Differences in Clinical and Imaging Features between Asymptomatic and Symptomatic COVID-19 Patients
Table 1
Clinical data of the patients [n (%)].
Items
Asymptomatic carriers
COVID-19 patients (n = 36)
Remain asymptomatic (n = 25)
Developed symptomatic (n = 22)
Gender
0.64
0.73
Male
15 (60.0)
15 (68.18)
25 (69.44)
Female
10 (40.0)
7 (31.82)
11 (30.56)
Age
12.42
0.02
<18 years
9 (36.0)
1 (4.55)
2 (5.56)
18–50 years
11 (44.0)
14 (63.64)
22 (61.11)
≥50 years
5 (20.0)
7 (31.82)
12 (33.33)
Epidemic history
52.32
<0.001
In Wuhan and surrounding areas
0
0
13 (37.14)
Close contact
25 (100.0)
22 (100.0)
12 (33.33)
Unclear epidemic
0
0
10 (27.78)
Maximum body temperature
1.47
0.72
≤37.2°C
3 (13.64)
3 (8.33)
37.3–38°C
7 (31.82)
15 (41.67)
38.1–38.9°C
3 (13.64)
10 (27.78)
≥39°C
1 (4.55)
3 (8.33)
Cough
7 (31.82)
16 (44.44)
0.91
0.34
Expectoration
3 (13.64)
8 (22.22)
0.66
0.51
Sore throat
0
7 (19.44)
4.87
0.03
Headache and dizziness
1 (4.55)
0
1.67
0.38
Fatigue
7 (31.82)
4 (11.11)
3.81
0.08
Muscle ache
2 (9.1)
1 (2.78)
1.11
0.55
Chest tightness and dyspnea
1 (4.55)
2 (5.56)
0.03
1.00
Gastrointestinal reaction
0
1 (2.78)
0.62
1.00
Normal or decreased leukocyte count
13 (52.0)
22 (100.0)
31 (86.11)
18.25
<0.001
Decreased lymphocyte count
3 (12.0)
6 (27.27)
15 (41.67)
6.36
0.04
Neutrophil/lymphocyte ratio
2.03 ± 2.00
3.32 ± 1.43
4.32 ± 4.38
3.82
0.02
Increased C-reactive protein
4 (16.0)
16 (72.73)
29 (80.56)
27.75
<0.001
Abnormal hepatic function
2 (8.0)
5 (22.73)
19 (52.78)
14.78
0.001
Abnormal renal function
2 (8.0)
5 (22.73)
13 (36.11)
6.41
0.04
Increased D-dimer
3 (12.0)
11 (50.0)
4 (11.11)
14.14
0.001
Abnormal myocardial enzymes
6 (24.0)
7 (31.82)
16 (44.44)
2.84
0.24
With comorbidities
3 (12.0)
1 (4.55)
15 (41.67)
13.06
0.001
Hospitalization days
12.08 ± 5.59
14.29 ± 5.83
15.17 ± 7.05
1.79
0.17
No. of severe patients
0
1 (4.55)
4 (11.11)
3.33
0.17
Note. Asymptomatic, those who remained asymptomatic; symptomatic, those who developed symptomatic later; VOCID-19, symptomatic COVID-19 patients. The Fisher exact test was used; #ANOVA was used.
