Table. Adjusted Comparison of Hospital Characteristics Between Candidate vs Current TAVR Hospitals and Ineligible vs Current TAVR Hospitals.
| Hospital characteristic | Hospitals, No. | Current TAVR hospitals, No. (%) | Candidate TAVR hospitals | Ineligible TAVR hospitals | ||||
|---|---|---|---|---|---|---|---|---|
| No. (%) | aOR (95% CI) | P value | No. (%) | aOR (95% CI) | P value | |||
| Overall | 1189 | 495 (41.6) | 448 (37.7) | NA | NA | 246 (20.7) | NA | NA |
| Location | ||||||||
| Urban | 1123 | 486 (43.3) | 426 (37.9) | 1 [Reference] | .61 | 211 (18.8) | 1 [Reference] | .01 |
| Rural | 66 | 9 (13.6) | 22 (33.3) | 1.27 (0.51-3.13) | 35 (53.0) | 3.46 (1.33-8.98) | ||
| Bed size | ||||||||
| ≥500 | 263 | 217 (82.5) | 36 (13.7) | 1 [Reference] | NA | 10 (3.8) | 1 [Reference] | NA |
| 300-499 | 378 | 186 (49.2) | 145 (38.4) | 3.43 (2.18-5.41) | <.001 | 47 (12.4) | 3.71 (1.69-8.13) | <.001 |
| <300 | 548 | 92 (16.8) | 267 (48.7) | 10.4 (6.28-17.2) | <.001 | 189 (34.5) | 26.8 (12.0-59.9) | <.001 |
| Teaching status | ||||||||
| Teaching | 786 | 415 (52.8) | 253 (32.2) | 1 [Reference] | .04 | 118 (15.0) | 1 [Reference] | .05 |
| Nonteaching | 403 | 80 (19.9) | 195 (48.4) | 1.48 (1.02-2.14) | 128 (31.8) | 1.57 (0.99-2.48) | ||
| Onsite cardiac ICU | ||||||||
| Yes | 703 | 394 (56.1) | 227 (32.3) | 1 [Reference] | <.001 | 82 (11.7) | 1 [Reference] | |
| No | 486 | 101 (20.8) | 221 (45.5) | 1.85 (1.32-2.61) | 164 (33.7) | 3.48 (2.26-5.36) | <.001 | |
| Safety net statusa | ||||||||
| Non–safety net | 856 | 360 (42.1) | 354 (41.4) | 1 [Reference] | .001 | 142 (16.6) | 1 [Reference] | <.001 |
| Safety net | 333 | 135 (40.5) | 94 (28.2) | 1.96 (1.32-2.92) | 104 (31.2) | 8.59 (5.23-14.1) | ||
| Patient case mix complexityb | ||||||||
| High complexity | 600 | 372 (63.2) | 289 (48.2) | 1 [Reference] | <.001 | 188 (31.3) | 1 [Reference] | <.001 |
| Low complexity | 589 | 123 (20.5) | 159 (27.0) | 4.46 (3.16-6.30) | 58 (9.9) | 9.00 (5.65-14.3) | ||
| Geographic region | ||||||||
| East | 351 | 201 (57.3) | 109 (31.1) | 1 [Reference] | NA | 41 (11.7) | 1 [Reference] | NA |
| Midwest | 311 | 114 (36.7) | 130 (41.8) | 2.08 (1.36-3.19) | .001 | 67 (21.5) | 2.38 (1.34-4.24) | .003 |
| South | 272 | 74 (27.2) | 113 (41.5) | 3.24 (2.03-5.16) | <.001 | 85 (31.3) | 5.17 (2.85-9.38) | <.001 |
| West | 255 | 106 (41.6) | 96 (37.7) | 1.55 (0.97-2.46) | .07 | 53 (20.8) | 1.71 (0.91-3.20) | .10 |
Abbreviations: aOR, adjusted odds ratio; ICU, intensive care unit; NA, not applicable; TAVR, transcatheter aortic valve replacement.
a
Defined as Medicare hospitals in the top quartile of the disproportionate share hospital index.
b
Defined as Medicare hospitals in the top quartile of the case mix index.