Table 2.

Clinical, demographic and endoscopic prognostic predictors in ulcerative colitis (UC) and the associated impact on disease course.

Prognostic factor	Impact on disease course
Ulcerative colitis
Young age at diagnosis	• Complicated UC (including colectomy)12
Male gender	• Colectomy20, 21
Extensive colitis	• Complicated UC (including colectomy)4, 12, 13
Severe disease activity at diagnosis	• Colectomy20
High histological inflammation score	• Colectomy19
Disease duration > 10 years	• Colectomy20
Steroid use	• Colectomy19
Steroid resistance	• Colectomy20
Primary sclerosing cholangitis	• Complicated UC (colorectal cancer)17