Figure 2.

Tree model for insulin resistance using only fasting glucose, insulin, age, sex, and BMI. Only fasting insulin was a significant determinant in the model. The model is built on a randomly selected training cohort of 125 subjects and tested on 42 subjects. An arbitrary risk score of 0.25 is calculated. Therefore, if a terminal node has a >25% proportion, those subjects are more likely to be insulin resistant (dashed lines). The decision node for being insulin resistant is having a fasting insulin >10.6 μU/mL.