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. 2020 May 21;2020(5):CD013631. doi: 10.1002/14651858.CD013631
  Persistent albuminuria categories
Description and range
A1 A2 A3
Normal to mildly increased Moderately increased Severely increased
ACRa < 30 mg/g ACR30 to 300 mg/g ACR > 300 mg/g
eGFRb categories (mL/min/1.73 m2)
Description and range
G1 Normal or highc ≥ 90 1 if CKD 1 2
G2 Mildly decreasedc 60 to 89 1 if CKD 1 2
G3a Mildly to moderately decreased 45 to 59 1 2 3
G3b Moderately to severely decreased 30 to 44 2 3 3
G4 Severely decreased 15 to 29 3 3 4+
G5 Kidney failure < 15 4+ 4+ 4+