Factors associated with AKI: Univariate analysis
| Variable | Group 1 (No AKI) | Group 2 (AKI) | P |
|---|---|---|---|
| Age (yr) | 63.8 (11.4) | 69.1 (10.7) | <0001 |
| Female gender | 170 (21.0%) | 113 (20.7%) | 0.9200 |
| BMI | 29.2 | 29.7 | 0.2900 |
| White race | 696 (92.6%) | 480 (87.9%) | 0.2200 |
| Elective/urgent surgery | 753 (92.6%) | 484 (88.6%) | 0.0100 |
| Risk category (ASA 4/5) | 208 (25.6%) | 215 (39.4%) | <0.0001 |
| Diabetes | 234 (28.8%) | 224 (41.0%) | <0.0001 |
| On-pump surgery | 516 (63.6%) | 422 (77.6%) | <0.0001 |
| Surgery type (CABG) | 742 (91.3%) | 441 (80.7%) | <0.0001 |
| Hypertension | 622 (76.5%) | 470 (86.0%) | 0.0005 |
| CHF | 122 (15.1%) | 146 (26.7%) | <0.0001 |
| COPD | 128 (15.7%) | 115 (21.1%) | 0.0100 |
| Liver disease | 33 (4.1%) | 19 (3.5%) | 0.5800 |
| GI comorbidity | 135 (16.6%) | 106 (19.4%) | 0.1800 |
| Neurologic diseases | 146 (17.9%) | 120 (22.0%) | 0.0700 |
| Arthritis | 209 (25.7%) | 154 (28.2%) | 0.2100 |
| Use of NSAID | 93 (11.4%) | 51 (9.3%) | 0.3100 |
| ACEI/ARB | 386 (48.5%) | 321 (58.8%) | 0.0001 |
| Intraoperative hypotension | 319 (39.2%) | 288 (52.8%) | <0.0001 |
| Postoperative hypotension | 86 (10.6%) | 92 (16.8%) | 0.00082 |