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Data and Statistics

Inflammatory Bowel Disease Prevalence (IBD) in the United States

In 2015, an estimated 1.3% of US adults (3 million) reported being diagnosed with IBD (either Crohn’s disease or ulcerative colitis).1 This was a large increase from 1999 (0.9% or 2 million adults).2

Some people were more likely to report having IBD, including those:

  • Aged 45 years or older.
  • Hispanic or non-Hispanic white.
  • With less than a high school level of education.
  • Not currently employed.
  • Born in the United States (compared with adults born outside of the United States).
  • Living in poverty.
  • Living in suburban areas.

This estimate does not include children younger than18 years, who may also have IBD. Most people with IBD are diagnosed in their 20s and 30s.

On the basis of the National Inpatient Sample data, there was no significant change in the hospitalization rate when Crohn’s disease was the primary diagnosis from 2003 to 2013. The hospitalization rate, however, increased significantly during this period from 44.2 to 59.7 per 100,000 population when it was listed as any secondary diagnosis.3

Compared with adults without IBD, those with IBD are more likely to have certain chronic health conditions that include:

  • Cardiovascular disease (CVD).
  • Respiratory disease.
  • Cancer.
  • Arthritis.
  • Kidney disease.
  • Liver disease.4

In addition, clinicians should be aware of potential health-risk behaviors that are more prevalent among adults with IBD than those without, such as:

  • Not getting enough sleep.
  • Not meeting aerobic nor muscle-strengthening physical activity guidelines.4

References

  1. Dahlhamer JM, Zammitti EP, Ward BW, Wheaton AG, Croft JB. Prevalence of inflammatory bowel disease among adults aged ≥18 years—United States, 2015. MMWR Morb Mortal Wkly Rep. 2016;65(42):1166–1169. https://www.cdc.gov/mmwr/volumes/65/wr/mm6542a3.htm. Accessed May 2, 2018.
  2. Nguyen GC, Chong CA, Chong RY. National estimates of the burden of inflammatory bowel disease among racial and ethnic groups in the United States. J Crohns Colitis. 2014;8:288–295. DOI: https://academic.oup.com/ecco-jcc/article/8/4/288/386357. Accessed May 2, 2018.
  3. Malarcher CA, Wheaton AG, Liu Y et al. Hospitalization for Crohn’s Disease—United States, 2003–2013. MMWR. 2017;66(14):377-381. https://www.cdc.gov/mmwr/volumes/66/wr/mm6614a1.htm. Accessed May 2, 2018.
  4. Xu F, Dahlhamer JM, Zammitti EP, Wheaton AG, Croft JB. Health-risk behaviors and chronic conditions among adults with Inflammatory Bowel Disease—United States, 2015 and 2016. MMWR Morb Mortal Wkly Rep. 2018;67(6):190–195. https://www.cdc.gov/mmwr/volumes/67/wr/mm6706a4.htm. Accessed May 2, 2018.
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