Who is affected by Crohn's disease

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Who is affected by Crohn's disease

Crohn's disease occurs most frequently in North America and Europe, especially in the northern latitudes of these locations. It is rare in much of South America and Africa (except for South Africa).¹

Slightly more women than men have Crohn's disease. The disease tends to affect younger people, with most diagnoses occurring between ages 15 and 30. Another small peak of diagnosis occurs in people between 60 and 80 years of age.²

Crohn's disease is more common among smokers than nonsmokers.

References

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Citations
Sands BE (2006). Crohn's disease. In M Feldman et al., eds., Sleisenger and Fordtran's Gastrointestinal and Liver Disease, 8th ed., vol. 2, pp. 2459–2498. Philadelphia: Saunders Elsevier.
Friedman S, Lichtenstein GR (2006). Crohn's disease. In MM Wolfe et al., eds., Therapy of Digestive Disorders, 2nd ed., pp. 785–801. Philadelphia: Saunders Elsevier.

Credits

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Author	Monica Rhodes
Editor	Kathleen M. Ariss, MS
Associate Editor	Pat Truman, MATC
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer	Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology
Last Updated	October 9, 2008

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Last updated:	October 09, 2008
Author:	Monica Rhodes
Reviewed By:	Kathleen Romito, MD - Family Medicine, Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology
Editors:	Kathleen M. Ariss, MS, Pat Truman, MATC

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