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Table 9 Kappa coefficients of the original grouping and updated grouping

From: DRG grouping by machine learning: from expert-oriented to data-based method

Folds

Original grouping

Updated grouping

1

0.1536

0.6167

2

0.1639

0.6691

3

0.1736

0.5877

4

0.1851

0.6556

5

0.1766

0.7090

6

0.1577

0.7304

7

0.1648

0.6850

8

0.1374

0.5874

9

0.0836

0.5863

10

0.1379

0.6074

Average

0.1534

0.6435