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Table 3 Performance of models in the SEER training set

From: Construction of a survival prediction model for high-and low -grade UTUC after tumor resection based on “SEER database”: a multicenter study

Models

C-index(95% CI)

P*

High grade

 Model 1

0.740 (0.727–0.754)

 Model 2

0.734 (0.720–0.747)

0.0006

Low grade

 Model 3

0.717 (0.673–0.761)

 Model 4

0.714 (0.671–0.758)

0.474

  1. SEER the Surveillance Epidemiology, and End Results database, AJCC the American Joint Committee on Cancer
  2. *P values were obtained by comparing model 1 with model 2,as well as model 3 with model 4