Table 1. Demographic information among the respondents returned from Hubei, China during COVID-19 outbreak in early 2020.

	Total (N = 42)	Male (N = 11)	Female (N = 31)
Proportion	100%	26.2%	73.8%
Age (mean, SD)	40.2, 14.8	42.9, 16.8	39.3, 14.1
15–19	4 (9.5%)	1 (9.1%)	3 (9.7%)
20–44	22 (52.4%)	4 (36.4%)	18 (58.1%)
45–54	10 (23.8%)	4 (36.4%)	6 (19.4%)
55–64	4 (9.5%)	1 (9.1%)	3 (9.7%)
65 or above	2 (4.8%)	1 (9.1%)	1 (3.2%)
Education level
Primary education or less	1 (2.4%)	0 (0%)	1 (3.6%)
Secondary education	18 (42.9%)	4 (36.4%)	14 (50.9%)
Bachelor’s degree	16 (38.1%)	4 (36.4%)	12 (42.9%)
Master’s degree or above	2 (4.8%)	1 (9.1%)	1 (18.9%)
Missing data	5 (11.9%)	2 (18.2%)	3 (9.7%)
Presence of chronic disease(s)	7 (16.7%)	2 (18.2%)	5 (16.1%)
Hypertension	3 (7.1%)	1 (9.1%)	2 (6.5%)
Diabetes Mellitus	2 (4.8%)	0 (0%)	2 (6.5%)
Hepatitis	2 (4.8%)	0 (0%)	2 (6.5%)
Dyslipidemia	1 (2.4%)	1 (9.1%)	0 (0%)
None	36 (85.7%)	10 (90.1%)	26 (83.9%)
Tabagism
Current Smoker	10 (23.8%)	4 (36.4%)	6 (19.3%)
Ex-smoker	6 (14.3%)	2 (18.2%)	4 (12.9%)
Never	26 (61.9%)	5 (45.5%)	21 (67.7%)
Reason for visit Hubei
Visit relatives	37 (88.1%)	10 (90.1%)	27 (87.1%)
Business trip	0 (0%)	0 (0%)	0 (0%)
Other reasons	5 (11.9%)	1 (9.1%)	4 (12.9%)
Location of accommodation
City center	14 (33.3%)	4 (36.4%)	10 (32.2%)
Countryside or town	11 (26.2%)	3 (27.3%)	8 (25.8%)
Village	17 (40.5%)	4 (36.4%)	13 (41.9%)
Number of people cohabit to share the bedroom
Alone	14 (33.3%)	3 (27.3%)	11 (35.5%)
2 people	16 (38.1%)	3 (27.3%)	13 (41.9%)
3 people	8 (19%)	3 (27.3%)	5 (16.1%)
4 people or above	4 (9.5%)	2 (18.2%)	2 (6.5%)