A. McNelly¹, I. Nathan¹, M. Monti², G. Grimble³, C. Norton*⁴, F. Bredin⁵, W. Czuber-Dochan⁴, S. Berliner⁶, M. Gay⁶, M. Darvell⁶, H. Terry⁶, A. Forbes⁷

¹UCL, Centre for Gastroenterology and Nutrition, London, United Kingdom, ²UCL Hospitals Foundation Trust, GI Services Division, London, United Kingdom, ³UCL, Institute of Liver and Digestive Health, London, United Kingdom, ⁴Kings College London, Florence Nightingale Faculty of Nursing & Midwifery, London, United Kingdom, ⁵Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Gastroenterology, Cambridge, United Kingdom, ⁶Crohn’s & Colitis UK, St Albans, United Kingdom, ⁷Norwich Medical School/UEA, Gastroenterology, Norwich, United Kingdom

J.-S. Kim*¹, Y.-S. Cho²

¹Catholic University of Korea, Department of Internal Medicine, Seoul, South Korea, ²Catholic University of Korea, Department of Internal Medicine, Seoul, South Korea

K. Pavlovska*¹, M. Slaninka Miceska¹, P. Mishevska², J. Tonic Ribarska³, E. Atanasovska¹, I. Kikerkov¹, L. Efremovska⁴, M. Petrushevska¹

¹Medical faculty, Department of preclinical and clinical pharmacology and toxicology, Skopje, Macedonia, the former Yugoslav Republic of, ²Medical faculty, Gastroenterohepatology clinic, Skopje, Macedonia, the former Yugoslav Republic of, ³Faculty of pharmacy, Skopje, Macedonia, the former Yugoslav Republic of, ⁴Medical faculty, Institute of physiology, Skopje, Macedonia, the former Yugoslav Republic of

Y. Inaba*¹, M. Taruishi¹, M. Fujiya², Y. Saitoh¹

¹Asahikawa City Hospital, Gastroenterology, Asahikawa, Japan, ²Asahikawa Medical University, Internal Medicine, Asahikawa, Japan

A. Ferguson*¹, C. Rogge², E. Gruber¹, R. Jennings¹, M. Carrie¹, J. Roberts², T. Lee²

¹Illawarra Shoalhaven Local Health District, Nutrition and Dietetics, Wollongong, Australia, ²Wollongong Hospital, Gastroenterology, Wollongong, Australia

G. Pellegatta*¹, G. Bodini¹, E. Giannini¹, C. De Maria¹, I. Baldissarro², V. Savarino², E. Savarino³

¹University of Genoa, Department of Gastroenterology and Internal Medicine, Genoa, Italy, ²University of Genoa, Internal Medicine Department, Genoa, Italy, ³University of Padua, Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, Padua, Italy

D. Holt*¹, B. Strauss², G. Moore^{1, 2}

¹Monash Health, Department of Gastroenterology & Hepatology, Clayton, Australia, ²Monash University, School of Clinical Sciences, Melbourne, Australia

P. Bager*¹, J. Frederik Dahlerup²

¹Aarhus University Hospital, Department of Hepatology and Gastroenterology, Aarhus, Denmark, ²Aarhus University Hospital, Department of Hepatology and Gastroenterology, Aarhus, Denmark

B. Christopher*¹, O. Aoko², A. O’Toole³, S. Patchett³, C. Smyth¹, S. Sengupta², R. Farrell¹

¹Connolly Hospital Blanchardstown, Department of Gastroenterology, Dublin, Ireland, ²Our Lady of Lourdes Hospital, Department of Gastroenterology, Drogheda, Ireland, ³Beaumont Hospital, Department of Gastroenterology, Dublin, Ireland

G. De Caro*, C. Madia, F. Gaiani, A. Fugazza, B. Bizzarri, A. Ghiselli, F. Fornaroli, F. Vincenzi, G.L. de’ Angelis

Azienda Ospedaliero Universitaria di Parma, Gastroenterologia ed Endoscopia Digestiva, Parma, Italy

R. Iliaz¹, S. Evirgen¹, F. Akyuz¹, B. Cavus¹, B. Pinarbasi², C. Karaca¹, K. Demir¹, F. Besisik¹, S. Kaymakoglu*¹

¹Istanbul University, Department of Gastroenterology, Istanbul, Turkey, ²Liv Hospital, Department of Gastroenterology, Istanbul, Turkey

