Fig. 1

Nomogram score for OS probability estimation. a Nomogram to estimate the risk of 5-year OS in patients with sites-distant metastases. b Decision curve for the prediction of 5-year OS. Decision curve analysis identified potential factors that can exert clinical influence based on stepwise regression analysis and the net benefit of using nomogram score to stratify patients. Four models were built before the final nomogram was constructed: predmodelA (FIGO, Grade, Race, and Age), predmodelB (FIGO, Grade, Race, Surgery, and site-distant metastases), predmodelC (FIGO, age), and predmodelE (FIGO, Grade, Race, and Histology). c The calibration curve for predicting 5-year OS survival. Nomogram-predicted risk of overall survival is showed on the x-axis, actual overall survival is mirrored on the y-axis