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Table 3 C-indexes for the nomograms and TNM stage system in elderly patients with SCLC

From: A prognostic nomogram to predict survival in elderly patients with small-cell lung cancer: a large population-based cohort study and external validation

Survival

 

Training cohort

P value

Internal validation cohort

P value

Overall survival

Nomogram

0.751(0.739–0.763)

<0.001

0.745(0.725–0.765)

<0.001

7th TNM stage

0.625(0.611–0.639)

0.622(0.602–0.642)

Cancer-specific survival

Nomogram

0.757(0.745–0.769)

<0.001

0.756(0.736–0.776)

<0.001

7th TNM stage

0.631(0.617–0.645)

0.638(0.618–0.658)

  1. TNM Tumor-Node-Metastasis, C-index Concordance index, SCLC Small cell lung cancer