Need for surgery in Crohn's disease patients with and without an early limited surgery after matching on propensity scores. A: All Crohn's disease (CD) patients (n = 58), PLogrank < 0.001, HR = 0.23, 95%CI: 0.11-0.48; B: CD patients with ileal only disease location (n = 38). PLogrank < 0.001, HR = 0.25, 95%CI: 0.11-0.58.