Table 1.

KDIGO Criteria

Stage	Serum Creatinine Increase
1	1.5~1.9 times baseline or ≥ 0.3 mg/dL (26.5umol/L) increase
2	2.0~2.9 times increase
3	≥3.0 times baseline or increase in serum creatinine to ≥4.0 mg/dL (353.6umol/L) or initiation of renal replacement therapy