Fig. 1

Nomogram to predict the probability of pulmonary infection after cardiopulmonary bypass surgery. To estimate the probability of pulmonary infection after cardiopulmonary bypass surgery, the value of each factor is acquired on each variable axis, then a straight line is drawn upward to determine the points. The sum of these 6 numbers is located on the Total Points axis and a line is drawn downward to the Diagnostic Possibility axes to determine the likelihood of pulmonary infection after cardiopulmonary bypass surgery