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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