Abstract
BackgroundCoronavirus disease (COVID-19) is an infectious disease caused by a recently discovered coronavirus. Blood test including complete blood count is crucial in diagnosing of several viral and bacterial infection. AimsThis study aimed to assess the association between lymphocyte ratio and other WBC types and severity of COVID-19 pneumonia. MethodsThe design of this study was a cross-sectional study. A complete blood count and erythrocyte sedimentation rate (ESR) was done for one hundred twenty-six COVID-19 patients (76 males and 50 females; aged 20–70 years). Patients were randomly recruited from multicenter in Al-Najaf Governorate, Iraq. ResultsThe study had revealed an inverse correlation between severity of COVID-19 infection and both lymphocytes and monocytes ratio even in patients with normal WBC count. Additionally, there was a direct correlation between platelets and leukocyte count. The relation between leukocyte count and ESR level was significant in a patient with elevated WBC only. ConclusionLymphocytes and monocyte ratios inpatient with COVID-19 infection can be used as predictors for the severity of infection. Increased leukocyte count resulted in increases in platelets inpatient with COVID-19.
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