Prognostic value of admission ionized calcium for short-term mortality in critically Ill children with sepsis: a single-center retrospective cohort study.

Although the improvement in AUC did not reach statistical significance according to the DeLong test ( p = 0.126), reclassification analyses demonstrated a significant enhancement in risk discrimination ( Figure 4b ), with an integrated discrimination improvement (IDI) of 0.116 ( p = 0.012), a net reclassification improvement (NRI) of 0.324 ( p = 0.036), and a median improvement in predicted risk of 0.034 ( p = 0.036; Supplementary Table S7 ). 3.6.

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