Figure 1.

Inflammatory factors in patients with severe COVID‐19 before and after comprehensive treatment. Levels of IL‐1β, IL‐2R, IL‐6, IL‐8, IL‐10, TNF‐α, CRP, PCT, and serum ferritin were measured before and after treatment. Data are expressed as mean ± SD and were compared using the independent‐samples t test. COVID‐19, coronavirus disease 2019; CRP, C‐reactive protein; IL‐1β, interleukin‐1β; IL‐2R, IL‐2 receptor; PCT, procalcitonin; TNF‐α, tumor necrosis factor‐α. *P < .05, **P < .01, ***P < .001