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Table 4 Acute kidney injury definition and staging based on serum creatinine

From: Predictors of Acute Renal Injury Study (PARIS) among HIV-positive individuals: design and methods

Definition • Increase =0.3 mg/dl within 48 h OR
• =1.5× baseline which is known OR
• Presumed to have occurred within the prior 7 days
Stage
1 • 1.5–1.9× baseline OR =0.3 mg/dl increase
2 • 2–2.9× baseline
3 • Increase to =4 mg/dl OR
• Initiation of renal replacement therapy