Baseline and procedural characteristics
| Characteristic | Proximal (ICA) group (n=70) | Distal (non-ICA) group (n=112) | P value |
| Demographics | |||
| Age (years), mean (SD) | 57.4 (11.0) | 62.1 (11.3) | 0.03 |
| Male, n (%) | 10 (14.3) | 39 (34.8) | 0.006 |
| White, n (%) | 55 (78.6) | 92 (82.1) | 0.44 |
| Aneurysm characteristics, mean (SD) | |||
| Aneurysm neck width (mm) | 4.0 (1.1) | 4.2 (1.3) | 0.27 |
| Aneurysm size (mm) | 0 (2.0) | 6.2 (2.3) | 0.35 |
| Dome-to-neck ratio | 1.2 (0.3) | 1.1 (0.3) | 0.25 |
| Parent vessel diameter proximal to the aneurysm neck (mm) | 3.7 (0.5) | 2.6 (0.5) | <0.0001 |
| Parent vessel diameter distal to the aneurysm neck (mm) | 3.4 (0.5) | 2.3 (0.4) | <0.0001 |
| Previously ruptured aneurysm treatment, n (%) | 6 (8.6) | 16 (14.3) | 0.23* |
| Coiling only | 5 (83.3) | 11 (68.8) | |
| Balloon-assisted coiling | 1 (16.7) | 0 (0.0) | |
| Other | 0 (0.0) | 5 (31.2) | |
| Procedural technical success, n (%) | 70 (100.0) | 112 (100.0) | N/A |
| Stents implanted, n (%) | 0.07 | ||
| 1 | 66 (94.3) | 87 (77.7) | |
| 2 | 4 (5.7) | 25 (22.3) | |
| Immediate Raymond Class (core lab), n (%) | 0.26 | ||
| 1 | 52 (76.5) | 88 (78.6) | |
| 2 | 14 (20.6) | 14 (12.5) | |
| 3 | 2 (2.9) | 10 (8.9) | |
| Raymond Class 1 and 2 combined, n (%) | 66 (97.1) | 102 (91.1) | 0.14 |
Values in bold type indicate statistical significance.
*Comparison of whether there was previous treatment, regardless of treatment modality.
N/A, not available.