Table 2.
Kidney Disease Improving Global Outcomes classification
| Kidney Disease Improving Global Outcomes Stage | Serum Creatinine |
| 1 | 1.5–1.9 times baseline or 0.3-mg/dl increase |
| 2 | 2.0–2.9 times baseline |
| 3 | 3.0 times baseline or increase in serum creatinine to 4.0 mg/dl or initiation of RRT or decrease in eGFR to 35 ml/min per 1.73 m2 (in patients over 18 yr) |