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Correlation between baseline biomarkers and clinical outcomes (A) and biomarkers and baseline covariates (B). p values are based on Pearson correlation unadjusted for covariates, placebo arm only for A and for placebo and tocilizumab arms for B. *p ≤ 0.05; **p ≤ 0.01. CRP = C-reactive protein, IL-6 = interleukin-6, LDH = lactate dehydrogenase, %Lym = % lymphocytes, %Neut = % neutrophils, STRAT = stratification factor.
