Figure 2. Distribution of 90-Day Modified Rankin Scale (mRS) Score Among Patients With Carotid Artery Stenting and Nonstenting.

Scores range from 0 to 6, with 0 indicating no symptoms; 1, no clinically significant disability; 2, slight disability (the patient is able to look after own affairs without assistance but unable to perform all previous activities); 3, moderate disability (patient requires some help but is able to walk unassisted); 4, moderately severe disability (patient is unable to attend to bodily needs without assistance and unable to walk unassisted); 5, severe disability (patient requires constant nursing care and attention); and 6, death.