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. 2022 Feb 3;2(2):92–102. doi: 10.1016/j.jointm.2021.12.003

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© 2022 The Authors. Published by Elsevier B.V. on behalf of Chinese Medical Association.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 3 — ROC curve of respiratory support decision score to 28-day mortality and surviving analysis with different decision score range (<11.5 and >11.5). A: ROC curve. The AUC was 0.796 (95% CI: 0.657–0.934, P = 0.001) and the cut-off was 11.5 (sensitivity = 0.679, specificity = 0.889). B: Surviving analysis. Using the log-rank test, patients with a higher score (>11.5) had a higher proportion of survival than those with a score of <11.5 (P = 0.001).

AUC: Area under the curve; CI: Confidence interval; ROC: Receiver operating characteristic.