ORs for stage 2/3 acute kidney injury and persistent stage 2/3 acute kidney injury using EDTA, heparin and urine NGAL values as predictors (odds are associated with an approximate 2.73-fold increase in NGAL value)
| Outcome | NGAL measure | p Value | OR (95% CI) |
| Stage 2/3 acute kidney injury | EDTA | <0.001 | 2.8 (1.8 to 4.4) |
| Heparin | <0.001 | 3.2 (2.0 to 4.9) | |
| Urine | <0.001 | 2.2 (1.7 to 2.9) | |
| Persistent stage 2/3 acute kidney injury | EDTA | <0.001 | 3.8 (2.3 to 6.3) |
| Heparin | <0.001 | 3.9 (2.3 to 6.3) | |
| Urine | <0.001 | 2.2 (1.6 to 3.0) |
EDTA, ethylenediaminetetraacetic acid; NGAL, neutrophil gelatinase-associated lipocalin.