In addition to IL-6, CRP at diagnosis showed a good predictive ability of death in CHD patients with COVID-19 (the best cut-off value of 7.4 mg/dL, sensitivity of 87%, and specificity of 94%) (AUC: 0.9306; 95%CI: 0.8175–1.000; p = 0.006) (Figure 6). Here, IL6 is linked to COVID-19.