Table 5.
Reclassification of CKD stage when moving from the MDRD to the CKD-EPI equation using the second eGFR/ACR result after a positive first screening, n = 476a
| CKD stage based on MDRD equation | n | CKD stage based on CKD-EPI equation | ||||
|---|---|---|---|---|---|---|
| Normal urinary ACR, n= 294, n | Stage 1, n= 4, n | Stage 2, n = 91, n | Stage 3A, n= 72, n | Stage 3B, n= 15, n | ||
| Normal urinary ACR | 286 | 278b | 0 | 0 | 8 | 0 |
| Stage 1 | 14 | 0 | 4b | 10 | 0 | 0 |
| Stage 2 | 85 | 2 | 0 | 79b | 4 | 0 |
| Stage 3A | 77 | 14 | 0 | 2 | 60b | 1 |
| Stage 3B | 14 | 0 | 0 | 0 | 0 | 14b |
a
Nine patients excluded as sex missing.
b
Numbers of patients for whom the CKD stage did not change. ACR = albumin:creatinine ratio. CKD = chronic kidney disease. CKD-EPI = Chronic Kidney Disease Epidemiology Collaboration. eGFR = estimated glomerular filtration rate. MDRD = Modification of Diet in Renal Disease.