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Table 7 Chi squared test

From: Machine learning can predict survival of patients with heart failure from serum creatinine and ejection fraction alone

Chi squared test

Rank

Feature

p-value

1

Ejection fraction

0.000500

2

Serum creatinine

0.000500

3

Serum sodium

0.003998

4

Age

0.005997

5

High blood pressure

0.181909

6

Anaemia

0.260370

7

Creatinine phosphokinase

0.377811

8

Platelets

0.637681

9

Smoking

0.889555

10

Sex

1

11

Diabetes

1

  1. Results of the application of the chi squared test between each feature and the target feature death event