Who is affected by transient ischemic attack

The exact number of people who have had a transient ischemic attack (TIA) is not known for certain, because people do not always recognize a TIA nor do they always seek medical help when they experience symptoms.

The following table estimates the prevalence of TIA by gender and age.1

Prevalence of TIA by gender and age
  Age Percentage who have had a TIA
Men 65–69 2.7%
75–79 3.6%
Women 65–69 1.6%
75–79 4.1%


  1. American Heart Association (2006). Heart disease and stroke statistics—2006 update. Circulation, 113(6): e85–e151.

Last Updated: November 11, 2009

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