Table 3

Definition and stages of chronic kidney disease based on kidney disease outcomes quality initiatives (K/DOQI) guidelines51

StageDescriptionGFR (ml/min/1.73 m2)
IKidney damage with normal or increased GFR≥90
IIKidney damage with mildly decreased GFR60–89
IIIModerately decreased GFR30–59
IVSeverely decreased GFR15–29
VKidney failure<15 (or dialysis)
  • Chronic kidney disease is defined as either kidney damage or glomerular filtration rate (GFR) <60 ml/min/1.73 m2 for >3 months. Kidney damage is defined as pathological abnormalities or markers of damage including abnormalities in blood or urine tests or imaging studies.