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. 2015 Sep 14;15:124. doi: 10.1186/s12871-015-0103-z

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© Liu et al. 2015

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. 4 — Limits of agreement between predicted PEEP and applied PEEP. Horizontal dashed line indicates zero difference. Solid horizontal lines indicate the mean and 95 % confidence intervals. Panel a Bland-Altman plot for all conditions during cNAVA (solid symbols) shows very little difference between mathematically predicted PEEP and applied PEEP. The mean difference was 0.2 ± 0.8 cm H₂O. Panel b Bland-Altman plot for all conditions during tNAVA (open symbols) shows a greater little difference between predicted and applied PEEP. The mean difference was −3.6 ± 2.0 cm H₂O