¹Institute of Technology Tralee, Department of Nursing and Healthcare Sciences, Tralee, Ireland, ²Cork University Hospital, Department of Gastroenterology, Cork, Ireland, ³Beaumont Hopsital, Department of Gastroenterology, Dublin, Ireland, ⁴Mercy University Hospital, Department of Gastroenterology, Cork, Ireland

¹Henry Dunant Hospital Centre, Athens, Greece, ²‘Evangelismos-Ophthalmiatreion Athinon-Polykliniki’ Hospital of Athens, Athens, Greece, ³General Hospital of Pafos, Pafos, Cyprus, ⁴National Kapodistrian University of Athens, Athens, Greece

¹Royal London Hospital, GI Medicine, London, UK, ²University College London Hosptial, GI Services, London, UK, ³St Marks Hospital, GI Medicine, London, UK, ⁴Royal London Hosptial, GI Medicine, London, UK

¹Institute of Technology Tralee, Department of Nursing and Healthcare Sciences, Tralee, Ireland, ²University College Cork, School of Nursing and Midwifery, Cork, Ireland, ³King's College London, Florence Nightingale Faculty of Nursing, Midwifery and Pallative Care, London, UK, ⁴Øsfold University College, Health Sciences, Halden, Norway

¹Sunshine Coast University Hospital, Gastroenterology, Birtinya Queensland, Australia

¹IBD clinic, Imelda general hospital, Department of gastroenterology, Bonheiden, Belgium, ²Awell Health, Brussel, Belgium

¹King's College London, Faculty of Nursing, Midwifery and Palliative Care, London, UK, ²King's College London, Health Psychology Section, London, UK

¹Northern Trust, Gastroenterology, Antrim, UK

¹Rabin Medical Center, IBD Center, Division of Gastroenterology, Petah-Tikva, Israel, ²Tel Aviv University, Sackler Faculty of Medicine, Tel Aviv, Israel

¹University of Greenwich, Faculty of Education and Health, London, UK, ²King's College London, Florence Nightingale Faculty of Nursing and Midwifery, London, UK, ³King's College London, Institute of Psychiatry, London, UK, ⁴PPI Team Lead, London, UK

¹University College Cork, School of Nursing and Midwifery, Cork, Ireland, ²Cork University Hospital, Gastroenterology/Hepatology, Cork, Ireland

¹University Hospital of Linköping, Gastroenterology and Hepatology, Linköping, Sweden

¹Aarhus University Hospital, Hepatology and Gastroenterology, Aarhus, Denmark

¹São Paulo State University (Unesp), Medical School, Department of Internal Medicine, Botucatu, Brazil, ²São Paulo State University (Unesp), Medical School, Department of Nursing, Botucatu, Brazil, ³São Paulo State University (Unesp), Medical School, Department of Surgery, Botucatu, Brazil

¹Dorset County Hospital Foundation Trust, Gastroenterology, Dorchester, UK, ²Stepping Hill Hospital, Gastroenterology, Stockport, UK

¹The Children’s Memorial Health Institute, Department of Gastroenterology, Hepatology and Immunology, Warszawa, Poland, ²Children's Memorial Health Institute, 1Department of Gastroenterology, Hepatology, Feeding disorders and Pediatrics, Warszawa, Poland

¹University Medical Centre, Clinical Department of Gastroenterology, Ljubljana, Slovenia, ²University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia

¹Azienda Ospedaliera di Padova, Padova, Italy

¹Kyungpook National University, College of Nursing, Daegu, South Korea, ²Kyungpook National University Hospital, Division of Gastroenterology, Department of Internal Medicine, Daegu, South Korea, ³Keimyung College University, Department of Nursing, Daegu, South Korea

¹Great Ormond Street Hospital, London, UK