TABLE 1.

Prognostic Groups—Inclusion Criteria

	Mild UC	Moderate UC	Severe UC
IV steroid requirement	Never	Allowed, but less than twice during initial 2 years	Twice or more during initial 2 years
Colectomy	No, except for cancer/ dysplasia	Only for chronic active disease	For IV steroid failure, toxic megacolon or massive bleeding
Biological therapy	Never	Not as inpatient	Induction only as inpatient
Cumulative duration of prednisone use	Less than 3 months	More than 3 months	NA

IV, intravenous; NA, not applicable.