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Table 3 The net reclassification improvement and integrated discrimination improvement of the nomogram

From: Prognostic nomograms for breast cancer with lung metastasis: a SEER-based population study

Category

NRI (95% CI)

P

IDI (95% CI)

P

Training group

 1-year OS

0.471 (0.337–0.555)

< 0.01

0.132 (0.103–0.177)

< 0.01

 2-year OS

0.377 (0.271–0.463)

< 0.01

0.165 (0.127–0.219)

< 0.01

 3-year OS

0.375 (0.293–0.453)

< 0.01

0.162 (0.127–0.209)

< 0.01

Testing group

 1-year OS

0.421 (0.299–0.581)

< 0.01

0.139 (0.101–0.217)

< 0.01

 2-year OS

0.382 (0.273–0.498)

< 0.01

0.177 (0.129–0.244)

< 0.01

 3-year OS

0.297 (0.206–0.395)

< 0.01

0.180 (0.126–0.259)

< 0.01

  1. CI confidence interval, IDI integrated discrimination improvement, NRI net reclassification improvement, OS overall survival