Construction of a nomogram model to predict technical difficulty in performing laparoscopic sphincter-preserving radical resection for rectal cancer

Figure 8 Evaluation of net benefit using decision curve analysis for the nomogram prediction model. Y-axis measures net benefit, grey line indicates that all patients with rectal cancer experienced highly difficult laparoscopic sphincter-preserving radical resection for rectal cancer, and the green line indicates the hypothesis that no patients experienced highly difficult laparoscopic sphincter-preserving radical resection for rectal cancer.