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Table 1 Different stages of chronic kidney disease classified by glomerular filtration rates

From: Potential diagnostic biomarkers for chronic kidney disease of unknown etiology (CKDu) in Sri Lanka: a pilot study

Stage of chronic kidney disease Glomerular filtration rate (mL/min/1.73 m3)
Stage 1 ≥90
Stage 2 60–89
Stage 3 30–59
Stage 4 15–29
Stage 5 <15 (or dialysis)