Research Article

The Relation between Immunological Features and the Positive SARS-CoV-2 Nucleic Acid in Patients with Nonsevere COVID⁃19

Table 1

Patient demographics and baseline characteristics of nonsevere COVID-19.

All cases (n = 122), mean (CI 95%)Mild cases (n = 38), mean (CI 95%)Moderate cases (n = 84), mean (CI 95%) value

Female, n (%)40 (32.79%)10 (26.32%)30 (35.71%)0.306
Age, median years (years)37.21 (35.28–39.15)32.16 (29.09–35.23)39.50 (37.17–41.83)<0.001
BMI value (kg/m2)24.75 (24.05–25.45)24.53 (23.02–26.04)24.85 (24.07–25.62)0.706
Smoker, n (%)15 (12.30%)7 (18.42%)8 (9.52%)0.232
Dyspepsia, n (%)3 (2.46%)1 (2.63%)2 (2.38%)1.000
Cough, n (%)24 (19.67%)9 (23.68%)15 (17.86%)0.453
Fever, n (%)29 (23.77%)12 (31.58%)17 (20.24%)0.173
Hyposmia, n (%)10 (8.20%)9 (23.68%)1 (1.09%)<0.001
Blood’s LYM, n ×n 109/L1.94 (1.76–2.11)2.42 (1.97–2.88)1.72 (1.59–1.85)0.004
ALT in serum (U/l)36.38 (31.08–41.68)35.17 (23.30–47.05)36.92 (31.21–42.63)0.764
AST in serum (U/l)29.10 (26.39–31.80)31.08 (24.00–38.16)28.20 (25.80–30.61)0.441
ALB in serum (g/l)45.51 (39.27–51.75)54.53 (34.37–74.69)41.43 (40.12–42.74)0.197
IgM of COVID-1917.20 (9.46–24.94)7.41 (1.76–13.07)21.63 (10.72–32.54)0.023
IgG of COVID-1924.42 (17.10–31.75)15.13 (5.79–24.47)28.63 (18.88–38.38)0.047
CD4+T cell count (×106/L)814.69 (704.69–924.68)943.23 (753.01–1133.45)756.54 (621.23–891.85)0.120
CD8+T cell count (×106/L)483.89 (423.31–544.46)606.30 (477.12–735.47)428.51 (364.25–492.77)0.007
NPD, days20.49 (17.50–3.49)24.53 (14.32–28.21)24.8 5 (17.01–23.27)0.733

BMI, body mass index; LYM, absolute value of lymphocyte count; ALT, alanine aminotransferase; AST, aspartate aminotransferase; ALB, albumin; n, number; IgM, specific immunoglobulin M (IgM); IgG, specific immunoglobulin G; NPD, nucleic acid positive duration.