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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)