1. Volume 145, Issue 5, Pages 996-1006 (November 2013)
Risk of Surgery for Inflammatory Bowel Diseases Has Decreased Over Time: A Systematic Review and Meta-analysis of Population-Based Studies 
Alexandra D. Frolkis, Jonathan Dykeman, María E. Negrón, Jennifer deBruyn, Nathalie Jette, Kirsten M. Fiest, Talia Frolkis, Herman W. Barkema, Kevin P. Rioux, Remo Panaccione, Subrata Ghosh, Samuel Wiebe, Gilaad G. Kaplan 
Gastroenterology 
Volume 145, Issue 5, Pages (November 2013)
DOI: /j.gastro
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2. Figure 1 Details of study selection for review.
Gastroenterology  , DOI: ( /j.gastro )
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3. Figure 2
Forest plot using random effects models for all included studies for risk of surgery (A) 1 year, (B) 5 years, and (C) 10 years after diagnosis of Crohn’s disease.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2013 AGA Institute Terms and Conditions

4. Figure 3
Forest plot using random effects models for all included studies for risk of surgery (A) 1 year, (B) 5 years, and (C) 10 years after diagnosis of ulcerative colitis.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2013 AGA Institute Terms and Conditions

5. Figure 4
Stratified analyses of potential sources of heterogeneity in the assessment of the cumulative surgical risk at 1, 5, and 10 years after diagnosis of Crohn’s disease and ulcerative colitis.
Gastroenterology  , DOI: ( /j.gastro )
Copyright © 2013 AGA Institute Terms and Conditions