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. 2016 May 4;14:117. doi: 10.1186/s12967-016-0862-4

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© Day. 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 — NNT and clinical decisions. On the left is a single patient for whom it is “Best to act”, indicated by the “thumb’s up” sign. The horizontal scale refers to the number of patients needed to treat (NNT) in order to help one. The range [NNT _Lower, NNT _Upper] should describe a range of discomfort with either decision, Act or Wait