Pleth variability index as a non-invasive prognostic indicator in acute exacerbation of chronic obstructive pulmonary disease.

BMC Pulm Med · 2026 · PMC12977669 · PMID 41645130

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closest p · 1.9× alpha

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did not reach statistical significancep = 0.093so close (0.05 < p ≤ 0.1)

Although the improvement in discriminative performance did not reach statistical significance (ΔAUC = 0.111; 95% CI: −0.0186 to 0.240; z = 1.679; p = 0.093 by DeLong test), the addition of PVI resulted in a numerically relevant increase in AUC.

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