Patient characteristics for groups A and B
| Group A (Stenosis) | Group B (Healthy) | P Value | |
|---|---|---|---|
| No. | 70 | 56 | |
| Age (yr) | 73.6 ± 11.6 | 65.6 ± 10.2 | <.001a |
| Heart rate (beats/min) | 69.9 ± 17.2 | 72.6 ± 12.3 | 0.312 |
| Blood pressure (mm Hg) | 92.8 ± 19.9 | 97.6 ± 18.5 | 0.124 |
| Stenotic degree (%) | 81.4% | NA | NA |
| Prior minor stroke | 19 (27%) | 1 (1.7%) | <.001a |
Note:—NA indicates not applicable.
↵a Statistically significant (t test, P < .05). There was no measurable stenosis in the healthy (control) population.