1. Volume 132, Issue 2, Pages 507-515 (February 2007)
Low Colectomy Rates in Ulcerative Colitis in an Unselected European Cohort Followed for 10 Years 
Ole Hoie, Frank L. Wolters, Lene Riis, Tomm Bernklev, Geir Aamodt, Juan Clofent, Epaminondas Tsianos, Marina Beltrami, Selwyn Odes, Pia Munkholm, Morten Vatn, Reinhold W. Stockbrügger, Bjorn Moum 
Gastroenterology 
Volume 132, Issue 2, Pages (February 2007)
DOI: /j.gastro
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2. Figure 1
Cumulative rate of colectomy. After 10 years, for Denmark, (—) 25.7%; for The Netherlands and Norway (----), 8.2%; and for the southern centers (-.-), 3.9%. After 2 years, for Denmark, 18.3%; for the remaining northern centers, 4.7%; for the southern centers, 2.6%. For all patients, P < .001; for The Netherlands, Norway, and southern centers, P = N, number of patients.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2007 AGA Institute Terms and Conditions

3. Figure 2
Cumulative percentages of surgery in the 42 of 65 patients operated on during the first 2 years, in Denmark (—), The Netherlands and Norway (---), and southern centers (-.-). The cumulative percentages were 76% for Denmark, 56% for The Netherlands and Norway, and 70% for the southern centers (P = .16). N, cumulative number of colectomies.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2007 AGA Institute Terms and Conditions