• Future oncology · Jan 2020

    A prognostic nomogram in patients with distant metastasis of pancreatic neuroendocrine tumors: a population-based study.

    • Jin-Song Cai, Hai-Yan Chen, Yuan-Fei Lu, and Ri-Sheng Yu.
    • Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.
    • Future Oncol. 2020 Jan 1; 16 (2): 4369-4379.

    AbstractAim: Prognostic factors in patients with distant metastatic pancreatic neuroendocrine tumors (PNETs) remain uncertain. The purpose of our study is to establish a nomogram to predict survival outcomes in patients with metastatic PNETs. Methods: A total of 878 patients diagnosed with PNETs in the Surveillance, Epidemiology and End Results database between 2004 and 2016 were retrospectively identified. The Kaplan-Meier survival analysis with log-rank test was used to analyze survival outcomes. The nomogram was established after a univariate and multivariate Cox analysis. Results: The independent prognostic variables, including age, tumor grade and primary site surgery were applied to develop a nomogram. The original concordance index was 0.773 (95% CI: 0.751-0.795), and the bias-corrected concordance index was 0.769 (95% CI: 0.748-0.791). The internal calibration curves showed well consistency and veracity in predicting cancer-specific survival probabilities. Conclusion: A nomogram was constructed and verified to predict survival outcomes in patients with distant-stage PNETs.

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