Comparative Evaluation of Routine Laboratory Tests (Based on Cell Ratios) in Patients with Acute Pulmonary Coronavirus Infection and Acute Pulmonary Non-Coronavirus Infection in Zabol City

Acute respiratory infections are caused by a wide range of viruses. Respiratory spread is the main process of disease transmission. We evaluated neutrophil-to-lymphocyte ratio(NLR), platelet-to-lymphocyte ratio (PLR) and monocyte-lymphocyte ratio (MLR) indices.

This descriptive-analytical study was conducted on patients-files between September 2019 and March 2021. 102 patients were evaluated. 26 men and 30 women were included in the acute coronary group, 16 men and 30 women were included in the non-acute coronary group.

The mean age of women (53.0 ± 1.9) was higher than that of men (50.2 ± 2.02) in the acute coronary group. The mean NLR index in coronary men (65 ± 1.47) was higher than non-acute coronary men (54 ± 1.76). It was also higher in coronary women (54 ± 2.78 ± 10) than non-acute coronary women (24 ± 1.97) (p value > 0.05). PLR index of coronary men (85 ± 43.15) was lower than the non-acute men (48.3 ± 48.15). But this index was lower in coronary women (36.3 ± 5.22) than the non-acute women (2.4 ± 2.25) (p value > 0.05). The mean of MLR index in coronary men (0.16 ± 0.025) was less than the coronary women (0.03 ± 0.26) (p value > 0.05). The mean MLR index in non-acute men (0.04 ± 0.22) was lower than the non-acute women (0.02 ± 0.23) (p value > 0.05). The mean MLR in the coronary men (0.025 ± 0.16) was lower than non-acute men (0.04 ± 0.22). This index was higher in coronary women (0.03 ± 0.26) than the non-acut women (0.02 ± 0.23) (p value > 0.05).

The changes in NLR, PLR and MLR indices were in accordance with global studies but were not significant. It may be due to immune responses of patients and laboratory errors (sampling and performing techniques)