Table II.
Hazard ratio and 95% confidence interval for 30-day and 4-year stroke and death by asymptomatic category in the pooled CAS+CEA population.
| AA # events (% ± SE) |
PS # events (% ± SE) |
HR (95% CI) AA vs PS |
P-value | |
|---|---|---|---|---|
| Stroke and death endpoint (30-day) | 19 (1.9±0.4) |
1 (1.3±1.3) |
1.60 (0.21, 11.97) |
0.65 |
| Stroke and death endpoint (4-year) | 32 (3.7±0.7) |
2 (3.1±2.2) |
1.37 (0.33, 5.71) |
0.67 |
AA, always asymptomatic; CAS, carotid artery stenting; CEA, carotid endarterectomy; HR, hazard ratio; PS, previously symptomatic; SE, standard error.