How does the prevalence of inflammatory bowel disease (IBD) vary by sex?

Updated: Apr 10, 2020
  • Author: William A Rowe, MD; Chief Editor: BS Anand, MD  more...
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The male-to-female ratio is approximately 1:1 for ulcerative colitis and Crohn disease, with females having a slightly greater incidence. Both diseases are most commonly diagnosed in young adults (ie, late adolescence to the third decade of life).

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