Table 9.1

Stages of CKD

StageDescriptionGFR (mL/min/1.73 m2)
1Kidney damage* with normal or increased eGFR≥90
2Kidney damage* with mildly decreased eGFR60–89
3Moderately decreased eGFR30–59
4Severely decreased eGFR15–29
5Kidney failure<15 or dialysis
  • * Kidney damage is defined as abnormalities on pathological, urine, blood, or imaging tests. Adapted from Levey et al. (3).