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Table 3 NRI and IDI analyses for risk reclassification of ICU mortality

From: C-reactive protein concentration as a risk predictor of mortality in intensive care unit: a multicenter, prospective, observational study

Models Category-free NRI (95%CI) P value Category-free NRI (95%CI) IDI (95% CI) P value
With Event P value Without Event P value
APACHE II score Referent       Referent  
APACHE II score + CRP > 62.8 mg/L 0.556 (0.3705–0.7484) <.0001 0.02 (0.0123–0.0324) 0.7851 0.53 (0.435–0.7371) <.0001 0.013 (0.008–0.024) 0.0245
  1. APACHE II Acute Physiology And Chronic Health Evaluation II, CI confidence interval, CRP C-reactive protein, IDI integrated discrimination improvement; NRI Net reclassification index
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BMC Anesthesiology

ISSN: 1471-2253

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