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Prevalence of CKD according to K/DOQI classification by different equations (n =214)
| Stage | Description | eGFR (ml/min/1.73 m 2) | MDRD N (%) | Cockcroft-Gault N (%) |
|---|---|---|---|---|
| 1 | Normal or high GFR | ≥90 | 118 (55.1) | 84 (39.3) |
| 2 | Mild ↓GFR | 60-89.9 | 57 (26.6) | 79 (36.9) |
| 3 | Moderate ↓GFR | 30-59.9 | 37 (17.3) | 49 (22.9) |
| 3A | Mild to moderate ↓GFR | 45-59.9 | 30 (14.0) | 32 (15.0) |
| 3B | Moderate to severe ↓GFR | 30-44.9 | 7 (3.3) | 17 (7.9) |
| 4 | Severe ↓GFR | 15-29.9 | 2 (0.9) | 2 (0.9) |
