curie Research Centre, Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.