Table 5

Performances of the decision tree models for men (Tehran Lipid and Glucose Study 1999–2012)

Types of decision tree modelsPerformance measuresC5.0QUESTCART
Models (1)Sensitivity72%78%74%
Specificity70%72%72%
PPV23%25%24%
NPV95%96%96%
Accuracy71%73%72%
F-Measure0.350.380.36
G-Mean0.710.750.73
AUC0.800.780.79
Models (2)Sensitivity67%68%64%
Specificity73%78%74%
PPV23%27%23%
NPV95%95%94%
Accuracy73%77%73%
F-Measure0.340.390.34
G-Mean0.700.730.69
AUC0.740.770.78
  • Model (1) was developed based on 15 variables which included 2h-PCPG.

  • Model (2) was developed based on 14 variables (2h-PCPG was excluded).

  • F-Measure: Harmonic mean between PPV and sensitivity, F-Measure=2 (sensitivity×PPV)/(sensitivity+PPV).

  • G-Mean of sensitivity and specificity, G=√sensitivity×specificity.

  • 2h-PCPG, 2-hour postchallenge plasma glucose; AUC, area under the curve; CART, Classification and Regression Tree; G-Mean, geometric mean; NPV, negative predictive value; PPV, positive predictive value; QUEST, Quick Unbiased Efficient Statistical Tree.