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Figure 1 | BMC Gastroenterology

Figure 1

From: Risk of inflammatory bowel disease following a diagnosis of irritable bowel syndrome

Figure 1

Flow diagram of study population. IBS: irritable bowel syndrome; IBD: inflammatory bowel disease; CD: Crohn’s disease; UC: ulcerative colitis; IC: indeterminate colitis. * Well-defined IBS: initial IBS diagnosis, a subsequent medical encounter (≤12 months) with sigmoidoscopy and/or diagnostic colonoscopy and a subsequent medical encounter (≤ 12 months) with an additional ICD-9 code of IBS with no IBD medical encounters.

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