Figure 7. . Pooling of odds ratios for incidence of mechanical ventilation and mean differences for length of mechanical ventilation.

The use of corticosteroids was compared with control groups. Heterogeneity was quantified using I² statistics. (A) Forest plot for the pooling of ORs for incidence of mechanical ventilation. OR <1 indicates beneficial treatment effects of corticosteroids compared with control groups. (B) Forest plot for the pooling of MDs for length of mechanical ventilation. MD <0 indicates beneficial treatment effects of corticosteroids compared with control groups.

MD: Mean difference; OR: Odds ratio; SD: Standard deviation; TCZ: Tocilizumab.