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Table 2 C-indexes for the nomograms and TNM stage systems in patients with advanced ECCA

From: Prognostic model for oversurvival and tumor-specific survival prediction in patients with advanced extrahepatic cholangiocarcinoma: a population-based analysis

C-index

Training cohort

Validation cohort

HR

95%CI

HR

95%CI

Overall survival

0.714

0.677–0.751

0.647

0.600–0.694

Cancer-specific survival

0.725

0.688–0.762

0.675

0.624–0.726

AJCC

0.651

0.612–0.690

0.591

0.548–0.634

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BMC Gastroenterology

ISSN: 1471-230X

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