Summary statements		Agreement [score 7–9], n/N [%]
1	Younger age at diagnosis [adults <40 years] increases risk of surgery [EL2]; in paediatric patients, younger children have lower risk for surgical resection [EL3].	85/96 [89%]
2	Disease located in the small bowel carries a higher risk for surgery than isolated colonic disease [EL2].	86/90 [96%]
3	Penetrating and stricturing phenotypes at diagnosis are independent risk factors for surgery [EL2].	92/99 [93%]
4	Extensive and deep ulcers at colonoscopy in patients with colonic CD may predict the need for surgery [EL4].	79/88 [90%]
5	NOD2/CARD15 polymorphisms and/or anti-Saccharomyces cerevisiae antibodies [ASCA]-positive status may be associated with an increased risk of surgery [EL2].	72/82 [90%]