Table 3 Rate of Procedures, Mechanical Circulatory Support, and Mortality (2003–2009)
Competitive / Unconcentrated | Moderately Concentrated | Highly Concentrated | p-value | |
|---|---|---|---|---|
(n = 10,873) | (n = 6526) | (n = 15,007) | ||
Mechanical circulatory support | 5087 (46.8%) | 2933 (44.9%) | 6676 (44.5%) | < 0.01 |
Percutaneous devices | 45 (0.4%) | 15 (0.2%) | 7 (0.1%) | < 0.01 |
Nonpercutaneous devices | 42 (0.4%) | 21 (0.3%) | 26 (0.2%) | < 0.01 |
Intraaortic balloon pump | 5024 (46.2%) | 2918 (44.7%) | 6647 (44.3%) | < 0.01 |
Extracorporeal membrane oxygenation | 68 (0.6%) | 4 (0.1%) | 13 (0.1%) | < 0.01 |
Procedures | ||||
Coronary angiography | 7103 (65.3%) | 4280 (65.6%) | 10,037 (66.9%) | 0.02 |
Right heart catheterization | 441 (4.1%) | 144 (2.2%) | 238 (1.6%) | < 0.01 |
Percutaneous coronary intervention | 4753 (43.7%) | 2719 (41.7%) | 6748 (45.0%) | < 0.01 |
Coronary artery bypass graft | 2251 (20.7%) | 1389 (21.3%) | 2489 (16.6%) | < 0.01 |
In-hospital mortality | 3997 (36.8%) | 2434 (37.3%) | 5545 (36.9%) | 0.77 |