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. 2021 Jun 8;204:88–94. doi: 10.1016/j.thromres.2021.06.003

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Fig. 2 — Linear regression of log CCL2 and log PaO₂/FiO_2nadir. p < 0.001 (A). CCL2 values according to different predefined levels of severity of gas exchange impairment. p for trend <0.001 by Jonckheere-Terpstra test (B).

CCL2: C—C motive chemokine ligand 2; PaO₂/FiO_2nadir: the lowest arterial partial pressure of oxygen [PaO₂] to fraction of inspired oxygen [FiO₂] ratio [P/F] value during the hospital stay.