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Table 2 Regression coefficients of the final models sorted in the order of highest statistical significance

From: Predictive models for chronic kidney disease after radical or partial nephrectomy in renal cell cancer using early postoperative serum creatinine levels

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
  1. CKD chronic kidney disease, SCr serum creatinine, BUN blood urea nitrogen, d day, m month, MSE mean squared error