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. 2018 Jul 5;13(7):e0199610. doi: 10.1371/journal.pone.0199610

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© 2018 Carron et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — As shown, leptin was positively correlated with BMI, serum IL-6, PaO₂^POST, and ΔPaO₂ and negatively correlated with PaO₂^PRE, PaCO₂^PRE, PaCO₂^POST, and ΔPaCO₂. BMI, body mass index; IL-6, interleukin 6; PaCO₂^POST, postoperative arterial partial pressure of carbon dioxide (PaCO₂); PaCO₂^PRE, preoperative PaCO₂; ΔPaCO₂, PaCO₂^POST minus PaCO₂^PRE; PaO₂^POST, postoperative arterial partial pressure of oxygen (PaO₂); PaO₂^PRE, preoperative PaO₂; ΔPaO₂, PaO₂^POST minus PaO₂^PRE; r, Bravais-Pearson correlation coefficient.