Confidence limits for CKD stage distribution when ethnicity is taken into account
| CKD stage | eGFR | MDRD % | CKD-EPI % |
| 3–5 | <15–59 | 15.8 (15.5–16.00) | 14.6 (14.4–14.8) |
| 5 | <15 | 0.193 (0.167–0.220) | 0.225 (0.197–0.255) |
| 4 | 15–29 | 1.06 (1.00–1.13) | 1.23 (1.16–1.3) |
| 3 | 30–59 | 14.5 (14.3–14.7) | 13.1 (12.9–13.3) |
| 2 | 60–89 | 53.3 (53.0–53.6) | 43.8 (43.5–44.1) |
| 1/0 | ≥90 | 41.6 (41.3–41.9) | 36.2 (35.9–36.5) |
Values indicate the median percentages of those tested, who are diagnosed with each CKD stage when ethnicity is taken into account using either the MDRD or the CKD-EPI formula. Values are show with 2.5% and 97.5% confidence limits. Medians and confidence limits are derived from a bootstrapping analysis. The first row shows the values for CKD stages 3–5 inclusive. Both CKD stages 1 and 2 require a structural or other abnormality in addition to the eGFR criteria.
CKD, chronic kidney disease; CKD-EPI, Chronic Kidney Disease-Epidemiology Collaboration; eGFR, estimated glomerular filtration rate; MDRD, Modification of Diet in Renal Disease.