Table 3.
Characteristics of hospitals stratified by their use of POA indicator
| All TKA Hospitals (N = 2617) |
Hospitals with Valid POA Indicator for ≤ 25% TKA Cases with Complications (N = 709) |
Hospitals with Valid POA Indicator for 26%-75% of TKA Cases with Complications (N = 1254) |
Hospitals with Valid POA Indicator for > 75% TKA Cases with Complications (N = 654) |
P-value** | |
|---|---|---|---|---|---|
| TKA Volume, mean (SD) |
175.6 (200.2) | 122.9 (136.5) | 252.5 (215.8) | 80.1 (163.7) | <0.0001 |
| Complication Volume, mean (SD) |
9.0 (10.3) | 5.6 (6.5) | 14.0 (11.4) | 3.1 (5.9) | <0.0001 |
| Beds, mean (SD) | 137.7 (114.3) | 109.6 (87.9) | 174.2 (129.9) | 91.0 (70.3) | <0.0001 |
| Teaching Status, number (%) |
|||||
| Major | 252 (9.6) | 52 (7.3) | 174 (13.9) | 26 (4.0) | <0.0001 |
| Minor | 440 (16.8) | 84 (11.9) | 285 (22.7) | 71 (10.9) | |
| Non-Teaching | 1925 (73.6) | 573 (80.8) | 795 (63.4) | 557 (85.2) | |
| Geographic Region, number (%) |
|||||
| Midwest | 639 (25.1) | 161 (23.4) | 337 (27.1) | 141 (22.8) | 0.0002 |
| Northeast | 427 (16.7) | 105 (15.3) | 203 (16.3) | 119 (19.2) | |
| South | 997 (39.1) | 312 (45.4) | 468 (37.6) | 217 (35.1) | |
| West | 488 (19.1) | 109 (15.9) | 237 (19.0) | 142 (22.9) | |
| Governance, number (%) |
|||||
| For profit | 500 (19.1) | 153 (21.6) | 191 (15.2) | 156 (23.9) | <0.0001 |
| Government, non-federal |
378 (14.4) | 122 (17.2) | 148 (11.8) | 108 (16.5) | |
| Not for profit | 1739 (66.5) | 434 (61.2) | 915 (73.0) | 390 (59.6) | |
| DSH Status (%) | |||||
| High DSH | 1097 (41.9) | 310 (43.7) | 518 (41.3) | 269 (41.1) | 0.1971 |
| Low DSH | 970 (37.1) | 237 (33.4) | 485 (38.7) | 248 (37.9) | |
| Zero DSH | 550 (21.0) | 162 (22.9) | 251 (20.0) | 137 (21.0) | |