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Table 3 NRI and IDI of the nomogram and the TNM stage in survival prediction for SCLC patients in the training and validation sets

From: Construction and validation of a nomogram to predict the overall survival of small cell lung cancer: a multicenter retrospective study in Shandong province, China

Index

Training set

 

Validation set

Estimate

95%CI

p

 

Estimate

95%CI

p

NRI (vs. the TNM stage)

    

 1-year OS

0.255

0.189–0.308

< 0.001

 

0.154

0.034–0.257

0.012

 3-year OS

0.210

0.143–0.274

< 0.001

 

0.157

-0.030-0.271

0.096

 5-year OS

0.198

0.106–0.274

< 0.001

 

-0.040

-0.226-0.106

0.363

IDI (vs. the TNM stage)

    

 1-year OS

0.056

0.040–0.080

< 0.001

 

0.040

0.014–0.065

0.004

 3-year OS

0.047

0.032–0.071

< 0.001

 

0.025

-0.010-0.052

0.112

 5-year OS

0.041

0.024–0.067

< 0.001

 

-0.006

-0.064-0.031

0.715

  1. Note: NRI, Net Reclassification Improvement; IDI, Integrated Discrimination Improvement; OS, overall survival
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BMC Cancer

ISSN: 1471-2407

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