Demographics | All patients | Group 1 | P value | Group 2 | Group 3 | P value |
N | 250 | 153 | 77 | 20 | ||
Age, years | 72.3 | 72.1 | 0.99 | 72.2 | 74 | 0.59 |
Female (%) | 57% | 55% | 0.57 | 60% | 60% | 1 |
NIHSS | 17.7 | 16.7 | 0.43 | 19.0 | 20.2 | 0.38 |
tPA (%) | 36% | 35% | 0.88 | 36% | 40% | 0.80 |
ASPECTS | 8.7 | 8.9 | 0.02 | 8.4 | 8.6 | 0.67 |
Time from symptom onset (minutes) | 420 | 0.55 | 462 | 504 | 0.77 | |
Occlusion location | 0.23 | 0.94 | ||||
ICA terminus | 26% | 22% | 32% | 35% | ||
M1 | 58% | 60% | 55% | 50% | ||
M2 | 16% | 18% | 13% | 15% | ||
Comorbid conditions | ||||||
Hypertension | 76% | 76% | 0.87 | 78% | 75% | 0.77 |
Prior TIA/stroke | 17% | 16% | 0.36 | 21% | 10% | 0.35 |
Tobacco user | 22% | 23% | 0.31 | 17% | 30% | 0.20 |
Atrial fibrillation | 44% | 46% | 0.78 | 48% | 20% | 0.04 |
Diabetes mellitus | 22% | 23% | 0.61 | 19% | 20% | 1 |
Coronary artery disease | 31% | 35% | 0.30 | 27% | 15% | 0.38 |
ETOH abuse | 6% | 8% | 0.40 | 4% | 0% | 0.61 |
Hyperlipidemia | 56% | 56% | 0.78 | 58% | 45% | 0.44 |
Reported p values are compared with the reference group (group 2).
ASPECTS, Alberta Stroke Program Early CT Score; ETOH, ethanol; ICA, internal carotid artery; NIHSS, National Institutes of Health Stroke Scale; TIA, transient ischemic attack; tPA, tissue plasminogen activator.