Table 6

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

Types of decision tree modelsPerformance measuresC5.0QUESTCART
Models (1)Sensitivity75%78%70%
Specificity78%78%79%
PPV29%30%29%
NPV96%97%96%
Accuracy78%78%78%
F-Measure0.420.430.41
G-Mean0.760.780.74
AUC0.810.810.81
Models (2)Sensitivity73%73%66%
Specificity77%78%78%
PPV28%29%27%
NPV96%96%95%
Accuracy77%78%77%
F-Measure0.400.420.38
G-Mean0.750.750.72
AUC0.800.810.81
  • Model (1) was developed based on 20 variables which included 2h-PCPG.

  • Model (2) was developed based on 19 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.