Table 2. Frequency of glomerular filtration rate categories by five estimating equations.
| GFR category (mL/min/1.73 m2) | Number (%) of subjects with each GFR category according to the estimating equations | |||||
|---|---|---|---|---|---|---|
| MDRD | CKD-EPICr | CKD-EPICysC | CKD-EPICr-CysC | LMrevised | ||
| G1 | ≥ 90 | 119 (8.0) | 416 (28.0) | 1,212 (81.8) | 982 (66.2) | 109 (7.4) |
| G2 | 60–89 | 1,224 (82.5) | 983 (66.3) | 235 (15.8) | 461 (31.1) | 1,254 (84.6) |
| G3a | 45–59 | 112 (7.5) | 58 (3.9) | 24 (1.6) | 26 (1.8) | 92 (6.2) |
| G3b | 30–44 | 20 (1.3) | 18 (1.2) | 10 (0.7) | 11 (0.7) | 14 (0.9) |
| G4 | 15–29 | 6 (0.4) | 6 (0.4) | 1 (0.0) | 2 (0.1) | 12 (0.8) |
| G5 | < 15 | 1 (0.1) | 1 (0.1) | 0 (0.0) | 0 (0.0) | 1 (0.1) |
| Total | 1,482 (100.0) | 1,482 (100.0) | 1,482 (100.0) | 1,482 (100.0) | 1,482 (100.0) | |
Abbreviations: GFR, glomerular filtration rate; MDRD, Modification of Diet in Renal Disease; LM, Lund-Malmö; CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; Cr, creatinine; CysC, cystatin C.