Table 2 Comparison of NRI and IDI between models.

From: Development and validation of a risk model for intracardiac thrombosis in patients with dilated cardiomyopathy: a retrospective study

Index

Model BICa VS Model S/Lb

Model S/L VS Model R2c

Baseline modeld VS Model S/L-LVTe

Baseline model VS Model S/L-LATf

NRI (categorical) [95% CI], p-value

0.083 [0.015–0.150], 0.02

 − 0.002 [− 0.062 to 0.058], 0.95

0.021 [− 0.021 to 0.063], 0.33

0.2681 [0.092 to 0.445], < 0.01

NRI + 

0.07

0

 − 0.019

0.133

NRI − 

0.01

0

0.04

0.135

NRI (continuous) [95% CI], p-value

0.492 [0.278–0.705], < 0.001

0.277 [0.026 to 0.527], 0.03

0.489 [0.207 to 0.772], < 0.001

0.744 [0.261 to 1.227], < 0.01

IDI [95% CI], p-value

0.043 [0.026–0.060], < 0.001

0.004 [− 0.004 to 0.011], 0.36

0.021 [0.001 to 0.041], 0.04

0.03 [− 0.042 to 0.102], 0.417

  1. Variables included in each model are as follows: aModel BIC: Hematocrit, WBC, Pulse pressure, D-dimer; bModel S/L: Hematocrit, WBC, hs-CRP, NT-proBNP, Pulse pressure, History of stroke, D-dimer; cModel R2: Hematocrit, WBC, hs-CRP, NT-proBNP, Pulse pressure, History of stroke, D-dimer, UA, dBaseline model: Hematocrit, WBC, hs-CRP, NT-proBNP, Pulse pressure, History of stroke, D-dimer; eModel S/L-LVT: Hematocrit, Age of onset, hs-CRP, NT-proBNP, Pulse pressure, History of stroke, D-dimer; fModel S/L-LAT: AF, AG, WBC, hs-CRP, NT-proBNP, Pulse pressure.
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