Fig. 1.

Laboratory blood indicators correlated with the severity of COVID-. Association between patient age and D-dimer, ferritin, LDH, ESR, CRP, CK, neutrophils, and lymphocytes was determined. The correlation was determined by Pearson correlation and aligned by linear regression. The D-dimer, LDH, CK, ESR, and CRP were positively correlated with patient age and significantly changed (A, B, & C) while no significant changes were detected between age and ferritin, neutrophils, and lymphocytes (A & D).