Comparison of KDIGO stage using CKD-EPISCr and CKD-EPIcys equations.
| Stage According to the KDIGO Guideline | CKD-EPISCr, N = 436 | CKD-EPIcys, N = 436 | P |
|---|---|---|---|
| 1 | 312 (71.5) | 249 (57.1) | < 0.01 |
| 2 | 102 (23.4) | 134 (30.7) | 0.02 |
| 3A | 16 (3.7) | 22 (5) | 0.32 |
| 3B | 5 (1.1) | 19 (4.4) | < 0.01 |
| 4 | 1 (0.02) | 11 (2.5) | < 0.01 |
| 5 | 0 (0) | 1 (0.02) | > 0.99 |
Data are presented as n (%). Values in bold are statistically significant. CKD-EPI: chronic kidney disease epidemiology collaboration; cys: cystatin C; KDIGO: Kidney Disease: Improving Global Outcomes; SCr: serum creatinine.