Table 1.

Factors Associated With High Risk of Relapse, Surgery, or Complicated Luminal CD

Clinical factors	Younger age Smoking Longer disease duration Early use of corticosteroids Presence of fistulizing perianal CD Previous intestinal resection
Disease factors	Disease location (rectal, upper GI, jejunal) Disease extent
Laboratory factors	Low hemoglobin Low albumin High C-reactive protein (CRP) High fecal calprotectin levels
Endoscopic factors	Presence of deep ulceration

CD, Crohn’s disease; GI, gastrointestinal.