H. Tamaki*, T. Noda, S. Arasawa, M. Izuta, A. Kubo, C. Ogawa, T. Matsunaka, M. Shibatoge

Takamatsu Red Cross Hospital, Gastroenterology, Takamatsu, Japan

T. Naftali*^{1, 2}, L. Bar Lev Schlieder³, J. Hirsch⁴, I. Lish⁵, F. Benjaminov⁶, F. Konikoff⁶

¹Meir Medical Centre, Gastroenterology, Kfar Saba, Israel, ²Tel Aviv University Sackler School of Medicine, Internal Medicine, Tel Aviv, Israel, ³Bar Ilan University, Behavioural Sciences, Tel Aviv, Israel, ⁴Meir Medical Centre, Department of Gastroenterology & Hepatology, Kfar Saba, Israel, ⁵Tel Aviv University Sackler School of Medicine, Internal Medicine, Tel Aviv, Israel, ⁶Tel Aviv University Sackler School of Medicine, Internal Medicine, Tel Aviv, Israel

G. Fiorino¹, N. Manetti*², A. Variola³, F. Bossa⁴, G. Rizzuto⁵, L. Guidi⁶, G. Maconi⁷, S. Ghione⁸, L. Cantoro⁹, G. Lorenzon¹⁰, W. Fries¹¹, M. L. Annunziata¹², F. Costa¹³, M. M. Terpin¹⁴, B. Principi¹⁵, C. Cortelezzi¹⁶, L. Biancone¹⁷, A. Amato¹⁸, P. Occhipinti¹⁹, S. Mazzuoli²⁰, S. Ardizzone²¹, M. Di Girolamo²², P. Alvisi²³, G. Meucci²⁴, L. Caserta²⁵, S. Saibeni²⁶, C. Petruzzellis²⁷, A. Ronchetti²⁸, M. Cappello²⁹, F. Castiglione³⁰, S. Danese¹, A. Massella³, D. Varvara⁴, A. Orlando⁵, A. Armuzzi⁶, A. Massari⁷, P. Lionetti⁸, A. Kohn⁹, R. D’Incà¹⁰, M. Vecchi¹², L. Bertani¹³, V. Annese on behalf of IG-IBD^{2, 31}

¹Humanitas Research Hospital and University, Gastroenterology and IBD Centre, Rozzano, Italy, ²AOU Careggi, DEA, Gastroenterology, Florence, Italy, ³Sacro Cuore Don Calabria Hospital, Gastroenterology and Hepatology, Negrar, Italy, ⁴IRCCS-CSS Hospital, Gastroenterology, San Giovanni Rotondo, Italy, ⁵Riuniti Villa Sofia - Cervello Hospital, Internal Medicine 2, Palermo, Italy, ⁶Complesso Integrato Columbus - Catholic University, Internal Medicine and Gastroenterology, Rome, Italy, ⁷Luigi Sacco University Hospital, Gastroenterology and IBD Unit, Milan, Italy, ⁸Meyer Children’s Hospital, Gastroenterology and Nutrition, Florence, Italy, ⁹S. Camillo-Forlanini Hospital, Gastroenterology, Rome, Italy, ¹⁰University of Padova, Gastroenterology, Padova, Italy, ¹¹University of Messina, Gastroenterology, Messina, Italy, ¹²IRCCS Policlinico, Gastroenterology, San Donato Milanese - MI, Italy, ¹³AOUP, Gastroenterology, Pisa, Italy, ¹⁴AO Hospital, Gastroenterology and Endoscopy, Legnano, Italy, ¹⁵University Bari, Gastroenterology, Bari, Italy, ¹⁶AOU di Circolo Fondazione Macchi, Gastroenterology, Varese, Italy, ¹⁷Tor Vergata, Gastroenterology, Roma, Italy, ¹⁸Ospedale Valduce, Gastroenterology, Como, Italy, ¹⁹AOU Maggiore, Gastroenterology, Novara, Italy, ²⁰S. Pellegrino Hospital, Gastroenterology, Trani, Italy, ²¹Fatebenefratelli - Oftalmico Hospital, Gastroenterology, Milano, Italy, ²²University Hospital, Gastroenterology, Modena, Italy, ²³Maggiore Hospital, Paediatric Department, Bologna, Italy, ²⁴S. Giuseppe Hospital, Gastroenterology, Milano, Italy, ²⁵IRCCS AOU S. Martino-ISTl, Gastroenterology, Genova, Italy, ²⁶AO Hospital, Gastroenterology, Rho, Italy, ²⁷Poliambulanza Hospital, Gastroenterology and Digestive Endoscopy, Brescia, Italy, ²⁸AO Hospital, Internal Medicine, Lecco, Italy, ²⁹University Hospital, Gastroenterology, Palermo, Italy, ³⁰Federico II University, Gastroenterology, Naples, Italy, ³¹Italian Group for the Study of IBD, IG-IBD, Italy

