Table 2

 Scoring system for assessment of ulcerative colitis activity*

*Referred from Schroeder and colleagues28 and Sutherland and colleagues.29
†Each patient served as his or her own control to establish the degree of abnormality of the stool frequency.
‡The daily bleeding score represented the most severe bleeding of the day.
§A score of zero in physician’s global impression meant there were no symptoms of colitis, the score of bowel movements, blood in stool, and endoscopic findings was zero. A score of 1 indicated mild symptoms or endoscopic findings that were mildly abnormal. A score of 2 reflected more serious abnormalities, and endoscopic and symptom scores of 1 to 2. A score of 3 indicated that endoscopic and symptom scores were 2–3.
Stool frequency†
    0  =  Normal number of stools for this patient
    1  =  1–2 stools more than normal
    2  =  3–4 stools more than normal
    3  =  5 or more stools more than normal
Rectal bleeding‡
    0  =  No blood seen
    1  =  Streaks of blood with stool less than half the time
    2  =  Obvious blood with stool most of the time
    3  =  Blood alone passed
Mucosal appearance
    0  =  Normal or inactive disease
    1  =  Mild disease (erythema, decreased vascular pattern, mild friability)
    2  =  Moderate disease (marked erythema, absent vascular pattern, friability, erosions)
    3  =  Severe disease (spontaneous bleeding, ulceration)
Physician’s global assessment§
    0  =  Normal
    1  =  Mild disease
    2  =  Moderate disease
    3  =  Severe disease