Fig. 6

Nomogram to estimate individual CAD probability. The nomogram was constructed based on logistic regression model for outcome of definite CAD. Each predictor variable characteristic has a corresponding point value based on its position on the top point scale and contribution to the model. The probability of CAD for each subject is calculated by adding of the points for each variable to obtain a total point value which corresponds to a probability of CAD from the scale presented on the bottom line. *P < 0.05, **P < 0.01