Research Article

Hematological and Biochemical Laboratory Parameters in COVID-19 Patients: A Retrospective Modeling Study of Severity and Mortality Predictors

Table 2

Hematological data of all patients: deceased, recovered, severe, and nonsevere COVID-19 cases.

VariablesNormal rangeTotalOutcome valueSeverity value
DeceasedRecoveredSevereNonsevere

WBC (×109/L)4.2-10.811.7 (8.4-15.8)11.7 (8.4-15.8)7.6 (5.3-10.3)<0.00111.5 (8.1-15.4)7.7 (5.3-10.4)<0.001
LYM (×109/L)1.5-4.50.8 (0.5-1.1)0.8 (0.5-1.1)1 (0.6-1.5)0.0070.8 (0.5-1.1)1 (0.7-1.5)0.002
NEU (×109/L)1.7-7.96 (4-9)10 (7-14)6 (4-8)<0.00110 (6-14)8 (6-12)<0.001
NLR7 (3.5-11.12)12.14 (7.5-17.6)5.6 (3.2-9.8)<0.00112.43 (7.3-17.6)5.6 (3.2-9.8)<0.001
MO (×109/L)0.1-0.90.1 (0.04-0.17)0.04 (0-0.13)0.09 (0-0.16)0.130.06 (0-0.19)0.1 (0.05-0.16)0.009
EOS (×109/L)0.02-0.550.09 (0-0.16)0.04 (0-0.13)0.09 (0-0.16)0.030.04 (0-0.13)0.09 (0-0.16)0.007
RBC (×1012/L)4.2-5.654.4 (3.95-4.85)4.14 (3.5-4.6)4.4 (4-4.8)<0.0014.1 (3.5-4.7)4.4 (4-4.8)0.001
HGB (g/dl)12-15<0.0010.001
PLT (×109/L)160-385220 (169-288)213 (147.5-245)224 (174-297)0.002215 (144.2-251)223 (174.7-297.2)0.004
HCT (%)38-490.0010.013
MCV (fl)80-9887.2 (83.8-90.6)87 (84.9-90.86)87 (83.69-90.63)0.25987.5 (84.8-90.67)87.1 (83.1-90.7)0.385
MCH (pg)28-3229.14 (27.5-30.4)28.9 (27.5-30)29.2 (27.4-30.5)0.39528.9 (27.5-30.1)29.2 (27.5-30.5)0.504
MCHC (g/dl)33-360.0030.001
ESR (mm/hr)0-2046 (27-66)54 (34-81)44 (26-64)0.02550.5 (30-81.5)45 (26.75-65)0.249
INR0.8-1.21.1 (1-1.2)1.2 (1.1-1.45)1.08 (1-1.17)<0.0011.23 (1.1-1.48)1.08 (1-1.15)<0.001
PT (sec)11-1313.2 (12.5-14.1)13.95 (13.1-16)13 (12.5-13.8)<0.00114.2 (13.1-16.17)13 (12.5-13.8)<0.001
PTT (sec)21-3232 (28.1-36.1)33 (28.9-37.7)31.7 (28-35.1)0.06332.6 (28.8-37)31.8 (28-35.2)0.282

Note: Data are and median (IQR). values for differences between the two groups were obtained by the Student -test or the Mann–Whitney U test. IQR: interquartile range; WBC: white blood cells; LYM: lymphocytes; NEU: neutrophil; NLR: neutrophil-to-lymphocyte ratio; MO: monocyte; monocyte-to-lymphocyte ratio; EOS: eosinophil; RBC: red blood cells; HGB: hemoglobin; PLT: platelet cells; HCT: hematocrit; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; ESR: erythrocyte sedimentation rate; INR: international normalized ratio; PT: prothrombin time; PTT: partial thromboplastin time. The threshold for significance is the Bonferroni-corrected from to .