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. 2016 Feb 18;16:45. doi: 10.1186/s12872-016-0226-2

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© Brozaitiene et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Receiver operating characteristics curves and Kaplan-Meier survival plots for a NT-pro-BNP, b fT3/fT4 ratio, and c fT4 values for predicting all-cause mortality during follow-up. Results are the area under the curve (AUC) and associated 95 % confidence interval (CI). The best cut-off values are labeled. A log-rank test was used to compare survival curves. NT-pro-BNP – N-terminal pro-B-Type natriuretic peptide, fT3/fT4 – Free Triiodothyronine/Free Thyroxine ratio, fT4 – Free Thyroxine