Table 2.
Aneurysmal coiling vs. clipping by admission severity of illness (SOI) in each US region.
| Region | Coiling | Clipping | p-value |
|---|---|---|---|
| Coiling vs. clipping by admission severity of illness (SOI) | |||
| Minor SOI (n; Northeast = 1,047, Midwest = 1,002, South = 1,384, | |||
| West = 513) | |||
| Northeast | 319 (30.4) | <5 | |
| Midwest | 320 (31.9) | <5 | |
| South | 455 (32.9) | <5 | |
| West | 149 (29.1) | <5 | |
| Moderate SOI (n; Northeast = 2,832, Midwest = 2,748, South = 3,830, | |||
| West = 1,903) | |||
| Northeast | 563 (19.9) | 397 (14.0) | <0.0001 |
| Midwest | 544 (19.8) | 532 (19.3) | 0.928 |
| South | 827 (21.6) | 687 (17.9) | 0.0004 |
| West | 292 (15.3) | 540 (28.4) | <0.0001 |
| Major SOI (n; Northeast = 14,107, Midwest = 13,998, South = 18,623, | |||
| West = 8,963) | |||
| Northeast | 1131 (8.0) | 1397 (9.9) | <0.0001 |
| Midwest | 1136 (8.1) | 2122 (15.2) | <0.0001 |
| South | 1614 (8.7) | 2551 (13.7) | <0.0001 |
| West | 599 (6.7) | 1782 (19.9) | <0.0001 |
| Extreme SOI (n; Northeast = 8,144, Midwest = 8,389, South = 13,250, | |||
| West = 5,570) | |||
| Northeast | 632 (7.8) | 524 (6.4) | 0.004 |
| Midwest | 572 (6.8) | 696 (8.3) | 0.0001 |
| South | 1096 (8.3) | 1258 (9.5) | 0.0001 |
| West | 346 (6.2) | 679 (12.2) | <0.0001 |