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The elevated risk for stroke after a transient ischemic attack (TIA) presents an important opportunity for interventions to prevent an impending stroke. Simple risk stratification scores, such as the ABCD2 score, which includes just five elements (Age, Blood pressure, Clinical features, Duration of symptoms, and Diabetes) are validated for clinical use and for clinical research. But with simplicity also comes certain limitations on predictive power. The Canadian TIA Score was previously derived to stratify the short-term stroke risk after TIA. This score is composed of points for 13 clinical variables that are summed to produce a total score between –3 and +23. The variables include symptoms ≥10 minutes (+2 points), history of vertigo (–3 p…