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Table 2 Disease and treatment characteristics of respondents with Crohn's disease and Ulcerative colitis

From: A national survey on the patterns of treatment of inflammatory bowel disease in Canada

Characteristic Crohn's disease Ulcerative colitis 95% CI for difference (P value)
Disease duration, mean (± SD) 18.4 years (10.7) 14.8 years (9.8) 2.8 to 4.4 (<0.001)
Ever hospitalized, n (%) 1494 (83.6%) 464 (50.8%) 29.1 to 36.5% (<0.001)
Number of hospitalizations past 5 years, mean (± SD) 2.7 (3.0) 1.9 (1.9) 0.5 to 1.1 (<0.001)
Ever surgery, n (%) 1159 (64.9%) 142 (15.6%) 46.1 to 52.5% (<0.001)
Surgery within the past 2 years 255 (14.3%) 44 (4.8%) 7.3 to 11.6% (<0.001)
Disease Activity, n (%)    
   Inactive 329 (18.4%) 241 (26.4%) -11.4 to -0.6% (<0.001)
   Mild 607 (34.0%) 299 (32.8%) -2.5 to 5.0% (0.547)
   Moderate 616 (34.5%) 268 (29.4%) 1.4 to 8.8% (0.007)
   Severe 204 (11.4%) 82 (8.9%) 0.1 to 4.8% (0.055)