What is the incidence of transient ischemic attack (TIA) in the US?

Updated: Dec 03, 2018
  • Author: Ashish Nanda, MD; Chief Editor: Andrew K Chang, MD, MS  more...
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Answer

Between 200,000 and 500,000 TIAs are diagnosed annually in the United States. [9, 10] Emergency department (ED) visits for TIAs occur at an approximate rate of 1.1 per 1000 US population, and TIAs are diagnosed in 0.3% of ED visits. [11] TIA carries a particularly high short-term risk of stroke, and approximately 15% of diagnosed strokes are preceded by TIAs.


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