Age

≤ 59 years+060–69 years (+1 pt)+170–79 years (+2 pts)+2≥ 80 years (+3 pts)+3

Male Sex

Female+0Male (+2 pts)+2

Systolic BP at First Assessment

< 140 mmHg+1140–149 mmHg+0≥ 150 mmHg (−1 pt)-1

Diabetes

No+0Yes (+1 pt)+1

Duration of Symptoms

1–9 minutes+110–59 minutes+0≥ 60 minutes (−1 pt)-1

Ipsilateral Carotid Stenosis ≥ 50%

No or not applicable (posterior circulation)+0Yes (−3 pts)-3

MRI DWI Abnormality (Acute Ischemic Lesion)

No DWI lesion or MRI not performed+0DWI lesion present (−3 pts)-3

Presentation Within 2 Hours of Symptom Onset

Presenting > 2 hours after onset+0Presenting ≤ 2 hours from onset (+1 pt)+1

Canadian TIA Score