NKF-KDOQI Chronic Kidney Disease (CKD) Classification

State GFR Description Treatment
1 90+ Normal kidney function Observation, control of blood pressure
2 89-60 Mildly reduced kidney function Observation, control of blood pressure and risk factors
3A
3B
59-45
44-30
Moderately reduced kidney function Observation, control of blood pressure and risk factors
4 29-15 Severely reduced kidney function Planning for endstage renal failure
5 <15
(dialysis)
Kidney failure Treatment choices

CKD is defined as kidney damage or glomerular filtration rate (GFR) < 60 ml/min/1.73 m2 for 3 months or more, irrespective of cause.

References

Levey AS, Eckardt KU, Tsukamoto Y, Levin A, Coresh J, Rossert J, De Zeeuw D, Hostetter TH, Lameire N, Eknoyan G. Definition and classification of chronic kidney disease: a position statement from Kidney Disease: Improving Global Outcomes (KDIGO). Kidney Int. 2005 Jun;67(6):2089-100.

Abbreviated MDRD Equation

GFR = 186 × (SCr / 88.4) – 1.154 × Age – 0.203 × (0.742 if Female) and × (1.212 if Black) or × (1.233 if Chinese)

References

Ma YC, Zuo L, Chen JH, Luo Q, Yu XQ, Li Y, Xu JS, Huang SM, Wang LN, Huang W, Wang M, Xu GB, Wang HY. J Am Soc Nephrol. 2006. Modified glomerular filtration rate estimating equation for Chinese patients with chronic kidney disease.