Updated Microscopic Colitis Epidemiology (2011-2019)

J Tome et al. Clin Gastroenterol Hepatol 2022; 20: 1085-1094. Open Access: The Epidemiology of Microscopic Colitis in Olmsted County, Minnesota: Population-Based Study From 2011 to 2019

Key points:

  • “The overall incidence of MC in Olmsted County, MN, increased from 1985 to 2001, stabilized between 2002 and 2010, and continues to show a plateau between 2011 and 2019.”
  • Medications associated with a risk of microscopic colitis (MC) include statins, SSRIs, PPIs, aspirin, other NSAIDs, and histamine H2-receptor antagonists within 3 months of diagnosis. “A recent US multicenter cohort study found an inverse association with PPIs and histamine H2-receptor antagonists when compared with controls with chronic diarrhea; only NSAID use was associated with MC. 31 It is plausible these medications do not cause MC, but instead aggravate diarrhea and bring the diagnosis to clinical attention.”

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