Table 1. Neonatal acute kidney injury modified from the kidney disease: Improving global outcomes serum creatinine criteria.

Stage	Serum creatinine (SCr)	Urine output
0	No change in SCr or increase < 0.3 mg/dL	≥ 0.5 mL/kg/h
1	SCr increase ≥ 0.3 mg/dL within 48 h or SCr increase ≥ 1.5–1.9 baseline SCra within 7 d	< 0.5 mL/kg/h for 6–12 h
2	SCr increase ≥ 2 to 2.9 baseline SCr a	< 0.5 mL/kg/h for ≥12 h
3	SCr increase ≥ 3 baseline SCr a or SCr ≥ 2.5 mg/dL or receipt of dialysis	< 0.3 mL/kg/h for ≥ 24 h or anuria for ≥ 12 h

^aBaseline SCr was defined as the lowest previous SCr level and was examined only after 24 hours of life in our study.