Viral RNA Load in Symptomatic and Asymptomatic COVID-19 Omicron Variant-Positive Patients
Table 1
Comparison of asymptomatic and symptomatic groups by gender, age group, vaccination status, disease severity, antibody levels, time to negative nucleic acid test, and presence of comorbidities.
Variable
Asymptomatic (n = 22)
Symptomatic (n = 339)
Sex
—
—
—
Male
6 (27.3)
159 (46.9)
0.073
Female
16 (72.7)
180 (53.1)
Age (years)
—
—
—
0–4
0
11 (3.2)
—
5–13
11 (50)
85 (23.5)
—
14–18
0
8 (2.4)
—
＞18
11 (50)
246 (72.6)
—
Vaccination
Yes
20 (90.9)
299 (88.2)
0.967
No
2 (9.1)
40（11.8）
Severity
—
—
—
Mild
—
188 (55.2)
—
Moderate
—
151 (44.8)
—
SARS-CoV-2 antibodies
—
—
—
IgM mean (range),S/CO
0.30 (0.09–0.92)
0.22 (0.09–0.52)
0.384
IgG mean (range),S/CO
31.64 (12.7–113.72)
20.37 (2.25–53.54)
0.068
Nucleic acid detection from the onset of time (days), mean (range)
5 (3.5, 6.5)
4 (3, 6)
0.317
Time to negative nucleic acid test (days), mean (range)
11.5 (10, 13)
12 (9.5, 13)
0.974
Comorbidities
—
—
—
Hypertension
4 (18.2)
57 (16.8)
1.0
Diabetes
1 (4.5)
21 (6.2)
1.0
Coronary artery disease
2 (9.1)
14 (4.1)
0.254
Cerebrovascular disease
0
11 (3.2)
1.0
Chronic respiratory diseases
0
4 (1.2)
1.0
Chronic kidney disease
1 (4.5)
1 (0.3)
0.118
Tumor
0
2 (0.6)
1.0
Autoimmune disease
0
6 (1.8)
1.0
Chronic hepatitis
0
2 (0.6)
1.0
Hematologic disease
0
2 (0.6)
1.0
All variables are expressed as n (%) except when indicated otherwise.
