Figure 3.
Risk Prediction Nomogram to Determine the Risk of CHD After BMT
(A) The risk prediction nomogram for post-BMT CHD. The nomogram is characterized by 1 scale corresponding to each variable, a score scale, a total risk score scale, and a CHD rate scale that shows CHD probability at 10 years and 20 years after BMT. (B) The risk prediction nomogram for calculating CHD risk in a hypothetical patient. CHD probability estimation: a line is drawn from the value of each category to the score line. Age at BMT 60 years, score = 75; male sex, score = 14; history of diabetes at BMT, score = 20; and pre-BMT chest radiation, score = 25. The points are then added to determine the total score (134), and a line is drawn downward from the total points scale to find the CHD rate at 10 years (30%) and at 20 years (72%).