Variable | Non-stroke (n = 36) | Posterior circulation TIA/Stroke (n = 51) | p-value |
---|---|---|---|
Age (mean years (SD)) | 61 (16) | 65 (15) | 0.178 |
Sex (n (% male)) | 16 (44 %) | 34 (67 %) | 0.039 |
Race (n (% black)) | 4 (11 %) | 11 (22 %) | 0.203 |
Systolic blood pressure (mean mmHg (SD)) | 149 (24) | 158 (22) | 0.093 |
Vascular Risk Factors (n (%)) | |||
Coronary artery disease | 6 (17 %) | 12 (24 %) | 0.436 |
Diabetes | 8 (22 %) | 15 (29 %) | 0.454 |
Hypertension | 24 (67 %) | 35 (69 %) | 0.847 |
Hyperlipidemia | 17 (47 %) | 28 (55 %) | 0.480 |
History of smoking | 28 (50 %) | 32 (63 %) | 0.371 |
Neurologic Deficits (n (%)) | |||
Dysarthria | 2 (5 %) | 21 (41 %) | <0.0001 |
Diplopia | 8 (22 %) | 10 (20 %) | 0.665 |
Facial droop | 0 (<1 %) | 23 (45 %) | <0.0001 |
Unilateral symptomsa | 8 (22 %) | 34 (67 %) | <0.0001 |
Any calcium on CTA (n) | 24 (67 %) | 36 (71 %) | 0.697 |
Specific distribution of calcium on CTA (n) | |||
Proximal vertebral artery | 5 (14 %) | 8 (16 %) | 0.817 |
Distal vertebral artery | 2 (6 %) | 5 (10 %) | 0.473 |
Basilar artery | 0 (<1 %) | 3 (6 %) | 0.139 |
Proximal carotid artery | 14 (39 %) | 25 (49 %) | 0.349 |
Distal carotid artery | 10 (28 %) | 30 (59 %) | 0.004 |
Aortic arch | 15 (42 %) | 26 (51 %) | 0.391 |