Table 1.
Reclassification across eGFR categories with the 2021 CKD-EPI equation from eGFR categories with the 2009 CKD-EPI equation
| eGFR category | |||||||
|---|---|---|---|---|---|---|---|
| with the 2009 | |||||||
| equation, mL/min/ | eGFR category with the 2021 equation, mL/min/1.73 m2 | ||||||
| 1.73 m2 | ≥90 | 60–89 | 45–59 | 30–44 | 15–29 | <15 | Total |
| ≥90 | 1 036 982 (100%) | 1 036 982 (64.8%) | |||||
| 60–89 | 129 363 (26.8%) | 353 218 (73.2%) | 482 581 (30.1%) | ||||
| 45–59 | 20 912 (39.0%) | 32 712 (61.0%) | 53 624 (3.3%) | ||||
| 30–44 | 6716 (33.1%) | 13 559 (66.9%) | 20 275 (1.3%) | ||||
| 15–29 | 1709 (27.0%) | 4623 (73.0%) | 6332 (0.4%) | ||||
| <15 | 244 (16.9%) | 1199 (83.1%) | 1443 (0.1%) | ||||
| Total | 1 166 345 (72.8%) | 374 130 (23.4%) | 39 428 (2.5%) | 15 268 (1.0%) | 4867 (0.3%) | 1199 (0.1%) | 1 601 237 |
Data in blue cells are the number of participants who are reclassified to less severe CKD G categories, and percentages represent the proportion of participants in the eGFR category with the 2009 equation that are reclassified to a higher eGFR category with the 2021 equation. The percentages in parentheses in the ‘Total’ row and column denote the proportion of participants in each eGFR category. Total number of participants reclassified = 158 944 (9.9% of total population). Total number of participants with CKD G3a–G5 reclassified = 29 581 (36.2% of CKD G3a–G5 population).