Moreover, age, sex, cerebrovascular disease, white blood cell count, neutrophil count, c-reactive protein, blood oxygen, lactic dehydrogenase, d-dimer, absolute and percentage volumes of the total pneumonia infection, GGO, consolidation, and average HU of consolidation and pleural effusion were also associated with death (see univariable analysis in Table 4). Here, CRP is linked to Pleural effusion.