Analysis of risk factors for postoperative deep vein thrombosis after craniotomy and nomogram model construction

Figure 1 Screening process of sample. DVT: Deep vein thrombosis.

Figure 2 Predictive nomogram for postoperative deep vein thrombosis in patients with craniotomy. IPC: Intermittent pneumatic compression.

Figure 3  Calibration curve for nomogram of postoperative deep vein thrombosis in patients with craniotomy.

Figure 4 Validation of predictive model performance. A: The receiver operating characteristic curve of the nomogram model. The area under the curve was used to evaluate the discrimination of the model; B: The decision curve analysis for nomogram to predict the risk of postoperative deep vein thrombosis in patients with craniotomy; C: The clinical impact curves for nomogram to predict the risk of postoperative deep vein thrombosis in patients with craniotomy. AUC: Area under the curve.