Age is presented as median (range). Continuous variables are described in terms of median (IQR), categorical variables are reported as numbers (proportions). ICU - Intensive care unit. Comorbidities include malignancies, diabetes or hypertension. CRP – C-reactive protein. LD – lactate dehydrogenase. IL-6 – interleukin-6. This evidence concerns the gene CRP and diabetes mellitus.