Table 1.
Classification of chronic kidney disease by estimated GFR criteria
| GFR category | GFR (mL/min/1.73 m2) | Terms |
|---|---|---|
| G1 | ≥90 | Normal or high |
| G2 | 60–89 | Mildly decreased |
| G3a | 45–59 | Mildly to moderately decreased |
| G3b | 30–44 | Moderately to severely decreased |
| G4 | 15–29 | Severely decreased |
| G5 | <15 | Kidney failure |
Kidney Disease: Improving Global Outcomes (KDIGO) CKD Work Group.
Note: Data from KDIGO 2012 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. Kidney Int Suppl. 2013;3:1–150.2
Abbreviation: GFR, glomerular filtration rate.