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Table 1 Glomerular filtration rate (GFR) categories in chronic kidney disease (CKD). Patients with CKD G1 and G2 have normal eGFR value and have other evidence of kidney damages (e.g. proteinuria)

From: The effect of model selection on cost-effectiveness research: a comparison of kidney function-based microsimulation and disease grade-based microsimulation in chronic kidney disease modeling

GFR category

GFR (mL/min/1.73 m^2)

Terms

G1

≥90

Normal or high, with evidence of kidney damage

G2

60–89

Mildly decreased, with evidence of kidney damage

G3a

45–59

Mildly to moderately decreased

G3b

30–44

Moderately to severely decreased

G4

15–29

Severely decreased

G5

< 15

Kidney failure

  1. CKD Chronic kidney disease, G Grade, GFR Glomerular filtration rate, eGFR Estimated glomerular filtration rate