Table 2. Hospital Characteristics by Quartiles of Risk-Standardized Echocardiography Rates.
| Hospital Characteristic | Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | P Valuea |
|---|---|---|---|---|---|
| Risk-standardized echocardiography rate, % median (range) | 54 (3.2-62.5) | 67 (62.6-72.4) | 76 (72.5-79.1) | 83 (79.1-94.3) | NA |
| No. of hospitals | 99 | 99 | 100 | 99 | |
| Hospital size, beds | |||||
| ≤200 | 34 (34.3) | 32 (32.3) | 36 (36.0) | 25 (25.2) | .10 |
| 201-400 | 48 (48.5) | 30 (30.3) | 37 (37.0) | 45 (45.4) | |
| ≥401 | 17 (17.2) | 37 (37.4) | 27 (27.0) | 29 (29.3) | |
| Urban location | 77 (77.8) | 75 (75.8) | 83 (83.0) | 80 (80.8) | .60 |
| Teaching hospital | 28 (28.3) | 34 (34.3) | 31 (31.0) | 28 (28.3) | .99 |
| Hospital region | |||||
| Northeast | 9 (9.1) | 18 (18.2) | 16 (16.0) | 13 (13.1) | .19 |
| Midwest | 21 (21.2) | 26 (26.3) | 23 (23.0) | 26 (26.3) | |
| West | 11 (11.1) | 7 (7.1) | 20 (20.0) | 17 (17.2) | |
| South | 58 (58.6) | 48 (48.5) | 41 (41.0) | 43 (43.4) | |
| Services available at hospital | |||||
| Cardiac surgery | 50 (50.5) | 57 (57.6) | 54 (54.0) | 59 (59.6) | .20 |
| Percutaneous coronary intervention | 67 (67.7) | 78 (78.8) | 86 (86.0) | 86 (86.9) | .001 |
| Cardiac catheterization | 81 (81.8) | 89 (89.9) | 94 (94.0) | 94 (94.9) | .004 |
Abbreviation: NA, not applicable.
a
P Value was determined with χ2 test comparing quartile 4 vs quartile 1.