Fig. 4

19 features used for decision tree model generation and their information gain values. Features were ranked according to their information gain values which reflect the entropy gain with respect to the predictive outcome. The longer the blue transverse column (the higher the value), the greater importance on the outcome. (SBP, systolic blood pressure; HDL, high density lipoprotein; TC, total cholesterol; γ-GLT, γ-glutamyl transpeptidase)