Table 9.2

Stages of CKD

StageDescriptionGFR (mL/min/1.73 m2)
1Kidney damage* with normal or increased GFR≥90
2Kidney damage* with mildly decreased GFR60–89
3Moderately decreased GFR30–59
4Severely decreased GFR15–29
5Kidney failure<15 or dialysis
  • * Kidney damage is defined as abnormalities on pathological, urine, blood, or imaging tests. Adapted from Levey et al. (37).