Conclusion
This study is the first to utilize the SEER database to construct a comprehensive CVC nomogram based on an analysis of various variables. One intriguing finding was that divorce was a risk factor that harms the prognosis. Our nomogram may be useful as a tool to assist clinical staff in determining more-precise forecasts of the 3-, 5-, and 8-year OS rates of patients with CVC compared with using the AJCC staging system.