Table 3. In-Hospital Renal Outcomes and Postdischarge Outcomesa.
| Variable | Procedures, No. (%) | Proteinuria, % | ||||
|---|---|---|---|---|---|---|
| Negative | Trace | 1+ | 2+ | 3+ | ||
| Overall, No. | 153 767 | 86 571 | 31 676 | 24 603 | 8457 | 2460 |
| In-hospital renal outcomes | ||||||
| AKI | 17 209 (11.2) | 7460 (8.6) | 3792 (12.0) | 3525 (14.4) | 1786 (21.0) | 646 (27.2) |
| Postoperative AKI stage | ||||||
| 1, mild | 13 250 (77.0) | 5318 (43.7) | 2585 (21.3) | 2461 (20.2) | 1303 (10.7) | 499 (4.1) |
| 2, moderate | 2620 (15.2) | 967 (47.5) | 967 (47.5) | 459 (22.6) | 379 (18.6) | 177 (8.7) |
| 3, severe | 1339 (7.8) | 496 (46.3) | 247 (23.1) | 228 (21.3) | 81 (7.6) | 19 (1.8) |
| Renal recoveryb | ||||||
| Complete | 15 477 (92.7) | 6345 (43.2) | 3221 (21.9) | 3016 (20.5) | 1538 (10.5) | 573 (3.9) |
| Partial | 1139 (6.8) | 375 (32.9) | 161 (14.1) | 309 (27.1) | 228 (20.0) | 67 (5.9) |
| None | 85 (0.5) | 27 (31.6) | 17 (19.5) | 20 (24.1) | 14 (16.4) | 7 (8.4) |
| Postdischarge outcomes | ||||||
| Any 30-d unplanned readmission | 16 665 (10.8) | 8067 (9.3) | 3587 (11.3) | 3258 (13.3) | 1343 (15.8) | 410 (17.3) |
| Any 30-d ED admission | 22 830 (14.8) | 12 213 (14.1) | 4739 (14.9) | 4023 (16.4) | 1415 (16.6) | 440 (18.5) |
Abbreviations: AKI, acute kidney injury; ED, emergency department.
a
All differences were significant at P < .001, determined with a χ2 test for categorical variables and a t test for continuous variables.
b
Some data missing.