Table 1 Stages of chronic kidney disease (CKD)
CKD stageDescriptioneGFR (ml/min/1.73 m2)
1Normal or increased eGFR*⩾90
2Mildly decreased eGFR*60–89
3Moderately decreased eGFR30–59
4Severely decreased eGFR15–29
5Kidney failure<15 (or dialysis)

  • eGFR, estimated glomerular filtration rate.

  • *Normal unless other evidence of kidney damage exists.