21 June 2020>: Database Analysis
Development and Validation of Prognostic Nomograms for Patients with Duodenal Neuroendocrine Neoplasms
Shenghong Sun BDEF* , Wei Wang ACDFG** , Chiyi He ABG*DOI: 10.12659/MSM.922613
Med Sci Monit 2020; 26:e922613
Table 4 The C-index for nomograms and the AJCC 7th staging system in patients with D-NENs.
C-index (95% CI) | Training cohort | Validation cohort | All cohort | |
---|---|---|---|---|
Overall survival | Nomogram | 0.739 (0.690–0.788) | 0.696 (0.618–0.774) | 0.722 (0.679–0.765) |
AJCC 7 staging system | 0.534 (0.477–0.591) | 0.604 (0.522–0.686) | 0.561 (0.516–0.606) | |
Cancer-specific survival | Nomogram | 0.859 (0.802–0.916) | 0.781 (0.659–0.903) | 0.801 (0.736–0.866) |
AJCC 7 staging system | 0.718 (0.626–0.810) | 0.719 (0.590–0.848) | 0.720 (0.646–0.794) | |
AJCC – American Joint Committee on Cancer; D-NEN – duodenal neuroendocrine neoplasms. |