Table 2.
Procedural risk for stroke or death expressed as crude risks over time
| Year of treatment | All patients (n = 4,597) | Endarterectomy (n = 2,271) | Stenting (n = 2,326) | |||
|---|---|---|---|---|---|---|
| N Patients | N (%) | N Patients | N (%) | N patients | N (%) | |
| 2000–2002 n (%) | 560 | 43 (7.7%) | 280 | 20 (7.1%) | 280 | 23 (8.2%) |
| 2003 n (%) | 659 | 43 (6.5%) | 330 | 18 (5.5%) | 329 | 25 (7.6%) |
| 2004 n (%) | 825 | 37 (4.5%) | 411 | 13 (3.2%) | 414 | 24 (5.8%) |
| 2005 n (%) | 919 | 58 (6.3%) | 439 | 14 (3.2%) | 480 | 44 (9.2%) |
| 2006 n (%) | 630 | 37 (5.9%) | 310 | 13 (4.2%) | 320 | 24 (7.5%) |
| 2007–2008 n (%) | 1004 | 39 (3.9%) | 501 | 10 (2.0%) | 503 | 29 (5.8%) |
| Total | 4597 | 257 (5.6%) | 2271 | 88 (3.9%) | 2326 | 169 (7.3%) |
Total numbers of patients recruited, as well as numbers of patients and crude percentages of patients with the primary outcome measure per year for all patients, patients treated with endarterectomy and patients treated with carotid stenting separately. The years 2000–2003 and 2007–2008 were pooled due to the relatively small number of patients enrolled.