Of the 2726 patients with a description of their lesion extent, 14.8% had proctitis, 26.4% had proctosigmoiditis, 25.0% had left-sided colitis, 6.3% had extensive colitis, 25.8% had pancolitis and ...

At baseline, the median patient age was 37.6 years, with 40.5% female. Most patients had extensive disease—50.5% with pancolitis and 43.2% with left-sided colitis.