Table 2 Selected top 6 features in the second stage

1

Ferritin × platelet count

0.011470

2

Ferritin × lymphocyte count

0.008339

3

Ferritin × total protein

0.008214

4

Ferritin/urea

0.007739

5

Ferritin × ESR

0.007728

6

α1-acid glycoprotein/creatine kinase

0.007360

7

Lymphocyte count/MCV

0.005866

8

α1 acid glycoprotein/PDW

0.005416

9

Creatinine/urea

0.005194

10

α1-acid glycoprotein/age

0.005180