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Table 5 Comparison of prediction performance by net reclassification improvement (NRI) and integrated difference improvement (IDI) with relative 95% confidence interval (CI) and significance levels

From: Prediction model for high glycated hemoglobin concentration among ethnic Chinese in Taiwan

Comparison set

Models

NRI*

95% CI

P value

IDI

95% CI

P value

1

Clinical coefficient-based vs. Cambridge

0.066

-0.054 - 0.186

0.28

0.007

-0.001 - 0.014

0.051

2

Biochemical coefficient-based vs. Cambridge

0.294

0.141 - 0.447

0.0004

0.021

0.004 - 0.037

0.008

3

Biochemical coefficient-based vs. clinical coefficient-based

0.244

0.122 - 0.366

0.0002

0.014

-0.002 - 0.030

0.053

4

Clinical coefficient-based vs. clinical point-based

0.090

-0.022 - 0.203

0.23

0.009

-0.001 - 0.019

0.057

5

Biochemical coefficient-based vs. biochemical point-based

0.362

0.262 - 0.462

0.0003

0.023

0.005 - 0.041

0.006

6

Biochemical point-based vs. clinical point-based

-0.015

-0.139 - 0.109

0.82

0.00003

-0.001 - 0.001

0.49

  1. *Presumed risk categories for NRI according to quartile values (0.6%, 1.2% and 2.6%)