Table 2.
Comparison of associations (hazard ratios) of eGFR from novel filtration markers compared with eGFR from creatinine, cystatin, and creatinine–cystatin C across different eGFR ranges
| Populations | Creatinine | Cystatin C | BTP | B2M | Cr-Cys | Average 4 |
|---|---|---|---|---|---|---|
| ESRD GP | ||||||
| eGFR<60 | 3.36 (1.96 to 5.76) | 3.17 (2.76 to 3.64) | 5.27a,b,c (4.53 to 6.13) | 5.26a,b,c (4.14 to 6.69) | 3.25 (1.87 to 5.65) | 3.98a,c (1.86 to 8.53) |
| eGFR 60–90 | 2.82 (1.72 to 4.62) | 2.22 (1.65 to 3.00) | 1.45a,b,c (0. 96 to 2.20) | 1.68 (1.06 to 2.66) | 2.88 (1.71 to 4.87) | 2.99b,c (2.21 to 4.04) |
| ESRD CKD | ||||||
| eGFR<60 | 3.08 (2.36 to 4.03) | 3.05 (2.33 to 3.99) | 4.53a,b,c (3.29 to 6.23) | 3.29a (2.34 to 4.61) | 3.36a,b (2.56 to 4.43) | 4.11a,b,c (2.87 to 5.87) |
| eGFR 60–90 | 1.32 (0.89 to 1.94) | 1.34 (0.76 to 2.38) | 1.11c (0.80 to 1.53) | 5.14a,b,c (1.30 to 20.35) | 1.44 (0.69 to 3.00) | 3.14a,b,c (1.30 to 7.55) |
| ACM GP | ||||||
| eGFR<60 | 1.69 (1.38 to 2.06) | 1.52 (1.36 to 1.69) | 1.98b,c (1.63 to 2.41) | 1.83b,c (1.53 to 2.19) | 1.60 (1.39 to 1.83) | 1.77b,c (1.52 to 2.05) |
| eGFR 60–90 | 1.13 (1.06 to 1.19) | 1.20a (1.13 to 1.27) | 0.93b,c (0.72 to 1.22) | 1.28a,b,c (1.21 to 1.37) | 1.21a (1.13 to 1.30) | 1.26a,b,c (1.19 to 1.36) |
| ACM CKD | ||||||
| eGFR<60 | 1.31 (1.12 to 1.53) | 1.67a (1.54 to 1.81) | 1.69a,c (1.42 to 2.01) | 1.79a,b,c (1.55 to 2.06) | 1.48a,b (1.27 to 1.72) | 1.67a,c (1.43 to 1.94) |
| eGFR 60–90 | 1.03 (0.75 to 1.41) | 1.21 (0.94 to 1.56) | 1.05 (0.84 to 1.31) | 1.31 (0.49 to 3.50) | 1.48 (0.82 to 2.66) | 1.04 (0.28 to 3.86) |
Hazard ratios and 95% confidence intervals are given as per 15 ml/min per 1.73 m2 eGFR. BTP, β-trace protein; B2M, β-microglobulin; Cr-Cys, creatinine–cystatin C; Average 4, average of all four markers for GFR; GP, general population; ACM, all-cause mortality.
Indicates significantly different from eGFR from creatinine.
Indicates significantly different from eGFR from cystatin C.
Indicates significantly different from eGFR from creatinine–cystatin C.