Table 1.

Predefined focal and nonfocal neurological symptoms.

Focal	Nonfocal
Hemiparesis	Decreased consciousness or unconsciousness
Hemihypesthesia	Confusion
Dysphasia	Amnesia
Dysarthria	Unsteadiness
Hemianopia	Nonrotatory dizziness
Transient monocular blindness	Positive visual phenomena
Hemiataxia	Paresthesias
Diplopia	Bilateral weakness of arms or legs
Vertigo	Unwell feelings∗

Symptoms should have sudden onset, rapid clearance, and duration of <24 hours. ^∗Referable to the nervous system if the referring physician considered TIA but patients were unable to specify further.