Table 1.
Description of sites overall, sites approved for randomization (“green-lighted”) and sites that have randomized (n and (%) of sites).
| All | Approved for Randomization | Randomized 1 or more patients | ||
|---|---|---|---|---|
| Number of Sites | 147 | 122 | 89 | |
| PI Specialty | Interventional Radiology/Neuroradiology | 6 (4%) | 6 (5%) | 4 (4%) |
| Neurology | 43 (29%) | 33 (27%) | 21 (24%) | |
| Neurosurgery | 14 (10%) | 8 (7%) | 7 (8%) | |
| Vascular Surgery | 44 (30%) | 40 (33%) | 31 (35%) | |
| Cardiology | 40 (27%) | 35 (29%) | 26 (29%) | |
| Site Type | Private Hospital | 50 (34%) | 39 (32%) | 24 (27%) |
| Private office | 18 (12%) | 17 (14%) | 16 (18%) | |
| VA Medical Center | 8 (5%) | 7 (6%) | 6 (7%) | |
| Academic | 71 (48%) | 59 (48%) | 43 (48%) | |
| Affiliates | Yes | 45 (31%) | 33 (27%) | 22 (25%) |
| No | 102 (69%) | 89 (73%) | 67 (75%) | |
| StrokeNET Membership | StrokeNET | 57 (39%) | 46 (38%) | 33 (37%) |
| Non-StrokeNET | 90 (61%) | 75 (62%) | 56 (63%) | |
| CIRB | Yes | 75 (51%) | 62 (51%) | 46 (52%) |
| No | 72 (49%) | 60 (49%) | 43 (48%) | |
| Team Complement | Full | 123 (84%) | 105 (86%) | 77 (87%) |
| Partial | 24 (16%) | 17 (14%) | 12 (13%) | |
| Annual number of CEA | <10 | 10 (7%) | 8 (7%) | 7 (8%) |
| 10–25 | 14 (10%) | 11 (9%) | 5 (6%) | |
| 26–50 | 35 (24%) | 30 (25%) | 20 (22%) | |
| >50 | 88 (60%) | 73 (60%) | 57 (64%) | |
| Annual number of CAS | <10 | 29 (20%) | 23 (19%) | 15 (17%) |
| 10–25 | 48 (33%) | 40 (33%) | 31 (35%) | |
| 26–50 | 41 (28%) | 35 (29%) | 26 (29%) | |
| >50 | 29 (20%) | 24 (20%) | 17 (19%) | |
| Study approval by the site selection committee | CAS only | 8 (5%) | 5 (4%) | 5 (6%) |
| CEA only | 11 (7%) | 8 (7%) | 4 (4%) | |
| Both | 128 (87%) | 109 (89%) | 80 (90%) | |
| Study participation to randomize | Neither | 25 (17%) | 0 (0%) | 0 (0%) |
| CAS only | 9 (6%) | 9 (7%) | 7 (8%) | |
| CEA only | 39 (27%) | 39 (32%) | 19 (21%) | |
| Both | 74 (50%) | 74 (61%) | 63 (71%) | |
| Participation in CREST | Top Half | 36 (24%) | 35 (29%) | 29 (33%) |
| Bottom Half | 35 (24%) | 29 (24%) | 22 (24%) | |
| Not in CREST | 76 (52%) | 58 (48%) | 39 (44%) | |