Fig. 4

The correlation graphs with Z-score between observed eGFR and estimated eGFR. The plots show the observed eGFR at 1 year post-donation (Y-axis) versus the estimated eGFR (X-axis) using the optimized DKF model (A) and the conventional DKF model (B). The color scale represents the Z-score. The green dashed line indicates the 75th percentile, while the orange dashed line indicates the 25th percentile.