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. 2021 Aug 20;10(20):7347–7359. doi: 10.1002/cam4.4223

TABLE 2.

IDI and NRI of the nomograms on CSS and OS

Survival time Items Training set Validation set
Est (95% CI) Est (95% CI)
CSS 1‐year IDI 0.18 (0.17–0.18)*** 0.17 (0.16–0.19)***
NRI 0.47 (0.45–0.49)*** 0.47 (0.45–0.50)***
3‐year IDI 0.20 (0.19–0.21)*** 0.19 (0.18–0.21)***
NRI 0.48 (0.47–0.50)*** 0.48 (0.45–0.51)***
5‐year IDI 0.23 (0.22–0.25)*** 0.21 (0.19–0.24)***
NRI 0.51 (0.49–0.54)*** 0.48(0.44–0.53)***
OS 1‐year IDI 0.18 (0.17–0.18)*** 0.18 (0.16–0.19)***
NRI 0.46 (0.44–0.47)*** 0.46 (0.44–0.48)***
3‐year IDI 0.20 (0.19–0.21)*** 0.19 (0.18–0.21)***
NRI 0.47 (0.45–0.49)*** 0.46 (0.43–0.50)***
5‐year IDI 0.22 (0.21–0.24)*** 0.21 (0.18–0.23)***
NRI 0.49 (0.45–0.52)*** 0.46 (0.33–0.51)***

Abbreviations: CI: confidence interval; CSS, cause‐specific survival; Est, Empower Stat; IDI, integrated discrimination improvement index; NRI, category‐less net reclassification index; OS, overall survival.

***

p < 0.001.