Fig. 2

A nomogram for prediction of PAL risk after minimally invasive pulmonary resection. Draw a vertical line from the corresponding axis of each variable to the points axis to acquire the point of this variable. Make a summation of the points for each variable to yield a total score, and the probability of PAL could be estimated by projecting the total score to the lower total point axis. BMI, body mass index; FEV1, forced expiratory volume in one second; PAL, prolonged air leak