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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. 1 — Receiver operating characteristic curves for age and NYHA class predicting all-cause mortality during follow up. NYHA – New York Heart Association functional class. Area under the curve of age was 0.642 (95 % confidence interval [CI], 0.604–0.678; p = 0.003), of NYHA 0.690 (95 % CI, 0.653–0.725; p < 0.001)