L. Roque Ramos¹, R. Barosa¹, A. Nunes², A. Regalado³, A. Vieira¹, J. Freitas¹, J. Demengeot³, S. Garcês*⁴

¹Hospital Garcia de Orta, Gastroenterology, Almada, Portugal, ²Hospital Garcia de Orta, Department of Gastroenterology, Almada, Portugal, ³Instituto Gulbenkian Ciência, Oeiras, Portugal, ⁴Hospital Garcia de Orta, Rheumatology, Almada, Portugal

B. Jonefjäll^{1, 2}, M. Simrén^{1, 3}, A. Lasson⁴, L. Öhman^{1, 5}, H. Strid*^{1, 4}

¹Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Department of Internal Medicine and Clinical Nutrition, Gothenburg, Sweden, ²Department of Internal Medicine, Kungälv Hospital, Kungälv, Sweden, ³University of Gothenburg Centre for Person-Centreed Care (GPCC), Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ⁴Department of Internal Medicine, Södra Älvsborgs Hospital, Borås, Sweden, ⁵Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Department of Microbiology and Immunology, Gothenburg, Sweden

A. Berding*^{1, 2}, C. Witte¹, B. Kaltz¹, R. Weiland², A. Reusch², H. Faller²

¹German Crohn’s and Colitis Association (DCCV e.V.), Berlin, Germany, ²University of Würzburg, Department of Medical Psychology, Medical Sociology and Rehabilitation Sciences, Würzburg, Germany

L. Peyrin-Biroulet¹, J. Salleron², J. Filippi*³, C. Reenaers⁴, O. Antunes³, V. Filipe¹, E. Louis⁴, X. Hébuterne³, X. Roblin⁵

¹Nancy University Hospital, Université de Lorraine, Nancy 1, Inserm U954 and Department of Gastroenterology, Vandoeuvre-lès-Nancy, France, ²Institut de Cancérologie de Lorraine, Department of biostatistics, Vandoeuvre les Nancy, France, ³Archet 2 Hospital, University of Nice, Gastroenterology and Nutrition Department, Nice, France, ⁴University of Liège, Gastroenterology Department, Liège, Belgium, ⁵University hospital of Saint-Etienne, Inserm, CIC1408, Gastroenterology Department, Saint-Etienne, France

J. Martín-de-Carpi*¹, E. Llerena¹, M. Navalón-Rubio², G. Pujol Muncunill¹, D. Gil-Ortega², V. Varea¹, C. Sierra-Salinas³, V.M. Navas-López^{3, 4}

¹Unit for the Comprehensive Care of Paediatric Inflammatory Bowel Disease, Department of Paediatric Gastroenterology, Hepatology and Nutrition, Barcelona, Spain, ²Pediatric Gastroenterology Unit. Hospital Virgen de la Arrixaca, Murcia, Spain, ³Pediatric Gastroenterology and Nutrition Unit. Hospital Materno Infantil, Málaga, Spain, ⁴IBIMA, Biomedical Institute of Málaga, Málaga, Spain

M. Broekman*¹, M. Coenen², O. Klungel³, C. van Marrewijk², G. Wanten¹, L. Derijks⁴, S. Vermeulen^{2, 5}, D. Wong⁶, A. Verbeek⁵, P. Hooymans⁶, H. Scheffer², H.-J. Guchelaar⁷, M. Bouvy^{3, 8}, D. de Jong¹

¹Radboud University Medical Centre, Department of Gastroenterology, Nijmegen, Netherlands, ²Radboud University Medical Centre, Department of Human Genetics, Nijmegen, Netherlands, ³Utrecht University, Departement of Pharmacoepidemiology and Clinical Pharmacotherapy, Utrecht, Netherlands, ⁴Maxima Medical Centre Loc. Veldhoven, Department of Gastroenterology and Hepatology, Veldhoven, Netherlands, ⁵Radboud University Medical Centre, Radboud Institute for Health Sciences, Nijmegen, Netherlands, ⁶Zuyderland Medical Centre, Department of Clinical Pharmacy, Pharmacology and Toxicology, Sittard, Netherlands, ⁷Leiden University Medical Centre, Department of Clinical Pharmacy and Toxicology, Leiden, Netherlands, ⁸SIR institute for Pharmacy Practice and Policy, Leiden, Netherlands