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. 2019 Feb 15;17(4):3174–3180. doi: 10.3892/etm.2019.7281

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Figure 1. — Pearson analysis of the correlation between LUS score and PaO₂/FiO₂, PEEP or lactic acid in patients with acute respiratory distress syndrome. (A) The correlation between LUS score and PaO₂/FiO₂ was negative, and the correlation coefficient was −0.493. (B) A negative correlation between LUS score and PEEP was confirmed with a correlation coefficient of −0.548. (C) A negative correlation between LUS and lactic acid was confirmed with a correlation coefficient of −0.642. LUS, lung ultrasound; PaO₂/FiO₂, partial oxygen pressure/fraction of inspired oxygen; PEEP, positive end-expiratory pressure.