Footnotes

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• Correction notice This article has been corrected since it published Online First. The collaborator names have been udpated.

• Collaborators Amyn Haji, Shraddha Gulati: King’s College Hospital NHS Foundation Trust, London; Joel Mawdsley, Freya Parker: Guy’s & St Thomas’s Hospitals, London; Ed Seward, Melanie Corpus: University College London Hospital, London; Srisha Hebbar, Rajeev Desai: Royal Stoke University Hospital; Nick Kennedy, Bridget Cann: Royal Devon and Exeter Hospital, Exeter; Rajaratnam Rameshshankar, Aymer Postgate: Hillingdon Hospital, London; John Greenaway, Martin Fletcher: South Tees Hospitals NHS Foundation Trust; Mo Thoufeeq, Thomas Archer: Sheffield Teaching Hospitals NHS Foundation Trust; David Nylander, John Leeds: Newcastle-upon-Tyne Hospitals NHS Foundation Trust; Gareth Corbett, Huma Asmat: Addenbrookes Hospital, Cambridge; Muhammed Raheel Anjum, Aravinth Murugananthan: Royal Wolverhampton NHS Trust; Adam Humphries, Sarah Marshall, Angad Dhillon, Romanov Nable: St Mark’s Hospital, London; Sunil Dolwani, Lavanya Shenbagaraj: Cardiff and Vale University Health Board; Pradeep Bhandari, Michelle Baker-Moffat: Queen Alexandra Hospital, Portsmouth; Ajay Verma, Vicki Lewin: Kettering General Hospital, Kettering; Colin Noble, Nick Church: Royal Infirmary of Edinburgh; Aisling Murphy, Adam Bailey: John Radcliffe Hospital, Oxford; Sergio Coda, Sas Banerjee: Barking and Havering NHS Trust, London.

• Contributors Data collation and analysis was performed by BHH. All authors contributed to the study concept and design, manuscript writing and editing.

• Funding JEE was funded by the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre.

• Disclaimer The views expressed are those of the author(s) and not necessarily those of the National Health Service, the NIHR or the Department of Health. James East has served on clinical advisory board for Lumendi and Boston Scientific; Clinical advisory board and ownership, Satisfai Health; Speaker fees, Falk.

• Competing interests CR has received grant funding from ARC Medical, Norgine Pharmaceuticals UK, Olympus Medical UK, 3D Matrix and an expert witness for ARC Medical. BHH has received grant funding from Olympus Medical UK, Fujifilm Europe, Takeda Pharmaceuticals UK and AbbVie UK. Clinical advisory board and ownership: Ampersand Health, Surgease Medical Ltd. IP has received speaker fees from Medtronic and Boston Scientific, UK.

• Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

• Provenance and peer review Not commissioned; externally peer reviewed.