Clinical Characteristics of Foreign-Imported COVID-19 Cases in Xi’an, China

Figures & data

Table 1 Demographic, Baseline and Clinical Characteristics of Patients Infected with COVID-19

Variables	Patients (n=79)
Age (y)
Mean (SD)	38±10
Range	19–57
<18	0 (0.0%)
18–24	14 (17.7%)
25–49	56 (70.8%)
50–64	9 (11.3%)
≥65	0 (0.0%)
Sex
Female	9 (11.3%)
Male	70 (88.7%)
From countries
Singapore	27 (34.18%)
Russia	18 (22.78%)
Kazakhstan	13 (11.46%)
Pakistan	7 (8.86%)
Azerbaijan	6 (7.59%)
Belgium	2 (2.53%)
United Kingdom	2 (2.53%)
Spain	2 (2.53%)
Cambodia	1 (1.26%)
Sweden	1 (1.26%)
Clinical classification
Asymptomatic infection	19 (24.2%)
Mild type	19 (24.2%)
Moderate type	39 (49.1%)
Severe type	2 (2.5%)
Critically ill type	0 (0.0%)
Comorbidities
Hypertension	6 (7.59%)
Diabetes	2 (2.53%)
Respiratory system diseases	1 (1.26%)
Chronic liver disease	1 (1.26%)
Coronary heart disease	0 (0.00%)
Digestive system disease	0 (0.00%)
Malignant tumour	0 (0.00%)
Nervous system diseases	0 (0.00%)
Chronic kidney disease	0 (0.00%)
HIV infection	0 (0.00%)
Epidemiological history
Confirmed COVID-19	19 (24.1%)
Suspicious COVID-19 patients	15 (19.0%)
Unknown	45 (56.9%)
History of infection with COVID-19	13 (16.5%)
Signs and symptoms at admission
Cough	18 (22.8%)
Fever	9 (11.4%)
Sore throat	9 (11.4%)
Diarrhoea	6 (7.6%)
Stuffy nose	6 (7.6%)
Shortness of breath	5 (6.3%)
Rhinorrhoea	5 (6.3%)
Fatigue	5 (6.3%)
Chest pain	3 (3.8%)
Headache and mental disorder symptoms	2 (2.5%)
Muscle ache	0 (0.0%)
Anorexia	0 (0.0%)
Nausea and vomiting	0 (0.0%)
Onset of symptom to hospital admission (days)	6 (1–30)
Time from hospitalization to confirmation (days)
≤3	58 (73.4%)
>3	21 (26.6%)
Clinical outcome
Discharged	79 (100.00%)
Died	0 (0.0%)

Table 2 Laboratory Findings of Imported Patients Infected with COVID-19

Variables	Normal Range	Patients (n=79)
		Median (IQR)	Increased No. (%)	Decreased No. (%)
White blood cell count (×10^9/L)	3.5–9.5	6.54(6.49–7.61)	5(6.3%)	2(2.5%)
Lymphocyte count (×10^9/L)	1.1–3.2	2.06(1.65–2.35)	2(2.5%)	3(3.8%)
Platelet count (× 10^9/L)	125–350	237(205–278)	6(7.6%)	1(1.3%)
Neutrophil count (× 10^9/L)	1.8–6.3	4.12(2.92–4.65)	6(7.6%)	2(2.5%)
Monocyte count (×10^9/L)	0.1–0.6	0.52(0.43–0.65)	27(34.2%)	1(1.3%)
Eosinophil count (× 10^9/L)	0.02–0.52	0.10(0.07–0.16)	3(3.8%)	2(2.5%)
Haemoglobin (g/L)	130–175	146(136–155)	1(1.3%)	12(15.2%)
CRP* ≥5.0 (mg/L)	0.0–10.0	9(8–10)	4(5.1%)	0(0.0%)
ESR* (mm/h)	0.0–15.0	7(6–13)	10(12.7%)	0(0.0%)

Abbreviations: *CRP, C-reactive protein; *ESR, erythrocyte sedimentation rate.

Table 3 SARS-CoV-2 Nucleic Acid and Serum Anti-SARS-CoV-2 IgG and IgM Antibody Responses

Variables	Patients (n=79)
Number of nucleic acid tests
1	25(31.4%)
2	33(41.8%)
≥3	21(26.6%)
COVID-19-specific antibody
IgM (+)	52(65.8%)
IgG (+)	56(70.1%)
IgM (+) and IgG (+)	40(50.6%)
IgM (-) and IgG (-)	14(17.7%)

Table 4 Chest CT Findings of Patients with COVID-19

CT Finding	Patients (n=79) (%)
No abnormal density shadow	38 (48.1%)
Location of lesion
Unilateral pneumonia	17 (21.5%)
Bilateral pneumonia	24 (30.4%)
Type of lesion
Pure GGO*	6 (7.6%)
GGO with reticular and/or interlobular  septal thickening	21 (26.6%)
GGO with consolidation	13 (16.5%)
Consolidation	1 (1.3%)

Abbreviation: *GGO, ground-glass opacity.

Figure 1 Chest CT images findings for four patients. (A) Chest computed tomography (CT) images of a 42-year-old male patient with COVID-19 taken on August 9, 2020, showing left lung pure GGO. (B) Chest CT images of a 54-year-old male patient with COVID-19 taken on August 9, 2020, showing GGO with reticular and interlobular septal thickening in both lungs. (C) Chest CT images of a 40-year-old female patient with COVID-19 taken on April 21, 2020, showing unilateral GGO with consolidation. (D) Chest CT images of a 33-year-old male patient with COVID-19 taken on April 27, 2020, showing left lung consolidation.