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. 2020 Jun 16;9(6):1879. doi: 10.3390/jcm9061879

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(A,B) ROC curve of statistically significant examined variables. Sensitivity–specificity of different variables for mortality (A) and higher NT-proBNP levels (≥75th percentile) (B). Univariable Cox regression analysis reported a significant relationship between 30-day mortality and QTe_SD (hazard ratio: 1.10, 95% confidence limit: 1.03–1.18, p < 0.05), mean Te (hazard ratio 1.02, 95% confidence limit: 1.01–1.04, p < 0.001) and Te_SD (hazard ratio 1.12, 95% confidence limit: 1.01–1.23, p < 0.001) (Table 3). All number value in the table of the figure should be intended as follow: .526 means 0.526.