Figure 4.

Alteration in arterial blood gas parameters of the patients before and after treatment. (A) CRP, (B) ESR, (C) PCT, (D) IL-6, and (E) IL-10 were decreased in the common and severely affected patients with COVID-19 after the treatment. Different letters (a, b and c) above the bar indicate statistical difference among common patients (P<0.05) and severely affected patients (P<0.05) after the treatments. Comparison was carried out by the LSD test. CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; PCT, procalitonin; IL, interleukin.