Table 4. Association of different outcomes among AKI patients across different AKI stage.
| Continuous outcome | |||||||
|---|---|---|---|---|---|---|---|
| Outcomes | AKI stage 1 | AKI stage 2 | AKI stage 3 | p value | |||
| N | Median (IQR) | N | Median (IQR) | N | Median (IQR) | ||
| Hospital LOS (days) | 168 | 8.24 (4.90–13.6) | 40 | 8.78 (4.64–16.05) | 62 | 11.93 (7.40–24.33) | 0.009 |
| PIM 2 Probability of Death (%) | 172 | 1.15 (0.89–3.36) | 40 | 1.22 (0.82–5.24) | 62 | 1.28 (0.85–4.42) | 0.606 |
| PIM 3 Probability of Death (%) | 172 | 0.96 (0.73–2.34) | 40 | 1.04 (0.38–2.97) | 62 | 1.12 (0.7–4.7) | 0.484 |
| Categorical outcome | |||||||
| Outcomes | N (%) | N (%) | N (%) | p value | |||
| Airway / Respiratory support | 86 (50.0%) | 22 (55.0%) | 44 (71.0%) | 0.019 | |||
| Cardio-respiratory support | 5 (2.9%) | 0 (0%) | 3 (4.8%) | 0.375 | |||
| Vascular access | 102 (59.3%) | 28 (70.0%) | 54 (87.1%) | <0.001 | |||
AKI: Acute Kidney Injury; LOS: Length of stay; PIM: Pediatric index of mortality; IQR: Interquartile range
The mortality status and kidney support has been used in the classification of AKI stage, therefore these outcomes have not been considered for analysis.