Clinical Course in Crohn’s Disease: Results of a Norwegian Population-Based Ten-Year Follow-Up Study  Inger Camilla Solberg, Morten H. Vatn, Ole Høie, Njaal Stray, Jostein Sauar, Jørgen Jahnsen, Bjørn Moum, Idar Lygren  Clinical Gastroenterology and Hepatology  Volume 5, Issue 12, Pages 1430-1438 (December 2007) DOI: 10.1016/j.cgh.2007.09.002 Copyright © 2007 AGA Institute Terms and Conditions

Figure 1 Four predefined curves reflecting different patterns of CD in terms of the severity of bowel symptoms from diagnosis to 10-year follow-up. Clinical Gastroenterology and Hepatology 2007 5, 1430-1438DOI: (10.1016/j.cgh.2007.09.002) Copyright © 2007 AGA Institute Terms and Conditions

Figure 2 Flow chart of the study population; final diagnosis in relation to initial diagnosis. Clinical Gastroenterology and Hepatology 2007 5, 1430-1438DOI: (10.1016/j.cgh.2007.09.002) Copyright © 2007 AGA Institute Terms and Conditions

Figure 3 Cumulative drug consumption after initial treatment in CD patients during the first 5-year period (patterned bars) vs the second 5-year period (grey bars). (), percentage of total number. Clinical Gastroenterology and Hepatology 2007 5, 1430-1438DOI: (10.1016/j.cgh.2007.09.002) Copyright © 2007 AGA Institute Terms and Conditions

Figure 4 Kaplan–Meier one-minus survival curve showing the cumulative probability of surgery for the total group of CD patients during follow-up; it was 13.6% (95% CI, 9.0%–17.6%), 27.0% (95% CI, 21.3%–32.7%), and 37.9% (95% CI, 31.4%–44.4%) at 1, 5, and 10 years. N, total number at risk; Events, number of patients with first surgery. Clinical Gastroenterology and Hepatology 2007 5, 1430-1438DOI: (10.1016/j.cgh.2007.09.002) Copyright © 2007 AGA Institute Terms and Conditions