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Table 4 NRI and IDI of the nomogram and the traditional AJCC staging system in OS prediction for RC patients

From: Risk prediction of second primary malignancies in patients after rectal cancer: analysis based on SEER Program

 

NRI

  

IDI

  

1-Year

3-Year

5-Year

1-Year

3-Year

5-Year

Training set(N = 585)

 Estimate

0.247

0.445

0.508

0.030

0.072

0.080

 95%CI

0.022–0.503

0.363–0.689

0.385–0.682

   

 P value

   

<0.001

<0.001

<0.001

Validation set(N = 156)

 Estimate

0.247

0.445

0.508

0.068

0.131

0.141

 95%CI

0.024–0.506

0.299–0.682

0.400–0.720

   

 P value

   

<0.001

<0.001

<0.001

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BMC Gastroenterology

ISSN: 1471-230X

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