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. 2014 Dec 9;2014(12):CD006254. doi: 10.1002/14651858.CD006254.pub2

1. Current chronic kidney disease nomenclature used by KDIGO nomenclature.

Prognosis of CKD by GFR and albuminuria categories: KDIGO 2012 Persistent albuminuria categories
Description and range
A1
Normal to
mildly
increased
A2
Moderately
increased
A3
Severely
increased
< 30 mg/g
< 3 mg/mmol
30 to 300 mg/g
3 to 30 mg/mmol
> 300 mg/g
> 30 mg/mmol
GFR categories
(mL/min per 1.73 m²)
Description and range
G1
G2
Normal or high
Mildly decreased
> 90
60 to 89
Low Moderate High
G3a Mild to moderately decreased 45 to 59 Moderate High Very high
G3b Moderate to severely decreased 30 to 44 High Very high
G4 Severely decreased 15 to 29 Very high
G5 Kidney failure < 15

Description of the Kidney Disease: Improving Global Outcomes (KDIGO) nomenclature for chronic kidney disease used in this review (see the full KDIGO CKD 2013 for additional information).

GFR ‐ glomerular filtration rate