Table 2 Regression coefficients of the final models sorted in the order of highest statistical significance
Model | Predictive performance | Feature | Estimates | t values | p values |
|---|---|---|---|---|---|
\({Model}_{final,pre}\) | \({R}^{2}\)=0.444 MSE = 0.025 | History of CKD | 0.67 | 13.051 | < 0.001 |
Radical nephrectomy | 0.188 | 8.684 | < 0.001 | ||
Male | 0.06 | 5.243 | < 0.001 | ||
Size of mass removed (cm) | 0.01 | 4.827 | < 0.001 | ||
Age (years) | 0.0021 | 4.808 | < 0.001 | ||
\({Model}_{final,0d}\) | \({R}^{2}\)=0.530 MSE = 0.021 | History of CKD | 0.722 | 14.938 | < 0.001 |
\(\Delta {SCr}_{0d}\)(mg/dL) | 0.540 | 13.716 | < 0.001 | ||
Radical nephrectomy | 0.2 | 9.754 | < 0.001 | ||
Age (years) | 0.0033 | 7.771 | < 0.001 | ||
Size of mass removed (cm) | 0.0055 | 2.769 | 0.006 | ||
\({Model}_{final,1d}\) | \({R}^{2}\)=0.505 MSE = 0.022 | \(\Delta {SCr}_{1d}\)(mg/dL) | 0.391 | 15.443 | < 0.001 |
History of CKD | 0.632 | 13.193 | < 0.001 | ||
Radical nephrectomy | 0.168 | 8.343 | < 0.001 | ||
Size of mass removed (cm) | 0.0029 | 1.456 | 0.146 | ||
\({Model}_{final,2d}\) | \({R}^{2}\)=0.550 MSE = 0.02 | \(\Delta {SCr}_{2d}\)(mg/dL) | 0.414 | 20.76 | < 0.001 |
Radical nephrectomy | 0.141 | 11.832 | < 0.001 | ||
History of CKD | 0.471 | 10.157 | < 0.001 | ||
Age (years) | 0.0022 | 5.537 | < 0.001 | ||
\({Model}_{final,3d}\) | \({R}^{2}\)=0.575 MSE = 0.019 | \(\Delta {SCr}_{3d}\)(mg/dL) | 0.482 | 22.056 | < 0.001 |
History of CKD | 0.44 | 9.716 | < 0.001 | ||
Radical nephrectomy | 0.120 | 6.421 | < 0.001 | ||
Age (years) | 0.0022 | 5.91 | < 0.001 | ||
Size of mass removed (cm) | 0.0007 | 0.361 | 0.718 | ||
\({Model}_{final,4d}\) | \({R}^{2}\)=0.608 MSE = 0.018 | \(\Delta {SCr}_{4d}\)(mg/dL) | 0.449 | 17.84 | < 0.001 |
Radical nephrectomy | 0.117 | 10.031 | < 0.001 | ||
History of CKD | 0.441 | 9.735 | < 0.001 | ||
\(\Delta {BUN}_{4d}\)(mg/dL) | 0.0083 | 7.062 | < 0.001 | ||
Preoperative BUN (mg/dL) | 0.0070 | 4.913 | < 0.001 | ||
Age (years) | 0.0015 | 3.732 | < 0.001 | ||
\({Model}_{final,5d}\) | \({R}^{2}\)=0.565 MSE = 0.019 | \(\Delta {SCr}_{5d}\)(mg/dL) | 0.472 | 18.7 | < 0.001 |
History of CKD | 0.573 | 12.658 | < 0.001 | ||
Radical nephrectomy | 0.122 | 9.918 | < 0.001 | ||
\(\Delta {BUN}_{5d}\)(mg/dL) | 0.0059 | 5.954 | < 0.001 | ||
\({Model}_{final,1m}\) | \({R}^{2}\)=0.643 MSE = 0.016 | \(\Delta {SCr}_{1m}\)(mg/dL) | 0.638 | 26.397 | < 0.001 |
History of CKD | 0.526 | 12.324 | < 0.001 | ||
Radical nephrectomy | 0.079 | 6.565 | < 0.001 |