Fig. 5

The clinical decision curves of the nomograms. (a–c) The DCA curves of the nomogram were used to predict ipsilateral CLNM in the train set, valid set and all cases. (d–f) The DCA curves of the nomogram were used to predict contralateral CLNM in the train set, valid set and all cases. The horizontal axis of the image is the probability threshold range calculated by the prediction model, and the vertical axis is the clinical net benefit. The red lines represent the net benefit curve of treatment for patients within each prediction threshold of the clinical prediction model. The gray lines represent the clinical net revenue when treatment is administered to all patients, while the black lines represent the revenue when no treatment is given to any patient. When the red line is above both the gray and black lines, it can be considered that using the predictive model can yield clinical net revenue.