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. 2021 Mar 3;11:5105. doi: 10.1038/s41598-021-84440-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Dot plot showing the PaO₂/FiO₂ ratio of the NV group (568 mmHg; 546–571), the PaO₂/FiO₂ ratio of the MV group at the start of the experiment (521 mmHg; 454–552) and the PaO₂/FiO₂ ratio of MV group at the end of the experiment (403 mmHg; 357–444). No statistically significant difference was found when comparing the PaO₂/FiO₂ ratio of the NV group (568 mmHg; 546–571) to the PaO₂/FiO₂ ratio of the MV group at the start of the experiment (521 mmHg; 454–552, p = 0.3700). The PaO₂/FiO₂ ratio of MV group at the end of the experiment (403 mmHg; 357–444) when compared to the PaO₂/FiO₂ ratio of the MV group at the start of the experiment (521 mmHg; 454–552, p = 0.0164) was statistically significant.