Table 3.
Overall performance of eGFRCG, eGFRMC, eGFRMDRD and eGFRCKD-EPI at 1 year
| Bias(mL/min) | IQRa | Relative Bias(%) | R2 | RMSEb | Within 10%of iGFR | Within 30%of iGFR | Within 50%of iGFR | |
|---|---|---|---|---|---|---|---|---|
| Steroid free (n = 81) | ||||||||
| eGFRCG | 0.23 ± 15.2 | 16.0 | 8.52 ± 45.1% | 0.32 | 15.1 | 41.7% | 75.0% | 88.1% |
| (1) | (1) | (1) | (1) | (1) | (1) | |||
| eGFRMC | 7.80 ± 17.7 | 20.8 | 21.46 ± 49.2% | 0.33 | 19.3 | 32.1% | 61.9% | 83.3% |
| (Rank) | (3) | (3) | (1) | (1) | (2) | (1) | ||
| eGFRMDRD | 2.40 ± 15.7 | 17.2 | 11.24 ± 40.9% | 0.37 | 15.8 | 39.3% | 75.0% | 86.9% |
| (Rank) | (1) | (1) | (1) | (1) | (1) | (1) | ||
| eGFRCKD-EPI | 6.91 ± 15.9 | 18.1 | 19.99 ± 44.8% | 0.37 | 17.3 | 33.3% | 66.7% | 83.3% |
| (Rank) | (2) | (2) | (1) | (1) | (2) | (2) | ||
| Steroid maintenance (n = 16) | ||||||||
| eGFRCG | 4.79 ± 17.0 | 18.4 | 13.32 ± 32.8% | 0.05 | 17.2 | 25.0% | 81.3% | 81.3% |
| eGFRMC | 9.35 ± 17.3 | 19.2 | 20.45 ± 35.4% | 0.08 | 19.2 | 18.8% | 68.8% | 75.0% |
| eGFRMDRD | 3.71 ± 13.6 | 16.0 | 9.99 ± 26.9% | 0.11 | 13.8 | 43.8% | 81.3% | 87.5% |
| eGFRCKD-EPI | 9.47 ± 14.8 | 15.4 | 20.52 ± 30.5% | 0.12 | 17.2 | 18.8% | 68.8% | 87.5% |
Rank of performance based on paired tests: 1 = Best. Ties are assigned the same rank. CG, Cockcroft–Gault; MC, Mayo Clinic. aIQR, interquartile range of differences, bRMSE, root mean squared error of differences. Ranking was not performed for the 16 subjects on no steroids due to the small n.