Prevalence of patients in each stage upon admission using each equation according to the most recent modification of the K/DOQI guidelines for CKD classification
| No. of patients using CG | No. of patients using MDRD4 | |
|---|---|---|
| Stages 1–2 | 0 | 56 |
| Stage 3 | ||
| 3A (GFR 45–59) | 43 | 70 |
| 3B (GFR 30–44) | 109 | 78 |
| Stage 4 (GFR 15–29) | 85 | 41 |
| Stage 5 (GFR <15) | 12 | 4 |
CKD, chronic kidney disease; CG, Cockcroft–Gault; GFR, glomerular filtration rate; MDRD4, modified diet in renal disease.