CRP and COVID-19: On the other hand, the haplotypic combination GCGTG was associated with susceptibility for severe COVID-19 (OR = 2.07, p < 0.001) but as protective for elevated inflammation markers, including PLR ≥303, NLR ≥11, SII ≥2892, NHL ≥0.83, LCRP ≤825, CRP ≥9.9 mg/dL, D-dimer ≥1.25 μg/mL and procalcitonin ≥0.15 mg/dL (Fig. 2C).