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Table 1 Classification and staging of KDIGO criteria

From: Long-term predictive value of acute kidney injury classification in diffuse proliferative lupus nephritis with acute kidney injury

Stage

KDIGO serum creatinine criteria

1

1.5 to 1.9 times baseline or ≥ 0.3 mg/dl (≥26.5 μmol/l) increase

2

2.0 to 2.9 times baseline

3

3.0 times baseline or increase in serum creatinine to ≥4.0 mg/dl (≥353.6 μmol/l) or initiation of renal replacement therapy or in patients < 18 years a decrease in eGFR to < 35 ml/minute per 1.73 m2

  1. Scr Serum creatinine, eGFR estimated glomerular filtration rate