Abstract
We followed 9602 patients with Crohn’s disease or ulcerative colitis for anal squamous cell carcinoma for up to 18 years. No significant increase was observed: two cases occurred vs 1.3 expected during 99 229 person-years of observation, (standardized incidence ratio = 1.6; 95 confidence interval: 0.2–5.7). Anal squamous cell carcinoma is rare even in inflammatory bowel disease. © 2000 Cancer Research Campaign
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16 November 2011
This paper was modified 12 months after initial publication to switch to Creative Commons licence terms, as noted at publication
References
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From twelve months after its original publication, this work is licensed under the Creative Commons Attribution-NonCommercial-Share Alike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
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Frisch, M., Johansen, C. Anal carcinoma in inflammatory bowel disease. Br J Cancer 83, 89–90 (2000). https://doi.org/10.1054/bjoc.2000.1153
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DOI: https://doi.org/10.1054/bjoc.2000.1153
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