Table 4.
Independent predictors of risk of stroke, MI or death within 30 days of carotid artery stenting in 748 ICSS per-protocol participants in whom the procedure was initiated and for whom complete predictor data are available. Results obtained from multivariable binomial regression.
| Variable | No. events/no. patientsa | Adjusted risk ratio (95% CI) | Global p |
|---|---|---|---|
| Age (per 5 years increase) | 59/748 | 1.17 (1.01–1.37) | .039 |
| Smoking status | |||
| Never | 23/207 | 1.00 | .030 |
| Former | 31/359 | 0.86 (0.52–1.43) | |
| Current | 5/182 | 0.33 (0.13–0.85) | |
| Nature of ipsilateral index event | |||
| Stroke | 31/347 | 1.00 | .019 |
| Retinal stroke | 5/24 | 2.47 (1.11–5.52) | |
| TIA | 20/242 | 0.99 (0.58–1.68) | |
| Amaurosis fugax | 3/135 | 0.32 (0.10–1.02) | |
| Side of procedure | |||
| Left | 40/394 | 1.00 | .020 |
| Right | 19/354 | 0.54 (0.32–0.91) | |
| Antiplatelet regimen pre-procedure | |||
| Any other antiplatelet | 19/165 | 1.00 | .042 |
| Aspirin and clopidogrel in combination | 40/583 | 0.59 (0.36–0.98) | |
a
Patients with data available included in the multivariable model.