Research Article

Predictors of COVID-19 Infection: A Prevalence Study of Hospitalized Patients

Table 2

Comparison of laboratory parameters on admission between the COVID-19 and non-COVID-19 groups.

VariablesTotal (n = 218)COVID-19 (n = 96)Non-COVID-19 (n = 122) value

Leukocyte count (109/L)6.1 (4.5–8.9)5.7 (4.1–10.1)6.3 (5.0–8.6)0.756
Neutrophil (109/L)4.1 (2.8–6.9)4.4 (2.8–8.4)3.9 (2.8–5.8)0.068
Lymphocyte (109/L)1.1 (0.7–1.6)0.8 (0.5–1.2)1.4 (1.0–1.9)<0.001
Monocyte (109/L)0.47 (0.30–0.66)0.34 (0.23–0.54)0.51 (0.38–0.76)<0.001
Eosinophil (109/L)0.01 (0.00–0.07)0.00 (0.00–0.01)0.04 (0.01–0.10)<0.001
Hemoglobin (g/L)135.57 ± 24.39131.97 ± 21.04138.39 ± 26.480.054
Platelet count (109/L)203 (163–256)193 (156–243)215 (172–266)0.066
Serum bilirubin (µmol/l)10.5 (6.8–13.9)11.1 (7.9–15.9)10.0 (6.2–13.5)0.061
AST (U/L)20 (16–30)22 (17–36)18 (15–25)0.003
ALT (U/L)19 (13–28)21 (14–37)16 (12–27)0.007
Creatinine (μmol/L)72 (58–84)72 (60–88)70 (57–83)0.244
eGFR (ml/min)97 (84–112)94 (74–107)100 (87–114)0.008
Serum potassium (mmol/L)4.0 (3.7–4.4)3.94 (3.60–4.27)4.10 (3.81–4.37)0.011
CK (U/L)69 (43–101)66 (40–110)72 (48–99)0.787
LDH (U/L)205 (163–277)260 (211–340)176 (152–212)<0.001
INR0.98 (0.94–1.03)0.98 (0.94–1.03)0.98 (0.93–1.04)0.884
CRP (mg/L)14.8 (2.5–44.1)21.3 (8.8–51.2)9.1 (1.0–26.2)<0.001
Procalcitonin (ng/mL)0.05 (0.03–0.1)0.06 (0.03–0.09)0.05 (0.03–0.11)0.404

Data are expressed as mean ± standard deviation and median (Q1–Q3). Comparisons between groups were performed by Student’s t-test and Mann–Whitney’s U test. ALT: alanine aminotransferase; AST: aspartate aminotransferase; BUN: blood urea; CK: creatine kinase; CRP: C-reactive protein; eGFR: estimated glomerular filtration rate; INR: international normalized ratio; LDH: lactate dehydrogenase.