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Table 8 Category-free NRI and IDI for the incremental predictive values of various models

From: Impacts of triglyceride-glucose index on prognosis of patients with type 2 diabetes mellitus and non-ST-segment elevation acute coronary syndrome: results from an observational cohort study in China

  Category-free NRI IDI
Index 95% CI P value Index 95% CI P value
Baseline risk modela Reference Reference
+ FBG 0.076 − 0.146 to 0.190 0.358 0.005 − 0.005 to 0.019 0.408
+ HbA1c 0.145 0.050–0.234 0.020 0.014 0.001–0.038 0.020
+ TGs 0.318 0.143–0.399 < 0.001 0.067 0.028–0.108 < 0.001
+ TyG index 0.346 0.230–0.430 < 0.001 0.087 0.039–0.128 < 0.001
  1. FBG fasting blood glucose, HbA1c glycosylated hemoglobin A1c, TGs triglycerides, TyG triglyceride glucose, NRI net reclassification improvement, IDI integrated discrimination improvement, CI confidence interval
  2. aThe baseline risk model includes age, sex (female), smoking, SBP, prior MI, prior PCI, TC, HDL-C, eGFR, LVEF, SYNTAX score, LM treatment, complete revascularization, number of stents and statins at discharge